SN54ABT32245, SN74ABT32245
36-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS228C – JUNE 1992 – APRIL 1995
• Members of the Texas Instruments
• Distributed V
and GND Pin Configuration
CC
Widebus+ Family
Minimizes High-Speed Switching Noise
• High-Drive Outputs (–32-mA I
• State-of-the-Art EPIC-ΙΙB BiCMOS Design
,
OH
Significantly Reduces Power Dissipation
64-mA I
)
OL
• Latch-Up Performance Exceeds 500 mA
• Bus-Hold Inputs Eliminate the Need for
Per JEDEC Standard JESD-17
External Pullup Resistors
• Typical V
(Output Ground Bounce)
• Packaged in 100-Pin Plastic Thin Quad
Flat (PZ) Package With 14 × 14-mm Body
Using 0.5-mm Lead Pitch
OLP
< 0.8 V at V
= 5 V, T = 25°C
CC
A
SN74ABT32245 . . . PZ PACKAGE
(TOP VIEW)
1009998 9796 959493 92 9190 89 8887 86 8584 83 8281 8079 7877 76
1A9
2A1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
1B9
2B1
GND
2B2
2B3
2B4
2B5
GND
2B6
2B7
2B8
2B9
GND
2A2
2A3
2A4
2A5
GND
2A6
2A7
2A8
2A9
V
V
CC
CC
3A1
3A2
3A3
3A4
GND
3A5
3A6
3A7
3A8
GND
3A9
4A1
3B1
3B2
3B3
3B4
GND
3B5
3B6
3B7
3B8
GND
3B9
4B1
26 272829 3031 32 33 343536 3738 3940 4142 43 4445 46 474849 50
description
The ′ABT32245 are 36-bit (quad 9-bit) noninverting 3-state transceivers designed for synchronous two-way
communication between data buses. The control-function implementation minimizes external timing
requirements.
These devices can be used as four 9-bit transceivers, two18-bit transceivers, or one 36-bit transceiver. They
allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic
level at the direction-control (DIR) inputs. The output-enable (OE) inputs can be used to disable the device so
that the buses are effectively isolated.
Widebus+ and EPIC-ΙΙB are trademarks of Texas Instruments Incorporated.
Copyright 1995, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265