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74ABT16245A Datasheet

  • 74ABT16245A

  • 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

  • 13頁

  • TI

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SN54ABT16245A, SN74ABT16245A
16-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
www.ti.com
SCBS300F 鈥?MARCH 1994 鈥?REVISED JULY 2005
FEATURES
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Members of the Texas Instruments
Widebus鈩?Family
State-of-the-Art EPIC-IIB鈩?BiCMOS Design
Significantly Reduces Power Dissipation
Typical V
OLP
(Output Ground Bounce) <1 V at
V
CC
= 5 V, T
A
= 25擄C
High-Impedance State During Power Up and
Power Down
Distributed V
CC
and GND Pin Configuration
Minimizes High-Speed Switching Noise
Flow-Through Architecture Optimizes PCB
Layout
High-Drive Outputs (鈥?2-mA I
OH
, 64-mA I
OL
)
Latch-Up Performance Exceeds 500 mA Per
JESD 70
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
Package Options Includes Plastic Thin Very
Small-Outline (DGV), Shrink Small-Outline
(DL), and Thin Shrink Small-Outline (DGG)
Packages and 380-mil Fine-Pitch Ceramic
(WD) Flat Package Using 25-mil
Center-to-Center Spacings
SN54ABT16245A . . . WD PACKAGE
SN74ABT16245A . . . DGG, DGV, OR DL PACKAGE
(TOP VIEW)
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1DIR
1B1
1B2
GND
1B3
1B4
V
CC
1B5
1B6
GND
1B7
1B8
2B1
2B2
GND
2B3
2B4
V
CC
2B5
2B6
GND
2B7
2B8
2DIR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1OE
1A1
1A2
GND
1A3
1A4
V
CC
1A5
1A6
GND
1A7
1A8
2A1
2A2
GND
2A3
2A4
V
CC
2A5
2A6
GND
2A7
2A8
2OE
DESCRIPTION
The 'ABT16245A devices are 16-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 two 8-bit transceviers or one 16-bit transceiver. They allow data transmission from
the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR)
input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated.
When V
CC
is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down.
However, to ensure the high-impendance state above 2.1 V, OE should be tied to V
CC
through a pullup resistor;
the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN54ABT16245A is characterized for operation over the full military temperature range of 鈥?5擄C to 125擄C.
The SN74ABT16245A is characterized for operation from 鈥?0擄C to 85擄C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Widebus, EPIC-IIB are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 漏 1994鈥?005, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are
tested unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.

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