Datasheet UM3758-180AM, UM3758-180A, UM3758-120AM, UM3758-120A, UM3758-108BM Datasheet (UMC)

Single-Chip CMOS construction Single-Chip Wide operating voltage range : VDO = 3 to 12 Volts

. Built-in RC oscillator

n Easy interface with RF, Infrared(lR) and Ultrasonic

transmission media

n Tri-state(0, 1, open) address codes, some of address

selected by jump wire

use 5 % resistor)

The UM3758 series are

fabricated in CMOS structure for low power encoder/decoder for higher security.

Most ing 3 = series provide 4 to 8 data bits for controlling.

They are enhanced for new

to provide many more combinations

are achieved by

combinations. Some

programmable encoder

provid-

of this

codes used as data by mask

Internal address code is

different ccdes at most Decoder has 8-bit latch data Series

n

According to the following information, The nal address biis, 18

for the address

the successive two matched address codes will generate

a low pulse. If there were any data bits, the

will latch these data bis at the corresponding pins

for controlling.

for various applications

pin outcompatibleto UM3750

be assigned by customer in

higher

and confidentialii. Whenever

of transmitter transmits, the

or as internal addresses

ie 3

387,428, 489

and 12

UM3758 Series

Power Supply Voltage . . . . . . . . . .-0.3V to

Operating Temperature . . . . . . . .

Storage Temperature (Tstg) . . . . .

to

to 150°C

Apply Voltage on any Pin . . . . . . . . . . . . . .

(TA = 25°C ,

Parameter

Operating voltage

0.3

= 9 Volts ,

+ 0.3

= OV unless otherwise specified)

Symbol

Min.

3.0 Operating current Schmitt Trigger input

Vsh

6

level Other pins input

level Output pin logic

level

Vih Vil

Voh Vol

8.5

0

8.5

0

DATA output current HIGH level LOW level

lohd lold

9

Stresses above those listed under “Absolute Maximum Ratings’ may

permanent darnage to the device. These are stress ratings only. Functional Operation of this device at these or any other conditions above those indicated in the operational sections of this specification is not implied and exposure to absolute

TYP.

Max.

12

1.2

2 9

0.5 9

1

Unit

V

mA

V V

V v

Conditions

HIGH

VDD = 12V mA mA

Voh = 6V

Vol = 6V

Series

Parameter Symbol Min.

HIGH level LOW level

Operating frequency

loht

F

UM3758 UM3758

1

2

Pin Number

1

UM37584

UM3758

1

35

Designation

Al

A2

15

Max.

160

Unit ,

mA mA

KHz

Descripti.on

Address select line and open

Address select line 2 is tri-state indicated as 0, 1 and open

is tri-state indicated as 0, 1

Conditions

=

Voh

6V

Vol

= 6V

+ 15%

of external

3

4

5

6

10

11

2

3

4

5

7

8

9

6

7

8

2

3 A4

4 A5

5

6

A3

A6

A7

A8

and open

Address select line 3 is tri-state indicated as 0, 1

and open

Address and open

Address select line

and open

Address and open

Address select line 9 is tri-state indicated as 0, 1

Address select line 10 is tri-state indicated as 0, 1

Address select line 11 is tri-state indicated as 0, 1

select

line

line 8

4 is

5 is

6 is

7

is

tri-state

indicated as

indicated

as

0,

1

UM3758

Pin Number

UM3758 UM3758 UM3758

-12OA

12

9

10

11

13

14

12

13

16

10

11

Designation

Al2

NC

Al3

Al4

Al5

Al6

Description

Address select line 12 is tri-state indicated as 0, 1 and open

No connection

Noconnection

Address select line 13 is tri-state indicated as 0, 1

and open

Address select line 14 is tri-state indicated as 0, 1

and open

Address select line 15 is tri-state indicated as 0, 1

and open

Address select line 16 is tri-state indicated as 0, 1

and open

17 12

16

19

13

20

21

22

23

15

16

17

24

14

15

17

19

20

Al7

osc

vss

MODE

RXINP

VDD

Address select line 17 is tri-state indicated as 0, 1

and open

Address select line 16 is tri-state indicated as 0, 1

and open

R.C. input pin for

connected from this pin to

pin oscillator. A resistor is

and a capacitor to Vss

The ground pin for UM3756

This pin is used to select transmit or receive mode

MODE MODE

: Encoder mode

Vss : Decoder mode

input pin. Receives waveform from the detect

circuit

In encoder mode, this pin will transmit waveform; in

is OK

The positive power supply of UM3756

4

UM3758 Series

UM3758=108A/B/AM/BM, UM3758-084A/B

Designation

1

5

6

UM3758-084AM/BM

Description

Address select line 1 is tri-state indicated as 0, 1 and open

Address select line 2 is tri-state indicated as 0, 1 and open

Address select line 3 is tri-state indicated as 0, 1 and open

Address select line 4 is tri-state indicated as 0, 1 and open

Address select line 5 is tri-state indicated as 0, 1 and open

Address select line 6 is triistate indicated as 0, 1 and open

10

11

12

7

a

9

a

9

Al0

Address select line 7 is tri-state indicated as 0, 1 and open

Address select line 8 is tri-state indicated as 0, 1 and open

Address and open

Address select line 10 is tri-state indicated as and open

Data output pin 1, states are either HIGH (1 or open)

or LOW (0)

Data output pin 2, states are either HIGH (1 or open) or LOW (0)

line 9 is tri-state indicated as 0, 1

.

Pin Number

UM3758 UM3758

13

14

15

16

17

19

10

11

12

13

10

11

12

13

14

15

Designation

NC

D3

D4

D5

D6

D7

osc

Description

Noconnection

No connection

Data output pin 3, states are either HIGH (1 or open)

or LOW (0)

Data output pin 4, states are either HIGH (1 or open) or LOW (0)

Data output pin 5, states are either HIGH (1 or open) or LOW (0)

Data output pin 6, states are either HIGH (1 or open)

or LOW (0)

Data output pin 7, states are either HIGH (1 or open)

or LOW (0)

Data output pin 6, states are either HIGH (1 or open) or LOW (0)

R.C. input pin for connected from this pin to VDO and a capacitor to Vss

pin oscillator. A resistor is

20

21

22 16

23

24

15

17

14

16

17

19

20

vss

MODE

RXINP

OUT

VDD

The ground pin for UM3756

This pin is used to select transmit or receive modes

MODE MODE

circuit In encoder mode, this pin will transmit waveform; in

rison is OK

The positive power supply of UM3756

VDO : Encoder mode Vss : Decoder mode

input pin. Receives waveform from the detect

to LOW if compa-

-

em----

UM3758

General

The operating mode of the UM3756 series is controlled by the MODE pin. When the ‘MODE’ pin is connected to VDO the circuit will automatically switch to encoder mode, then ‘TX/RX OUT’ pin ‘RX

pin act as an idle pin. When ‘MODE’ pin is

as data out pin and

connected to Vss the circuit will switch to decoder mode, then ‘TX/RX OUT” pin will switch to LOW if comparison is

and

otherwise this pin will keep HIGH,

receives waveform from detect circuit.

Mode

The encoder mode is selected by connecting “MODE pin to The transmit sequence is initiated by the power nection and continuously transmits till power down.

Part Number

Address

Bits

Address

Combinations

(see Fig.

consecutive long

A logic zero is encoded as two

a logic one as two con- secutive short pulses and an open as a long pulse followed by a short pulse. is encoded into logic is the

as the address pulse (see Fig. the state of data pin is either one or is one when connected to

transmitted data bit

or one and the data pulse

ie.,

The data

or open and

when

connected to Vss.

The UM3756160A samples the 18 bit tri-state address

and encodes this parallel address data for trans- mitting. These 16 address pins may

three states (0, 1, open) allowing 3

possible combinations then

UM3758120A provides

in either of

address and allows 3 = 531,441 possible

binations.

The UM37561

and

provide address

and data bits, as described in Table 1.

Data Bits

Data

Combinations

10

a 6,561

59,049

4

256

16

Table 1

Decoder Mode

The decoder mode is selected by connecting “MODE” pin

to vss.

The decoder receives the serial data from the detect circuit and outputs the comparison result or data, if

(ex. UM375&106A/B) are assumed to be address bi. If the address bits

the address bits from detect circuit, the next eight data bits are stored and

to the last valid data stored. When the

it is valid. The received data may inolude two types

without data and with data.

must

again, and if it does, the data bits are

against the previous stored data biis. If

For decoder without data

such as

and

the two words (eight bits data

of data

the data is transferred to the output data pins

received; if two successive address words address bis of switch to LOW and

the “TX/RX OUT” pin will

successive unmatched address

the

words will cause ‘TX/RX OUT” pin to return to HIGH

(see Fig. 3-l).

For decoder with data IC, such as UM375&106A/B and

D2 to pins will switches to HIGH; for will

(see Fig. 3-2). Although the address bits

state (0, 1,

either one or

If the decoder is momentary type, the data

the data till the ‘TX/RX OUT’ pin

decoder, the data pins

the data

the next valid data appears

open), the data information must be

An open state will be decoded as

tri-

a logic one. The above table (Table 1) also describes ___

..

examined bit by bi as received. The first 10 bits

these (decoder with data).

------

--

Tri-State Encoded Pulses

UM3758

Fig.

10.- t

Decoder Mode (without data) :

10.

Fig. 2

Fig.

3 -1

UM3758

Decoder Mode (with data) :

OUT

UM3758 Operation Flowchart (without data bit)

RDDRESS

Fig. 3 -2

WITCH

---

-m-m-

----d

UM3758 Series

UM3758 Operation

(with data bit)

* Note :

Type

For MOMENTARY Type

* Address MISMATCH INCLUDES

Keep current data All Data fall to LOW

NO SIGNAL IN

UM3758 Series

U

24

PF

23

U

(A)

Use Three-Contact Pushbutton

Note: ETD

ETD

8-Pin Tri-State DIP switch made by EXCEL CELL ELECTRONIC CO., LTD. IN TAIWAN R.O.C.

lC-Pin Tri-State DIP switch made by EXCEL CELL ELECTRONIC CO., LTD. IN TAIWAN R.O.C.

Q

Application Circuits (Continued)

(B) Use Normal Two-Contact Pushbutton

1 Appiication Circuit with Data Bit High to Low

UM3758 Series

c

PF

,

(B)

2 Application Circuit with Data Bit Lowto High

AS

LON

SN1

1

12

:

UHICE

UM3758

Part No. Addresses

18

UM37581 08A

10

12

U

8

Data

0

8

0

4

4 LATCHED

4

Data Output Type

IATCHED

MOMENTARY

LATCHED

MOMENTARY

24L DIP

24L BOP

24L DIP

24L

24L DIP

24L

18L DIP

20L

18LDIP

SOP

13

UM3758 Series

Symbol

A

B

Dimensions in

0.210 Max. 5.33

0.010 Min. 0.25 Min.

0.018

-0.002

Dimensions in mm

3.94

0.46 +O.lO

unit :

-0.05

0.010 +

-0.002

E

Note:

1. The max value of dlmenson D includes end flash

2. The dimenslon

3. The dimension S

4. All dimensions are based

1 250TYP

0.655~0035

0.090 Max

doesn’t include

end flash.

14

British

1.52

0.25

fins.

-0.05

2.54r0.25

16 64+0.69

2.29 Max.

UM3758 Series

Symbol

A

Dimensions in

0.110 Max.

Dimensions in mm

2.79 Max.

unit :

D

F

HE

S Y

Note:

The max value of dimension

2. The dimension E doesn’t include

3. The dimension el reference only.

4. The dimension S includes end flash.

5. All dimensions are based on British

0 295+0.010

0.050

0.006

0.370 NOM

036+0.008

0.055

0.006

0.040 Max.

0.006 Max.

for PC Board surface mount pad

7.49

0.25

9.40 NOM

10.31

0.91

1.02 Max.

0.15 Max.

includes end flash.

UM3758 Series

Plane

Dimensions in

0.175 Max.

0.010 Min. 0.25 Min.

0

Dimensions in mm

4.45 Max.

E

0.018 +

0.002

-0.002

0.002

0.9OOTYP

010 2.54

L

0.345 + 0.035

S

Note:

1. The max vaiue of dimensloq

2. The dimenslon Et doesn’t Include

3. The dimension

4. All dimensions are based on British

0.055 Max.

includes end flash.

16

0.46

-0.05

1.52

-0.05

0.25

includes end flash.

7.62

3.30i0.25

1.40 Max.

0.25

0.05

UM3758

DETAIL F

unit :

SEE DETAIL F

Symbol

A Al A2

b

D

Dimensions in

0.106 Max

0.004 Min

0.092 +

0.004

0.016

0.002

0.010

0.002

0.504 TYP (0.524 Max)

0.055

0.008

0.042 Max

0.006 Max.

Dimensions in mm

2.69 Max

0.10 Min

0.41

-0.05

0.25

-0.05

12.80 TYP (13.31

1.40 *0.20

1.07 Max

0.15 Max

1

Note:

1. The max value of dimension D includes end flash.

2. The dimensions E doesn’t include

3. The reference oniy.

4. The

5. All dimensions are based on British

el is for PC Board surface mount pad

S includes end flash

fins.

UM3758 Series

The information appearing in this publication is believed to be accurate. Integrated circuits sold by UMC

are covered by the warranty and patent indemnification provisions stipulated in the terms of sale only. UMC makes no warranty, expressed, statutory, implied or by description regarding the information in this publication or regarding the freedom of the described chip from patent infringement. Furthermore, UMC makes no warranty of merchantability or fitness for any purpose. UMC reserves the right to halt

tion or alter specifications and

verify that the data sheets and other information in this publication are current before placing

orders.

require extended temperature range, unusual environmental requirements, or high reliability applications, e.g. without additional processing by UMC for such applications. in this document are for reference purposes only.

UMC has no sales or Service functions in the U.S.A. and therefore does not intend to sell its products in this market.

at any time without

Accordingly, the reader is cautioned

are specifically not recommended

Also, please note that Application Circuits