SN54ABT16827_07 Datasheet, PDF (1/10 Pages) Texas Instruments – 20-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS

D Members of the Texas Instruments
Widebus ™ Family
D State-of-the-Art EPIC-ΙΙB™ BiCMOS Design
Significantly Reduces Power Dissipation
D Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
D Typical V_OLP (Output Ground Bounce) < 1 V
at V_CC = 5 V, T_A = 25°C
D High-Impedance State During Power Up
and Power Down
D Distributed V_CC and GND Pin Configuration
Minimizes High-Speed Switching Noise
D Flow-Through Architecture Optimizes PCB
Layout
D High-Drive Outputs (–32-mA I_OH, 64-mA I_OL)
D Package Options Include Plastic 300-mil
Shrink Small-Outline (DL) Package and
380-mil Fine-Pitch Ceramic Flat (WD)
Package Using 25-mil Center-to-Center
Spacings
description
The ’ABT16827 are noninverting 20-bit buffers
composed of two 10-bit sections with separate
output-enable signals. For either 10-bit buffer
section, the two output-enable (1OE1 and 1OE2
or 2OE1 and 2OE2) inputs must both be low for
the corresponding Y outputs to be active. If either
output-enable input is high, the outputs of that
10-bit buffer section are in the high-impedance
state.
SN54ABT16827, SN74ABT16827
20-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS220C – JUNE 1992 – REVISED MAY 1997
SN54ABT16827 . . . WD PACKAGE
SN74ABT16827 . . . DL PACKAGE
(TOP VIEW)
1OE1 1
1Y1 2
1Y2 3
GND 4
1Y3 5
1Y4 6
V_CC 7
1Y5 8
1Y6 9
1Y7 10
GND 11
1Y8 12
1Y9 13
1Y10 14
2Y1 15
2Y2 16
2Y3 17
GND 18
2Y4 19
2Y5 20
2Y6 21
V_CC 22
2Y7 23
2Y8 24
GND 25
2Y9 26
2Y10 27
2OE1 28
56 1OE2
55 1A1
54 1A2
53 GND
52 1A3
51 1A4
50 V_CC
49 1A5
48 1A6
47 1A7
46 GND
45 1A8
44 1A9
43 1A10
42 2A1
41 2A2
40 2A3
39 GND
38 2A4
37 2A5
36 2A6
35 V_CC
34 2A7
33 2A8
32 GND
31 2A9
30 2A10
29 2OE2
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-impedance 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 SN54ABT16827 is characterized for operation over the full military temperature range of – 55°C to 125°C.
The SN74ABT16827 is characterized for operation from –40°C to 85°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 and EPIC-ΙΙB are trademarks of Texas Instruments Incorporated.
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
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Copyright © 1997, Texas Instruments Incorporated
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