SN54AHCT16240 Datasheet, PDF (1/7 Pages) Texas Instruments – 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS

SN54AHCT16240, SN74AHCT16240
16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCLS333I – MARCH 1996 – REVISED JANUARY 2000
D Members of the Texas Instruments
Widebus ™ Family
D EPIC ™ (Enhanced-Performance Implanted
CMOS) Process
D Inputs Are TTL-Voltage Compatible
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 ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015
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 ’AHCT16240 devices are 16-bit buffers and
line drivers designed specifically to improve the
performance and density of 3-state memory
address drivers, clock drivers, and bus-oriented
receivers and transmitters.
SN54AHCT16240 . . . WD PACKAGE
SN74AHCT16240 . . . DGG, DGV, OR DL PACKAGE
(TOP VIEW)
1OE 1
1Y1 2
1Y2 3
GND 4
1Y3 5
1Y4 6
V_CC 7
2Y1 8
2Y2 9
GND 10
2Y3 11
2Y4 12
3Y1 13
3Y2 14
GND 15
3Y3 16
3Y4 17
V_CC 18
4Y1 19
4Y2 20
GND 21
4Y3 22
4Y4 23
4OE 24
48 2OE
47 1A1
46 1A2
45 GND
44 1A3
43 1A4
42 V_CC
41 2A1
40 2A2
39 GND
38 2A3
37 2A4
36 3A1
35 3A2
34 GND
33 3A3
32 3A4
31 V_CC
30 4A1
29 4A2
28 GND
27 4A3
26 4A4
25 3OE
These devices can be used as four 4-bit buffers,
two 8-bit buffers, or one 16-bit buffer. They provide
inverting outputs and symmetrical active-low
output-enable (OE) inputs.
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 SN54AHCT16240 is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74AHCT16240 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
(each 4-bit buffer/driver)
INPUTS
OE
A
OUTPUT
Y
L
H
L
L
L
H
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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