SGS Thomson Microelectronics ST26C32ABTR, ST26C32ABN, ST26C32ABDR, ST26C32ABD Datasheet

ST26C32A

CMOS QUAD 3-STATE

DIFFERENTIAL LINERECEIVER



April 2000

■ CMOSDESIGNFORLOW POWER

■ ±

02VSENSIVITYOVERINPUTCOMMON

MODEVOLTAGERANGE

■ TYPICAL PROPAGATIONDALAYS:19ns

■

TYPICAL INPUTHYSTERESIS:60mV

■ INPUTWILLNOT LOADLINEWHENV

CC

=0V

■

MEETSTHEREQUIREMENTSOFEIA
STANDARDRS-422,RS-423

■ 3-STATEOUTPUTSFORCONNECTIONTO

SYSTEMBUSES

■ AVAILABLEIN SURF AC EMOUNT

DESCRIPTION

The ST26C32A is a quad differential line receiver
designed to meet the RS-422, RS-423 standards
for balanced and unbalanced digital data
trasmission, while retaining the low power
characteristics of CMOS. The ST26C32A has an
input sensivity of 200mV over the common mode
input voltage range of±7V. The ST26C32A
features internal pull-up and pull-down resistors

ORDERCODES

Typ e Temp erature

Range

Packag e Commen ts

ST26C32ABN -40 to 85

o

C DIP-16 25 parts per tube / 40 tube per box

ST26C32ABD -40 to 85

o

C SO-16 (Tube) 50 parts per tube / 20 tube per box

ST26C32ABDR -40 to 85

o

C SO-16 (Tape & Reel) 2500 parts per reel

ST26C32ABTR -40 to 85

o

C TSSOP16 (Tape & Reel) 2500 parts per reel

which prevent output oscillation on unused
channels. The ST26C32A provides an enable
and disable function to all four receivers and
features 3-STATE output with 6mA source and
sinkcapability.

SOPDIP TSSOP

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PIN CONFIGURATION

PIN DESCRIPTION

PIN N o SYM BO L NAM E AND FUNC T I O N

1A

IN1

INPUT A1

2A

IN2

INPUT A2

3A

OUT

Channel A Output
4 EN ENABLE
5B

OUT

Channel B Output
6B

IN2

INPUT B2
7B

IN1

INPUT B1
8 GND Ground
9C

IN1

INPUT C1

10 C

IN2

INPUT C2

11 C

OUT

Channel C Output

12 EN ENABLE
13 D

OUT

Channel D Output

14 D

IN2

INPUT D2

15 D

IN1

INPUT D1

16 V

CC

Supply Voltage

TRUTH TABLE

ENABLE E NABLE INPUT OUTPUT

LHXZ

All other combinations of enableinputs V

ID

≥ V

TH(MAX)

H

V

ID

≤

V

TH(MIN)

L

Open H

L=Low Voltage State
H=HighLogicState
X=Don’t Care
Z=High Impedance

ST26C32A

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ABSOLUTE MAXIMUM RATINGS

(Note 1, 2)

Symb o l Para met er Val u e Unit

V

CC

Supply Voltage 7 V

V

CM

Input Common Mode Range

±

14 V

V

DIFF

Differential Input Voltage

±

14 V

V

IN

Enable Input Voltage 7 V

I

OMAX

Maximum Current per Output ± 25 mA

T

stg

Storage Temperature Range -65 to +150

o

C

Note1: Absolute Maximum Ratings are those values beyond which thesafety of the device cannot be guaranteed. They are notmeant to imply that the
device should be operated at these limits. Thetableof electrical characteristics provide conditions foractual device operation.
Note2:Unlessotherwisespecified,allvoltagearereferenced toground.

RECOMMENDEDOPERATING CONDITIONS

Symbol Parameter Value Unit

V

CC

Supply Voltage 4.5 to 5.5 V

T

A

Operating Temperature Range -40 to +85

o

C

t

r,tf

Maximum Enable Input Rise or Fall Times 500 ns

ELECTRICALCHARACTERISTICS (VCC=5V±10% unless otherwise specified,See Note 1)

Symbol Parameter Test Conditio ns Value Un it

Min. Typ. Max.

V

TH

Minimum Differential Input
Voltage

V

OUT=VOH

or VOL,-7V<VCM< 7V -200 35 200 mV

R

IN

Input Resistance VIN= -7V, 7V Other Input = GND 5 6.8 10 K

Ω

I

IN

Input Current VIN= 10V Other Input = GND 1.1 1.5 mA

V

IN

= -10V Other Input = GND -2 -2.5

V

OH

High Level Output Voltage V

DIFF

=1V, I

OUT

= -6mA 3.8 4.2 V

V

OL

Low Level Output Voltage V

DIFF

=-1V, I

OUT

= +6mA 0.2 0.3 V

V

IH

Minimum Enable High Input
Level Voltage

2V

V

IL

Maximum Enable Low Input
Level Voltage

0.8 V

I

OZ

3-STATE Output Leakage
Current

V

OUT=VCC

or GND

ENABLE = V

IL

ENABLE= V

IH

±0.5 ±5.0 µA

I

I

Maximum Enable Input
Current

VIN=VCCor GND ±1.0 µA

I

CC

Quiescent Power Supply
Current

VCC=Max, V

(DIFF)

=1V 16 23 mA

V

HYST

Input Hysteresis VCM=0V 60 mV

Note1:Unlessotherwisespecified.min/maxlimitsapplyacrosstherecommended operatingtemperature range.
AlltypicalaregivenforV

CC

=5VandTa=25oC

ST26C32A

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