Datasheet UR5HCFJL-16-P, UR5HCFJL-16-FN, UR5HCFJL-16-FB Datasheet (Semtech)

GreenCoderTMUR5HCFJL

Zero-PowerTMKeyboard

Encoder for Portable Systems

GreenCoder is a trademark of Semtech Corp. All
other trademarks belong to their respective
companies.

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

1

HID & SYSTEM MANAGEMENT PRODUCTS, KEYCODERTMFAMILY

DESCRIPTION FEATURES

The GreenCoder

TM

(UR5HCFJL) is
a unique, Zero-PowerTMkeyboard
encoder that provides an optimum
performance level for both battery­operated and desktop systems.

The GreenCoderTMscans,
debounces and encodes an 8 X 16
keyboard matrix, and will provide
direct drive for 3 LEDs and two
bi-directional channels for
communication with a BIOS­compatible system as well as an
additional keyboard-compatible
device. It fully supports all three
PS/2 scan code sets and will
implement up to three alternate
keyboard layers for full 101/102
functionality.

The GreenCoderTMemploys a
unique Self-Power Management

TM

method that reduces the power
consumption of the keyboard
sub-system to an unprecedented
minimum, transparently and without
user intervention. In “Active” mode,
the encoder consumes less than 2
mA (Typ @5V). In “Sleep” mode the
encoder consumes less than 2 µA
(Typ @5V) The encoder can even
nap between keystrokes and
therefore it is rarely active and
rarely consumes significant levels of
power.

A "stand-by" mode (600 µA Typ
@5V) is entered for as long as
a periodic task is active. After a
programmed period of user
inactivity the GreenCoder

TM

gradually dims the LEDs for
further power savings.

The GreenCoderTMis ideal for use in
battery laptop/notebook designs
and Energy Star compliant
keyboards.

R6NLVXNCDRV

_RESET

VCC

OSCI

OSCO

EKC1

NC

OPT

KD

KC
EKC
EKD

CL

C0

C1

C2

C3

C4

R7
SL
R5
R4
R3
R2
R1
R0
C8
C9
C10

NC

C5C6C7

GND

NC

C15

C14

C13

C12

C11

40

1

6

7

12

17

18

23

28

29

34

39

PLCC

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21

_RESET

DRV

VX
NL
R6

OPT

KD

KC
EKC
EKD

CL

C0

C1

C2

C3

C4

C5

C6

C7

GND

VCC
OSCI
OSCO
EKC1
R7
SL
R5
R4
R3
R2
R1
R0
C8
C9
C10
C11
C12
C13
C14
C15

DIP

R6

OPT

KD

KC
EKC
EKD

CL

C0

C1

C2

C3

NLVXDRV

_RESETNCNC

VCC

OSCI

OSCO

EKC1

R7

SL
R5
R4
R3
R2
R1
R0
C8
C9
C10
C11

C4C5C6

C7

NC

GND

C15

C14

C13

C12

NC

QFP

• Laptop/Notebook

• Portable Equipment

• Energy Star Compliant

• Medical Instruments

• Palmtops/ PDAs

• Wakes-up only to respond to an

external event and for a minimum
period of time (2 mA current
consumption)

• Provides interface for external
keyboard/keypad or other 8042­compatible device

• Custom versions available in small
or large quantities

• Optimized power-saving operation
with idle consumption of less
than 2 µA

• Programmable LED dimming for
further power savings

• Ready to interface to Fujitsu's
7316, 7654,7656, and
1406 keyboards

• 3, 3.3 and 5 Volt operation

APPLICATIONS

PIN ASSIGNMENTS

FUNCTIONAL DIAGRAM

ORDERING CODE

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

2

XX = 16 for FKB7136,06 for FKB1406 matrix compatibility

Data Buffer

Interrupt Control

PC

Communication

Channel

8042 Emulation

(External Keyboard)

Communication

Channel

EKC1

KC
KD

EKC
EKD

Keyboard Encoder

Mode Control

Status LEDs

Row Data Inputs

Column Select

Ouputs

NL/CL/SL

3

8

16

DRV

16-Bit Timer

C0-C15

R0-R7

Package options

40-pin Plastic DIP
44-pin, Plastic PLCC
44-pin, Plastic QFP

Pitch In mm’s

2 54 mm

1.27 mm

0.8 mm

TA = -40°C to +85°C

UR5HCFJL-XX-P
UR5HCFJL-XX-FN
UR5HCFJL-XX-FB

FUNCTIONAL DESCRIPTION PIN DEFINITIONS

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

3

The GreenCoderTMconsists
functionally of seven major sections
(see Functional Diagram, previous
page). These are the Keyboard
Encoder, a 16-Bit Timer, the Mode
Control Unit, the Data Buffer, the
Interrupt Control, the PC Commun­ication Channel and the 8042
Emulation Channel. All sections
communicate with each other and
operate concurrently.

Mnemonic DIP PLCC QFP Type Name and Function

VCC 40 44 38 I Power Supply: +5V
VSS 20 22 17 I Ground
OSCI 39 43 37 I Oscillator input
OSCO 38 42 36 O Oscillator output
_RESET 1 1 41 I Reset: apply 0V to provide orderly start-up
EKC1 37 41 35 I External Keyboard Clock 1:connects

to external keyboard clock line and is used
to generate an interrupt for every clock line

transmission
VX 3 4 43 I Tie to Vcc
OPT 6 7 2 I Used for options selection
KC 8 9 4 I/O Keyboard Clock: connects to PC

keyboard port data line
KD 7 8 3 I/O Keyboard Data: connects to

PC port data line
EKD 10 11 6 I/O External Keyboard Data: connect to

external keyboard clock line
EXC 9 10 5 I/O External Keyboard Clock 1: connects

to external keyboard data line
DRV 2 2 42 I Wake-up line: used for sleep mode
R0-R5 29-34 32-37 27-32 I Row Data Inputs
R6 5 6 1 I
R7 36 39 34 I
C0-C4 12-16 13-17 8-12 I/O Column Select Outputs: select 1 of 16
C5-C7 17-19 19-21 13-15 O columns
C8-C15 28-21 31-24 26-18 O
CL 11 12 7 O Caps Lock LED
NL 4 5 44 O Num Lock LED
SL 35 38 33 O Scroll Lock LED
NC 3,18 39-40 No Connects: these pins are unused

23,40 16,22

Note: An underscore before a pin mnemonic denotes an active low signal.

KEYBOARD ENCODER

The encoder scans a keyboard
organized as an 8 row by 16 column
matrix for a maximum of 128 keys.
Smaller-size keyboards are support­ed provided that all unused row
lines are pulled to Vcc. When
active, the encoder selects 1 of the
16 column lines (C0-C15) every 512
µS and then reads the row data
lines (R0-R7). A key closure is
detected as a 0 in the
corresponding position of the matrix.
A complete scan cycle for the entire
keyboard takes approximately 9.2
mS. Each key found pressed is
debounced for a period of 20 mS.
Once the key is verified, the
corresponding key code(s) are
loaded into the transmit buffer of the
PC keyboard communication
channel.

Scan Code Table Sets

The UR5HCFJL supports all three
scan code table sets. Scan Code
Table Set 3 allows the user to
program individual key attributes
such as Make/Break and Typematic
or Single-Touch Action. For more
information, refer to the IBM Tech­nical Reference Manuals. Custom
scan code tables, including macros,
are also available.

KEYBOARD ENCODER, (CON’T) MODE CONTROL

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

4

Embedded Numeric Keypad

The GreenCoderTMimplements an
embedded numeric keypad. The
Numeric Keypad Function is
invoked by pressing the Num Lock
Key.

FN Key

A special FN Key has been
implemented to perform the
following functions while it is held
pressed:

• Function Key F1 becomes F11

• Function Key F2 becomes F12

• Control Left Key becomes Ctrl

Right

• Embedded numeric keypad keys
become regular keys

If Num Lock is not set:

• Embedded numeric keypad keys
provide the same codes as a
numeric keypad when the Num
Lock is not set (Arrow keys, PgUp,
PgDn, etc.)

Status LED indicators

The controller provides an interface
for three LED shift status indicators.
All three pins are active low to
indicate the status of the host
system (Num Lock, Caps Lock and
Scroll Lock) and are set by the
system. After approximately a one­minute period of keyboard inactivity,
LEDs are dimmed to conserve
power. They are set to full
brightness again upon a new
keystroke.

N-Key Rollover

In this mode, the code(s) corresponding to each key press are transmitted
to the host system as soon as that key is debounced, independently of the
release of other keys.

If a key is defined to be Typematic, the corresponding make code(s) will be
transmitted while the key is held pressed. When a key is released, the
corresponding break code(s) are then transmitted to the host system. If the
released key happens to be the most recently pressed, then Typematic
action is terminated. There is no limitation in the number of keys that can
be held pressed at the same time. However, two or more key closures,
occurring within a time interval less than 5 mS, will set an error flag and will
not be processed. This procedure protects against effects of accidental key
presses.

“Ghost” Keys

In any scanned contact switch matrix, whenever three keys defining a
rectangle on the switch matrix are held pressed at the same time, a fourth
key positioned on the fourth corner of the rectangle is sensed as being
pressed. This is known as the “ghost” or “phantom” key problem. Although
the problem cannot be totally eliminated without using external hardware,
there are methods to neutralize its negative effects for most practical
applications. Keys that are intended to
be used in combinations or are likely to
be pressed at the same time by a fast
typist (i.e., keys located in adjacent
positions on the keyboard) should be
placed in the same row or column of the
matrix whenever possible. Shift Keys
(Shift, Alt, Ctrl) should not reside in the
same row (or column) with any other
keys. The GreenCoderTMhas built-in
mechanisms to detect the presence of a
“ghost” key, thus eliminating the
necessity of external hardware.

Actual key presses

“Ghost”

Key

Figure 1: “Ghost” or “Phantom” Key
Problem

8042 EMULATION CHANNEL SPECIAL HANDLING

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

5

The GreenCoderTMfully emulates a
system’s keyboard port, available to
a standard 84/85/101/102 external
keyboard or other 8042-compatible
device. Communication with a
keyboard-compatible device is
accomplished by clock and data
lines via EKC and EKD pins,
respectively. A third pin, EKC1 that
connects to the Clock Line,
interrupts the controller whenever
the external device initiates a
communication session.

When power is first applied, the
controller proceeds with the
standard reset sequence with the
external device. Data and
commands initiated from the
external device are buffered in the
controller’s FIFO along with data
from the scanned matrix, and then
are presented to the system as if
they were coming from a single
source. Once they are
acknowledged, commands and
data from the system are then
transmitted to the external device.

Connection of External Device

The UR5HCFJL will detect the presence of an external device. If an
external keyboard or other device was not connected during power-on and
is connected at a later time, the encoder will proceed with the normal reset
routine in order to properly initialize the external device. After
communication has been established, the encoder will continue to check for
the presence of the external device. While the external device is
connected, the encoder will not enter the sleep mode. If the device is
disconnected at a later time, the encoder will become aware of it. If a
subsequent connection takes place, the controller will re-initiate a reset
sequence. This unique feature allows the user to connect or disconnect an
external device at any time without having to reset the system.

Shift Status LEDs

Shift Status LEDs (Num Lock, Caps Lock and Scroll Lock) indicate the
status of the system and are controlled by commands sent from the system.
Set/Reset Status Indicator Commands from the system will be executed
both by the external keyboard and the scanned matrix.
For example, if the user presses the Caps Lock Key on either keyboard, the
Caps Lock LED will be affected on both keyboards. The LED status
indicators are properly set after each new connection of an external
keyboard.

PC COMMUNICATION

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

6

The UR5HCFJL implements all the
standard functions of
communication with a BIOS­compatible PC/XT or AT/PS/2 host
system. Two lines, KC and KD,
provide bi-directional clock and
data signals. In addition, the
UR5HCFJL supports all commands
from and to the system, as
described in the IBM Technical
Reference Manuals.

The following table shows the
commands that the system may
send and their values in hex.

Command Hex Value

Set/Reset Status ED
Indicators

Echo EE
Invalid Command EF
Select Alternate F0

Scan Codes
Invalid Command F1
Read ID F2
Set Typematic F3

Rate/Delay
Enable F4
Default Disable F5
Set Default F6
Set All Keys

Typematic F7
Make/Break F8
Make F9
Typematic/Make/Break FA

Set Key Type

Typematic FB
Make/Break FC

Make FD
Resend FE
Reset FF

Table 2: Keyboard Commands from the

System (AT/PS/2 protocol)

These commands are supported in
the AT/PS/2 protocol and can be
sent to the keyboard at any time.

The following table shows the
commands that the keyboard may
send to the system.

Command Hex Value

Key Detection 00*
Error/Overrun

Keyboard ID 83AB
BAT Completion Code AA
BAT Failure Code FC
Echo EE
Acknowledge (Ack) FA
Resend FE
Key Detection

Error/Overrun FF**

*Code Sets 2 and 3

**Code Set 1
Table 3: Keyboard Commands to the

System (AT/PS/2 protocol)

When an external keyboard is
connected, commands from the
system will also be directed to the
external keyboard. Presence or
absence of an external device will
not effect the normal operation of
the GreenCoderTM.

STATES OF OPERATION USING THE GREENCODERTMFOR SYSTEM MANAGEMENT TASKS

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

7

The GreenCoder

TM

provides an ideal complement to low-power chip sets

targeted to the portable and mobile computing market. The GreenCoder

TM

can be used to handle several system management tasks for small, portable
system designs, thus saving space and additional components for the
System Designer. Such system management tasks include those listed
below.

However, since most of the system management tasks are application and
hardware-dependent, detailed implementation information is outside the
scope of this document. For application examples and sample schematics,
contact Semtech Technical Support.

System shut-down/wake-up signal

The GreenCoderTMcan provide the system power management unit with a
shut-down/wake-up signal which can be invoked either by a special
keyboard combination or after a programmed period of user inactivity.

Note: Self-Power ManagementTMis a feature protected under Semtech Corp. patent and copyright rights.
Purchase of any version of the UR5HCFJL encoder conveys a license to utilize the Self-Power Management
feature only through use of the UR5HCFJL in a PS/2-compatible keyboard subsystem.

The GreenCoderTMhas three states
of operation, implemented to
minimize the power consumption of
the keyboard subsystem. The
following diagram illustrates the
three states of operation of the
GreenCoderTM.

Most of the time, the GreenCoder

TM

is in the Sleep State. Power
consumption in this state is
approximately 2 µA at 5 Volts of
operation. The GreenCoderTMenters
the Active State only when there is
an event to process, such as a
keystroke, a command from the
system, or data from the external
PS/2-compatible device.

The GreenCoderTMenters and stays
in the Stand-By State if an external
device is connected to the auxiliary
port or if one or more LEDs are
turned on.

In the Stand-By State, the IC
consumes approximately 600 µA at
5 Volts. Transition from one state to
the other does not require any input
from the system.

SLEEP
STATE

STAND BY
STATE

ACTIVE
STATE

Figure 2: States of Operation of
UR5HCFJL

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

8

KEY MAP FOR FKB7211 (UR5HCFJL-11)

Columns (C0–C13)

012345678910111213
LCtrl* Esc Tab Fn LAlt* Space ` (BkQt) Insert Delete ArrLft ArrDn LShift ArrRt

F1* Z X C . (per) / ArrUp RShift End

Pad . Pad /

1 CapLk V B N M , (com) , (appos) Enter PgDn

Pad 0

F2 A S D F J K L ; PgUp

Pad 1 Pad 2 Pad 3 Pad +

2 3 4 T Y U I O P BkSpc

Pad 4 Pad 5 Pad 6 Pad -

F4 F5 F6 F7 F8 F9 F10 NumLk ScrLk PrtScr

F3% 67890- (dash) = Pause

5 Pad 7 Pad 8 Pad 9 Pad *

Q W E R G H [ ] \ Home

Rows (R0–R7)

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

9

KEYBOARD LAYOUTS (US ENGLISH)

Depending on the status of the Num Lock and the FN Key, the UR5HCFJL implements one of four keyboard
layouts.(Key numbering of a standard 101/102 keyboard is shown.)

Layout A (Default layout)

110

Esc

112

F1

113F2114F3115F4116

F5

118F7119F8120F9121

F10

90

125

ScLk

124

PrSc

126

Brk

1

2

2

3

3

4

4

5

5

6

6

7

7

8

9

9

10

0

11

-

12

=

13

Home

80

Tab16Q

17

W

18

E

19

R

20

T

21

Y

22

23

I

24

0

25

P

26

27

[

28

\]

29

PgUp

85

A

31

S

32

D

33

F

34

G

35

H

36

J

37

38

L

39

;

40

,

41

PgDn

86

Z

46

X

47

C

48

V

49

B

50

N

51

M

52

,

53

.

54

/

55

83

End

81

FN

Alt

60

,

1

Ins

75

Del

76

79

84

89

61

43

Enter

BkSp

15

Shift

57

CpsLck

30

Shift

44

58

Ctrl

SPACE

117

F6

NmLk

8

U

K

Layout B (Num Lock is set)

110

Esc

112

F1

113F2114F3115F4116

F5

118F7119F8120F9121

F10

90

125

ScLk

124

PrSc

126

Brk

1

2

2

3

3

4

4

5

5

6

6

7

7

91

96

9

101

*

100

-

12

=

13

Home

80

Tab16Q

17

W

18

E

19

R

20

T

21

Y

22

92

5

97

102

-

105

27

[

28

\]

29

PgUp

85

A

31

S

32

D

33

F

34

G

35

H

36

1

93

98

3

103

+

106

,

41

PgDn

86

Z

46

X

47

C

48

V

49

B

50

N

51

0

99

,

53

.

104

/

95

83

End

81

FN

Alt

60

,

1

Ins

75

Del

76

79

84

89

61

43

Enter

BkSp

15

Shift

57

CpsLck

30

Shift

44

58

Ctrl

SPACE

117

F6

NmLk

8

4

6

2

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

10

KEY MAP FOR FUJITSU FKB7316-001 (UR5HCFJL-16)

Esc

F00F1F01F2F02F3F03F4F04F5F05F6F06F7F07F8F08F9F09

F10

F10

F11

F11

F12

F12 F13 F14 F15

Pause

F16

Break

2

@

E02

3

#

E03

4

$

E04

5

%

E05

6

^

E06

7

&

7

E07

8

*

8

E08

9

(

9

E09

0

)

*

E10

2

@

E11

2

@

E12

Q

D01

W

D02

E

D03

R

D04

T

D05

Y

D06

U

4

D07

I

5

D08

O

6

D09

P

-

D10

[

{

D11

]

}

D12

Caps
Lock

C00

A

C01

S

C02

D

C03

F

C04

G

C05

H

C06

J

1

C07

K

2

C08

L

3

C09

;

:

+

C10

?

"

C11

Z

B01

X

B02

C

B03

V

B04

B

B05

N

B06

M

0

B07

,

<

B08

.

>

.

B09

A00

Ctrl

A01

Alt

A02

~

A03

/

?

/

B10

Alt

A09

Ins

A10

Del

A11

Scroll

Lock

Pause

Sys Rq

Num

Lock

Shift

0

End

PgDn

PgUp

Home

Tab

FN

Shift

1

!

E01

B00

D00

Space

A06

Enter

BS

E13 E14

D14

C14

B14

A14A13

A12

B12 B13

C13

D13

/

:

Columns C0-C15

0123456789101112131415

Space B N / RAlt ArrDn ArrRt ArrLft

Esc F4 F5 G F6 H RQ LAlt ArrUp

Tab F3 BkSpc T CapLk RSB Y LShift LBS F7

PgUp LQ F2 F9 K5 F1 = FN K6 Dash F8 Del Ins Home

LCtrl A D \ F S K J SCol L

Z C Enter V X Comma M RShift Period NumLk Pause

PgDn K1 K3 F10 K4 K2 K8 K7 K0 PK PrtScr F11 F12 End

Q E R W I U P O ScrLk

Rows (R0–R7)

0
1
2
3
4
5
6
7

KEYBOARD LAYOUT FOR FUJITSU FKB7316-001 (URHCFJL-16)

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

11

KEY MAP FOR FUJITSU FKB1406 (UR5HFJL-06)

Columns (C0–C13)

012345678910111213

LAlt* ` (BkQt) LCtrl* FN Esc 1 2 9/Pad 9 0/ Pad * - (dash) = BkSpc

F1 F2 F9 F10 NmLk Bk

\ LShift Del T Y U/Pad 4 I/Pad5 Enter RShift PgDn

TAB Q W E R O/Pad 6 P/Pad - [ ]

Ins Pause ScrLk

Z CapLk K/Pad 2 L/Pad 3 ;/Pad + , (appos)

PrtScr SysReq PgUp

A S D F G H J/Pad 1 //Pad /

Home

X C V B N M/Pad 0 , (com) . (per) Space

34567/Pad 7 8/Pad 8
F3 F4 F5 F6 F7 F8 Prog End

* In FN Case:

LCtrl = RCtrl
LAlt = RAlt

Refer to Page 4 for a description of FN key specifics.

Rows (R0–R7)

Esc

F21

!

F22

@

F33

#

F44

$

F55

%

F66

^

F77

&

F88

*

F99

(

F100

)

Num
Lk

-

_

Bk=

+

QWERTYU I OP

ASDFGHJ KL

ZXCVBNM

~

<

,

.

>?

/

:
;

Prt
Scr

"

'

Sys
Req

{

Pause

Scr
Lk

Ins

EndPgDnPgUpHome

Enter

:
;

Ctrl Alt

Fn Shift

Del

Cap
Lock

[

]

}

0

1

23

456

*

9

8

7

_

. /

+

Prog

`

Shift

0
1
2
3
4
5
6
7

KEY LAYOUT FOR FUJITSU FKB1406 (UR5HFJL-06)

KEY MAP FOR THE GREENCODERTMUR5HCFJL-7654

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

12

Rows (R0-R7)

0 1234567

FN

LWin

Tab CapsLk 1 S Z A Q Esc

RAlt LAlt

F1 F2 F3 E D W 2 X

8/

N89/N9I/N5

, Space K/

N2U/N4M/N0

F6 3 4 F C R 5 F4

F9 F5 6 V B G T F7

F10 F11 F8 N H Y 7/

N7J/N1

F12 0/

N*

O/

N6./N.

L/N3NumLk/

FScrlLk

Pause = ] \ [ `

BkSp DnArr/ UpArr/ ‘ WinApp Enter Ins/

FPgDn FPgUp FPrtScr

RWin

RArr/ LArr/ Del/ / /

N/

;/

N+

P/

N-

-

FEnd FHome FSysReq

LCtrl RCtrl

LShft RShft

Note1: The letter N in italics, followed by a number or symbol, indicates that key in Num
Case.
Note2: The letter F in italics, followed by a key function, indicates that key in Function
Case.

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Columns (C0-C15)

Copyright Semtech
DOC5-FJL-DS-106

www.semtech.com

13

KEYBOARD LAYOUT FOR THE FUJITSU FKB7654

tab

Q W E

ctrl altfn Zspace alt ctrl

R T Y U I O P

Z X C V B N M

, .

/

<>?

cap
lock

A S D F G H J K L

;

!

1

@

2

#
3

$
4

%

5

^
6

&
7

*

879

546

21

0

.

/

3

+

8

(

9

)
0

_

-

+
=

bk
sp

[

:

'

"

\

|

]

{}

shiftshift

Esc F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12

SL
NL

Pau
Brk

Ins
Prt

Del
Srq

pgup

pguppgup pgup

~

`

enter

IMPLEMENTATION NOTES FOR THE UR5HCFJL

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

14

The following notes pertain to the suggested schematics found on the next
pages.

The Built-in Oscillator on the UR5HCFJL requires the attachment of the 4.00
MHz Ceramic Resonators with built-in Load Capacitors.. You can use either
an AVX, part number PBRC-1.00 BR; or a Murata part number
CSTCC2.00MG ceramic resonator.

It may also be possible to operate with the 2.00 MHz Crystal, albeit with
reduced performance. Due to their high Q, the Crystal oscillator circuits
start-up slowly. Since the GreenCoderTMconstantly switches the clock on
and off, it is important that the Ceramic Resonator is used (it starts up much
quicker than the Crystal). Resonators are also less expensive than Crystals.

Also, if Crystal is attached, two Load Capacitors (33pF to 47pF) should be
added, a Capacitor between each side of the Crystal and ground.

In both cases, using Ceramic Resonator with built-in Load Capacitors, or
Crystal with external Load Capacitors, a feedback Resistor of 1 Meg should
be connected between OSCin and OSCout.

Troubleshoot the circuit by looking at the Output pin of the Oscillator. If the
voltage it half-way between Supply and Ground (while the Oscillator should
be running) --- the problem is with the Load Caps / Crystal. If the voltage it
all the way at Supply or Ground (while the Oscillator should be running) --­there are shorts on the PCB.

NOTE: when the Oscillator is intentionally turned OFF, the voltage on the
Output pin of the Oscillator is High (at the Supply rail).

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

15

SUGGESTED INTERFACING FOR THE GREENCODERTMUR5HCFJL-FB

Shield

VCC

VCC

VCC

VCC

VCC

VCC

J1

CON16

123456789

10111213141516

J2

CON8

1234567

8

Y1

2.00MHz

R1

1M

D1

D2

D3

R2

150K

J4

CON6

12345

6

J3

CON5

12345

C1

10uF

C2

.1uF

R3

1.5K

R4

1.5K

R5

1.5K

C3

47pF

C4

47pF

C5

47pF

C6

47pF

R6

10K

R7

10K

R8

10K

R9

10K

D4A

BAV54A

1

2

D4B

BAV54A

1

3

RN1

15K

9
8
7
6
5
4
3
2

1

10

U2

Voltage Detector

VSS

1

VIN

2

VOUT

3

U1

UR5HCFJL-FB

RESET

41

EKC1

35

EKD
6

EKC
5

DRV

42

KC4KD

3

OSCI

37

OSCO

36

NL

44

CL

7

C1518C1419C1320C1221C1123C10

24

C925C826C715C614C513C412C311C210C19C08R734R61R532R431R330R229R128R0

27

VCC

38

VSS

17

VX

43

SL

33

OPT

2

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

16

MECHANICALS FOR THE UR5HCFJL-P

40 21

1 20

B

A

Seating
Plane

N

K

D

F

G

H

C

L

J

M

Notes:

1. Positional tolerance of leads (D) shall be
within 0.25 mm (0.010) at maximum material
condition, in relation to the seating plane and
each other.

2. Diminsion L is to the center of the leads when
the leads are formed parallel.

3. Dimension B does not include mold flash.

B
C
D

F
G
H

J
K

L

M

N

13.72

14.22

0.540

0.560

3.94

5.08 0.155 0.200

0.36

0.56 0.014

0.022

1.02

1.52 0.040 0.060

2.54 BSC 0.100 BSC

2.16 0.085

0.20 0.008

2.92 0.015

15 0 15

0.51

1.02 0.020 0.040

MIN MAX

MIN MAX

MILLIMETERS INCHES

DIM

0

0

0

A 51.69 52.45

2.035

2.065

0.38

0.015

0.1353.43

15.24 BSC 0.600 BSC

0

1.65

0.065

0

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

17

MECHANICALS FOR THE UR5HCFJL-FN

W

Y BRK

D

D

V

N

M

L

1

(Note 1) 44

44

Leads

PLCC

P

+

+

Z

G

G1

C

A

R

E

J

44

(Note 1)

Detail S

G1

X

Note 1

U

Z1

B

A
B
C
E
F
G
H
J
K
R
U
V

W

X
Y

Z
G1
K1
Z1

17.40 17.65

0.685

0.695

17.40

17.65 0.685 0.695

4.20 4.57 0.165 0.180

2.29 2.79 0.090 0.110

0.33 0.48 0.013 0.019

1.27 BSC 0.050 BSC

0.66 0.81 0.026 0.032

0.51 - 0.020 -

0.64 - 0.025 -

16.51 16.66 0.650 0.656

16.51 16.66 0.650 0.656

1.07

1.21 0.042 0.048

- 0.50 - 0.020

2 10 2 10

15.50 16.00 0.610 0.630

1.02 - 0.040 -

2 10 2 10

MIN

MAX MIN MAX

MILLIMETERS INCHES

1.07 1.21 0.042 0.048

1.07 1.42 0.042 0.056

DIM

00

0

0

0

00

K1

K

F

H

0.18 (0.007)

0.18 (0.007)TT

-

LSMSNSP

S

LSM

S

NSP

S

0.18 (0.007)

0.18 (0.007)TT

-

LSMSNSP

S

LSM

S

NSP

S

0.18 (0.007) T L

SMS

NSP

S

0.18 (0.007) T LSM

S

NSP

S

0.18 (0.007) T-LSMSNSP

S

0.25 (0.010) T-LSMSNSP

S

Seating Plane

T

0.010 (0.004)

0.18 (0.007) T-LSMSNSP

S

Notes:

1. Due to space limitation, the chip
is represented by a general (smaller)
case outline drawing rather than
showing all 44 leads.

2. Datums L, M, N, and P determine where
the top of the lead shoulder exits plastic
body at mold parting line

3. DIM G1, true position to be measured
at Datum T, Seating Plane

4. DIM R and U do not include mold
protusion. Allowable mold protusion is

0.25 (0.010) per side.

5. Dimensioning and tolerancing per Ansi
Y14.5M, 1982

6. Controlling dimension: Inch

Detail S

M

M

M

M

0.25 (0.010) T

-

LSM

S

NSP

S

--

-

-

M

-

-

-

M

-

M

--

M

-

-

-

View D-D

M

-

M

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

18

MECHANICALS FOR THE UR5HCFJL-FB

Detail A

M

Q

W

K

X

T

R

C

Datum
Plane

Detail C

L

B

A

L

B

V

D

A

S

C

E

G

M

M

H

Seating
Plane

H

Datum
Plane

A,B,D

0.20 (0.008) C

A-B

S

D

S

M

0.05 (0.002) A-B

0.20 (0.008) H

A-B

S

D

S

M

0.20 (0.008) H

A-B

S

D

S

M

0.20 (0.008) C

A-B

S

D

S

M

0.05 (0.002) A-B

0.01 (0.004)

B
C
D
E

F
G
H

J
K

L

M

N
Q

R

S

T
U
V

X

9.90 10.10

0.390

0.398

2.10

2.45 0.083 0.096

0.30 0.45 0.012 0.018

2.00 2.10 0.079 0.083

0.30 0.40 0.012 0.016

0.80 BSC 0.031 BSC

0.25 0.010

0.13

-

0.005

0.65

-

0.026

-

5 10 5 10

0.13

0.17 0.005 0.007

13.45 0.530

0.13 0.005
0

0

0.510

0.40 0.016

MIN MAX MIN MAX

MILLIMETERS INCHES

0 7 0 7

0.13 .30 0.005 0.012

DIM

0

0

0

0

0

0

0

JN

F

Base Metal

D

0.20 (0.008) C

A-B

S

D

S

M

Section B-B

A 9.90 10.10

0.390

0.398

0.23

0.009

0.0370.95

8.00 REF 0.315 REF

12.95 0.510

0

0

0

W

12.95

1.6 REF

13.45

0.530

0.063 REF

Notes

1. Dimensioning and tolerancing per Ansi
Y14.5-M, 1982

2. Controlling dimension: Millimeter

3. Datum Plane "H" is located at the
bottom of the lead and is coincident
with the lead where the lead exits
the plastic body at the bottom of the
parting line.

4. Datums -A-, -B-, and -D- to be determined
at Datum Plane -H-.

5. Dimensions S and V to be determined
at seating plane -C-.

6. Dimensions A and B do not include
Mold protusion. Allowable protusion
is 0.25 (0.010) per side. Dimensions
A and B do include mold mismatch
and are determined at Datum Plane -H-.

7. Dimension D does not include Danbar
protrusion. Allowable Danbar
protrusion is 0.08 (0.003) total in
excess of the D dimension
at Maximum Material Condition.
Danbar cannot be located on the
lower radius or the foot.

--

-

--

B

Detail A

Detail C

1

12

22

11

34

44

33 23

H

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

19

ELECTRICAL SPECIFICATIONS

Absolute Maximum Ratings
Ratings Symbol Value Unit

Supply Voltage Vdd -0.3 to +7.0 V
Input Voltage Vin Vss -0.3 to Vdd +0.3 V
Current Drain per Pin I 25 mA
(not including Vss or Vdd)
Operating Temperature TA T low to T high °C
UR5HCFJL-XX -40 to +85
Storage Temperature Range Tstg -65 to +150 °C

Thermal Characteristics
Characteristic Symbol Value Unit

Thermal Resistance Tja °C per W

Plastic DIP 60
Plastic PLCC 70

DC Electrical Characteristics (Vdd=5.0 Vdc +/-10%, Vss=0 Vdc, Temperature range=T low to T high unless otherwise noted)
Characteristic Symbol Min Typ Max Unit

Output Voltage (I load<10µA) Vol 0.1 V

Voh Vdd–0.1
Output High Voltage (I load=0.8mA) Voh Vdd–0.8 V
Output Low Voltage (I load=1.6mA) Vol 0.4 V
Input High Voltage Vih 0.7xVdd Vdd V
Input Low Voltage Vil Vss 0.2xVdd V
User Mode Current Ipp 5 3.5

mA

Data Retention Mode (0 to 70

°C) Vrm 2.0 V

Supply Current* Idd

Run 2.5 3.5 mA
Wait 0.8 1.5 mA
Start 2.0 50 µA

I/O Ports Hi-Z Leakage Current Iil +/-10 µA
Input Current Iin +/- 1 µA
I/O Port Capacitance Cio 8 12 pF
*In a typical application circuit, including external A/D.

Control Timing (Vdd=5.0 Vdc +/-10%, Vss=0 Vdc, Temperature range=T low to T high unless otherwise noted)
Characteristic Symbol Min Max Unit

Frequency of Operation fosc MHz

Crystal Option 2.0

External Clock Option dc 2.0

Crystal Oscillator Startup Time fop MHz

Crystal (fosc/2) 2.0

External Clock Option dc 2.0
Cycle Time tcyc 1000 ns
Crystal Oscillator Startup Time toxov 100 ms
Stop Recovery Startup Time tiLCH 100 ms
Reset Pulse Width tRL 8 tcyc
Interrupt Pulse Width Low tLIH 125 ns
Interrupt Pulse Period tiLIL

*tcyc

OSC1Pulse Width tOH,

TOL

90 ns

*The minimum period tiLIL should not be less than the number of cycle times it takes to execute the interrupt service routine plus 21 tcyc.

Copyright Semtech, 1997-2001
DOC5-FJL-DS-106

www.semtech.com

20

For sales information
and product literature,
contact:

HID & System Mgmt Division
Semtech Corporation
568 Broadway
New York, NY 10012

[e-mail]
http://www.semtech.com

212 226 2042 Telephone
212 226 3215 Telefax

Semtech Western Regional Sales
805-498-2111 Telephone
805-498-3804 Telefax

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972-437-0380 Telephone
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[phone] Telephone
[phone] Telefax

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[phone] Telephone
[phone] Telefax

Copyright 2000-2001 Semtech Corporation. All rights reserved.
KeyCoder, GreenCoder, Zero-Power and Self-Power Management
are trademarks of Semtech Corporation. Semtech is a registered
trademark of Semtech Company. All other trademarks belong to
their respective companies.

INTELLECTUAL PROPERTY DISCLAIMER
This specification is provided "as is" with no warranties whatsoever
including any warranty of merchantability, fitness for any particular
purpose, or any warranty otherwise arising out of any proposal,
specification or sample. A license is hereby granted to reproduce
and distribute this specification for internal use only. No other
license, expressed or implied to any other intellectual property
rights is granted or intended hereby. Authors of this specification
disclaim any liability, including liability for infringement of proprietary
rights, relating to the implementation of information in this
specification. Authors of this specification also do not warrant or
represent that such implementation(s) will not infringe such rights.