ST26C31B STMicroelectronics, ST26C31B Datasheet

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ST26C31B

Manufacturer Part Number
ST26C31B
Description
Manufacturer
STMicroelectronics
Datasheet

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Features
Description
The ST26C31B is a quad differential line driver
designed for digital data transmission over
balanced lines and meets all the requirements of
EIA standard RS-422 while retaining the low
power characteristics of CMOS.
The ST26C31B accepts TTL or CMOS input
levels and translates these to RS-422 output
levels. This part uses special outputs circuitry
common to all four drivers. All outputs are
protected against damage due to electrostatic
discharge by diode to V
Table 1.
June 2008
ST26C31BDR
ST26C31BTR
Order codes
TTL input compatible
Typical propagation delay: 6 ns
Typical output skew: 0.5 ns
Output will not load line when V
Meets the requirements of EIA standard
RS-422
Operation from single 5 V supply
3-state outputs for connection to system buses
Low quiescent current
Available in surface mount
ST26C31BN
Device summary
Temperature range
CC
-40 to 85 °C
-40 to 85 °C
-40 to 85 °C
and ground.
CC
= 0 V
CMOS quad 3-state differential line driver
TSSOP16 (tape and reel)
SO-16 (tape and reel)
Rev 8
Package
DIP-16
DIP-16
25 parts per tube / 40 tube per box
TSSOP16
2500 parts per reel
2500 parts per reel
Packaging
ST26C31B
SO-16
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ST26C31B Summary of contents

Page 1

... Low quiescent current ■ Available in surface mount Description The ST26C31B is a quad differential line driver designed for digital data transmission over balanced lines and meets all the requirements of EIA standard RS-422 while retaining the low power characteristics of CMOS. The ST26C31B accepts TTL or CMOS input levels and translates these to RS-422 output levels ...

Page 2

Contents 1 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

Pin configuration Figure 1. Pin connections Table 2. Pin description Pin n° Symbol OUT 3 A OUT OUT 6 B OUT GND ...

Page 4

Table 3. Truth table Enable Enable L H All other combinations of enable inputs Note Low voltage state H = High logic state X = Don’t care Z = High impedance 4/15 Input Output ...

Page 5

Maximum ratings Table 4. Absolute maximum ratings Symbol V Supply voltage input voltage output voltage (high or low state) OUT I Clamp diode current output current per pin OUT I ...

Page 6

Electrical characteristics Table 6. Electrical characteristics (V Symbol Parameter V High level input voltage IH V Low level input voltage IL V High level output voltage OH V Low level output voltage OL V Differential output voltage R T ...

Page 7

Table 7. Switching characteristics (V Symbol Parameter t PLH Propagation delay input to output t PHL (2) Skew t TLH Differential output rise and fall times t THL t Output enable time PZH t Output enable time PZL (3) t ...

Page 8

Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner ...

Page 9

Plastic DIP-16 (0.25) mechanical data mm. Dim. Min. Typ. a1 0.51 B 0.77 b 0 8.5 e 2.54 e3 17. 3.3 Z inch. Max. Min. Typ. 0.020 1.65 0.030 0.020 0.010 20 0.335 ...

Page 10

Dim. Min 0 0. 9 3.8 G 4 10/15 SO-16 mechanical data mm. Typ. Max. 1.75 0.25 1.64 0.46 0.25 0.5 45° ...

Page 11

TSSOP16 mechanical data Dim. Min 0.05 A2 0.8 b 0.19 c 0.09 D 4.9 E 6.2 E1 4.3 e 0.65 BSC K 0° PIN 1 IDENTIFICATION 1 mm. Typ. Max. Min. 1.2 ...

Page 12

Tape & reel SO-16 mechanical data Dim. Min 12 6.45 Bo 10.3 Ko 2.1 Po 3.9 P 7.9 12/15 mm. Typ. Max. Min. 330 13.2 0.504 0.795 2.362 22.4 6.65 0.254 10.5 ...

Page 13

Tape & reel TSSOP16 mechanical data mm. Dim. Min. Typ 12 6.7 Bo 5.3 Ko 1.6 Po 3.9 P 7.9 inch. Max. Min. Typ. 330 13.2 0.504 0.795 2.362 22.4 6.9 0.264 ...

Page 14

Revision history Table 8. Document revision history Date Revision 02-May-2006 7 12-Jun-2008 8 14/15 Changes Order codes updated. Added: Table 1 on page 1. ...

Page 15

... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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