ST 74LVC161284 User Manual

74LVC161284

LOW VOLTAG E HIGH SPEED IEEE1284 TRANSCEIVER

■ HIGH SPEED: t

■ LOW POWER DISSIPATION:

I

=20µA(MAX)atVCC=3.6V TA=85°C

CC

■ TTL COMPATIBLE INPUTS

V

=2V (MIN) VIL=0.8(MAX)

IH

■ OPERATING VOLTAGE RANGE:

V

(OPR) = 3.0V to 3.6V

CC

■ A PORT HAVE STANDARD 4mA TOTEM

= 9ns (MAX .) at VCC=3V

PD

POLE OUTPUT

■ B PORT HIGH DRIVE SOURCE/SINK

CAPABILITY OF 14mA

■ SUPPORTIEEE STD 1284-I (LEVEL 1 TYPE)

AND IEEE STD 1284-II (LEVEL 2 T YPE) FOR BIDIRECTIONAL PARALLEL COMMUNICATIONS BETWEEN PERSONAL COMPUTER ANT PRINTING PERIPHERALS

■ TRANSLATION CAPABILITY ALLOW

OUTPUTSONCABLESIDETOINTERFACE WITH 5 V SIGNAL

■ PULL-UP RESISTOR INTEGRATED ON ALL

OPEN-DRAIN OUTPUT ELIMINATE THE NEED FOR DISCRETE RESISTOR

TSSOP

ORDER CODES

PACKAGE TUBE T & R

TSSOP 74LVC161284TTR

PIN CONNECTION

■ REPLACE THE FUNCTION OF TWO

74LVC1284 DEVICES

DESCRIPTION

The 74LVC161284 contains eight high speed non inverting bidirectional buf fers and eleven control/ status non-inverting buffers with open drain outputs fabricated in silicon gate C

2

MOS technology. It’s intended to provide a standard signaling m ethod for a bi-direction parallel peripheral in an Extended Capabilities Port Mode (ECP). The HD (Active HIGH) input pin enables the Cable port to s witch from Open Drain to a high drive tot em pole output, capable o f sourcing 14mA on all thirteen buffer and 84mA on PERI LOGIC OUTPUT buffer. The DIR input dete rmin es the direction of data flow on the bidirectional buffers. DIR (Active HIGH) enables data flow from A port to B port. DIR (Active LOW) enables data flow from B port to A port. It is available in the commercial temperature range.

1/11May 2003

74LVC161284

LOGIC DIAGRAM

NOTE A: The PMOS transistors prevent backdriving current from the signal pins to V NOTE B: The PMOS transistor prevents backdriving current from the signal pins to V

PMOS transistor is turned off when the associated driver is in the low state.

CC/CABLE

when V when V

PIN DESCRIPTION

PIN No SYMBOL NAME AND FUNCTION

1 HD High Drive Enable Input

2, 3, 4, 5, 6 A9 to A13 Side A Input

8, 9, 11, 12, 13, 14, 16, 17 A1 to A8 Side A Input or Output

19

20, 21, 22, 23 A14 to A17 Side A Output

24 25

29, 28, 27, 26 C14 to C17 Side Cable Output

30

41, 40, 38, 37, 36, 35, 33, 32 B1 to B8 Side Cable Input or Output

47, 46, 45, 44, 43 Y9 to Y13 Side Cable Output

48 DIR Direction Control Input

10, 15, 34, 39 GND Ground (0V)

7, 18

31, 42

PLI

HLO

HLI

PLO

V

CC

V

CC/CABLE

Peripheral Logic Input

Host Logic Output Host Logic Input

Peripheral Logic Output

Positive Supply Voltage Cable Power Supply

CC/CABLE

is open or at GND. The is open or at GND.

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TRUTH TABLE

74LVC161284

INPUT

OUTPUT OUTPUT

DIR HD

LL

B1-B8 Data to A1-A8

A9-A13 Data to Y9-Y13

LH

HL

C14-C17 Data to C14-C17

A1-A8 Data to B1-B8

A9-A13 Data to Y9-Y13

HH

C14-C17 Data to C14-C17

Y9-Y13 and PLO Open

Drain

Y9-Y13 and PLO Totem

Pole

B1-B8 Y9-Y13 and PLO

Open Drain

B1-B8 Y9-Y13 and PLO

Totem Pole

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

CCcable

V

V V V V

V

OBp

I

OK

I

or I

I

CC

T

Absolute Maximum Rating are those value beyond which damage to the device may occur. Functional operation under these condition is not implied

Supply Voltage

CC

Cable Supply Voltage (must be ≥ VCC) DC Input Voltage A1-A13, PLIN, DIR, HD

IA

DC Input Voltage B1-B8, C14-C17, HL

IB

DC Input Voltage B1-B8, C14-C17, HLIN(40ns transient)

IBp

DC Output Voltage A1-A8, A14-A17, HL

OA

DC Output Voltage B1-B8, Y9-Y13, PL

OB

IN

DC Output Voltage B1-B8, Y9-Y13, PLIN(40ns transient) DC Input Diode Current DIR, HD A9-A13, PLINC14-C17

IK

DC Output Diode Current A1-A8, A14-A17, HL

B1-B8, Y9-Y13, PL

DC Output Current A1-A8, HL

O

B1-B8, Y9-Y13 ± 50 PL

O

PL

O

DC VCCor Ground Current per Supply Pin

GND

Storage Temperature

stg

Lead Temperature (10 sec)

L

=LOW = HIGH

-0.5 to +4.6 V

-0.5 to +7.0 V

-0.5to+VCC+0.5

V

-0.5 to +5.5 V

-2 to +7 V

-0.5to+VCC+0.5

V

-0.5 to +5.5 V

-2 to +7 V

-20 mA

IN

± 50 mA

-50

± 25 mA

84

-50

± 200 mA

-65 to +150 °C 300 °C

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Value Unit

V

CCcable

V V T

Supply Voltage

CC

Cable Supply Voltage Input Voltage 0 to V

I

Open Drain Output Voltage

O

Operating Temperature

op

3.0 to 3.6 V

3.0 to 5.5 V

CC

0 to 5.5 V

-40 to 85 °C

V

3/11

74LVC161284

DC SPECIFICATIONS

Test Condition Value

Symbol Parameter

High Level

V

IH

Input Voltage

Low Level

V

IL

Input Voltage

V

High Level

OH

Output Voltage

An, Bn, PLIN, DIR, HD

HL

IN

An, Bn, PLIN, DIR, HD

HL

IN

An, HL

Bn, Yn 3.0 3.0 Bn, Yn 3.0 4.5 PL 3.15 3.15

V

Low Level

OL

Output Voltage

An, HL

Bn, Yn 3.0 3.0 Bn, Yn 3.0 4.5 PL 3.0 3.0 PL 3.0 4.5

I

Input Current Cn

I

All input except B or C

Quiescent Supply Current

I

CC

High

I

OZ

Impedance

Bn

Output

A1-A8 Open Drain Y Output B, Y output (to GND) B, Y output (to V

An, Bn, PLIN, DIR, HD

HL

IN

B1-B8, Y9-Y13 3.3 5.0 B1-B8, Y9-Y13,

C14-C17

I

OFF

V

Z

R

hys

O

P

Leakage Current

Power Off Leakage Current

Input Hysteresis

Output Impedance

Pull-up Resistance

CC

V

CC

(V)

3.0

3.6

3.0 3.0

3.6 3.6

3.6 5.0

3.6 3.6

3.6 5.0

3.6 3.6

)

CCcable

(V)

3.0

to

5.5

0 5.0 0 5.0

IO=-50µA

=-4mA

I

O

I

=-14mA

O

=-14mA

I

O

=-500µA

I

O

IO=50µA

=4mA

I

O

=14mA

I

O

=14mA

I

O

=84mA

I

O

=84mA

I

O

VI=V

=GND (Pull-up res)

V

I

V

I=VCC

or GND

VI=VCCIO=0

=GND (12xPull-up)

V

I

V

O=VCC

=GND (Pull-up res)

V

O

V

O=VCC

V

=GND (Pull-up res)

O

V

I

or GND

or VO=0to7V

VIor VO=0to7V

3.3 5.0 0.4

3.3 5.0 0.2 V

B=VOH

3.3 5.0

V

B=VOH

CC

-40 to 85 °C

Unit

Min. Max.

2

2.6

0.8

1.6

2.8

2.4

2.0

2.23

3.1

0.2

0.4

0.8

0.77

0.95

0.90 50 µA

-3.5 mA ± 1 µA

0.8

45

mA

20 µA

-3.5 mA

± 20 µA

-3.5 mA

100 µA

10 µA

30 55 Ω

1150 1650 Ω

VCn 2.3

VCn 0.8

V

VCn 3.3 5.0 0.8

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