SN54AHC16541 Datasheet, PDF (1/7 Pages) Texas Instruments – 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS

SN54AHC16541, SN74AHC16541
16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCLS332F – MARCH 1996 – REVISED JANUARY 2000
D Members of the Texas Instruments
Widebus ™ Family
D EPIC™ (Enhanced-Performance Implanted
CMOS) Process
D Operating Range 2-V to 5.5-V V_CC
D Distributed V_CC and GND Pins Minimize
High-Speed Switching Noise
D Flow-Through Architecture Optimizes PCB
Layout
D Latch-Up Performance Exceeds 250 mA Per
JESD 17
D Package Options Include Plastic Shrink
Small-Outline (DL), Thin Shrink
Small-Outline (DGG), and Thin Very
Small-Outline (DGV) Packages and 380-mil
Fine-Pitch Ceramic Flat (WD) Package
Using 25-mil Center-to-Center Spacings
description
The ’AHC16541 devices are noninverting 16-bit
buffers composed of two 8-bit sections with
separate output-enable signals. For either 8-bit
buffer section, the two output-enable (1OE1 and
1OE2 or 2OE1 and 2OE2) inputs must be low for
the corresponding Y outputs to be active. If either
output-enable input is high, the outputs of that
8-bit buffer section are in the high-impedance
state.
SN54AHC16541 . . . WD PACKAGE
SN74AHC16541 . . . DGG, DGV, OR DL PACKAGE
(TOP VIEW)
1OE1 1
1Y1 2
1Y2 3
GND 4
1Y3 5
1Y4 6
V_CC 7
1Y5 8
1Y6 9
GND 10
1Y7 11
1Y8 12
2Y1 13
2Y2 14
GND 15
2Y3 16
2Y4 17
V_CC 18
2Y5 19
2Y6 20
GND 21
2Y7 22
2Y8 23
2OE1 24
48 1OE2
47 1A1
46 1A2
45 GND
44 1A3
43 1A4
42 V_CC
41 1A5
40 1A6
39 GND
38 1A7
37 1A8
36 2A1
35 2A2
34 GND
33 2A3
32 2A4
31 V_CC
30 2A5
29 2A6
28 GND
27 2A7
26 2A8
25 2OE2
To ensure the high-impedance state during power up or power down, 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 SN54AHC16541 is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74AHC16541 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
(each 8-bit buffer/driver)
INPUTS
OE1 OE2 A
OUTPUT
Y
L
L
L
L
L
L
H
H
H
X
X
Z
X
H
X
Z
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.
EPIC and Widebus 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 © 2000, Texas Instruments Incorporated
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