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ST34C87IP16 Datasheet

  • ST34C87IP16

  • QUAD RS-422 CMOS Differential Line Driver

  • 8頁(yè)

  • EXAR   EXAR

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ST34C87
...the analog plus company
TM
QUAD RS-422 CMOS
Differential Line Driver
June 1997-3
FEATURES
D
Pin-to-Pin Compatible with National DS34C87
D
Low Power CMOS Design
D
Three-State Outputs with Enable Pin
D
Meets the EIA RS-422 Requirements
D
Low Propagation Delays
D
High Speed
GENERAL DESCRIPTION
The ST34C87 is a CMOS quad differential line driver
designed to meet the standard RS-422 requirements and
digital data transmission over balanced lines. To improve
noise margin and output stability for slow changing input
signals, special hysteresis is built in the ST34C87 circuit.
The ST34C87 is a high speed CMOS line driver designed
to operate with MFM / RLL controllers and hard disk
drives as well as RS-422 digital data transmission
applications. ST34C87 is suitable for low power 5V
operation with high input voltage protection devices.
ORDERING INFORMATION
Part No.
ST34C87CP16
ST34C87CF16
ST34C87IP16
ST34C87IF16
Package
16 Lead 300 Mil PDIP
16 Lead 150 Mil JEDEC SOIC
16 Lead 300 Mil PDIP
16 Lead 150 Mil JEDEC SOIC
Operating
Temperature Range
0擄C to +70擄C
0擄C to +70擄C
-40擄C to +85擄C
-40擄C to +85擄C
INPUT A
INPUT D
OUTPUTA+
OUTPUT A-
OUTPUT D+
OUTPUT D-
ENABLE A/B
ENABLE C/D
OUTPUTB-
OUTPUTB+
OUTPUT C-
OUTPUT C+
INPUT B
INPUT C
Figure 1. Block Diagram
Rev. 1.01
E1991
EXAR Corporation, 48720 Kato Road, Fremont, CA 94538
z
(510) 668-7000
z
FAX (510) 668-7017
1

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