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SN74AHC16540 Datasheet Preview

SN74AHC16540 Datasheet

16-BIT BUFFERS/DRIVERS

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SN54AHC16540, SN74AHC16540
16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCLS331F – 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 VCC
D Distributed VCC 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
These 16-bit buffers and bus drivers provide a
high-performance bus interface for wide data
paths.
The 3-state control gate is a 2-input AND gate with
active-low inputs so that if either output-enable
(OE1 or OE2) input is high, all corresponding
outputs are in the high-impedance state.
SN54AHC16540 . . . WD PACKAGE
SN74AHC16540 . . . DGG, DGV, OR DL PACKAGE
(TOP VIEW)
1OE1
1Y1
1Y2
GND
1Y3
1Y4
VCC
1Y5
1Y6
GND
1Y7
1Y8
2Y1
2Y2
GND
2Y3
2Y4
VCC
2Y5
2Y6
GND
2Y7
2Y8
2OE1
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 1OE2
47 1A1
46 1A2
45 GND
44 1A3
43 1A4
42 VCC
41 1A5
40 1A6
39 GND
38 1A7
37 1A8
36 2A1
35 2A2
34 GND
33 2A3
32 2A4
31 VCC
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 VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN54AHC16540 is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74AHC16540 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
(each 8-bit buffer/driver)
INPUTS
OE1 OE2 A
OUTPUT
Y
LLL
H
L LH
L
HXX
Z
XHX
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.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 2000, Texas Instruments Incorporated
1




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SN74AHC16540 Datasheet Preview

SN74AHC16540 Datasheet

16-BIT BUFFERS/DRIVERS

No Preview Available !

SN54AHC16540, SN74AHC16540
16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCLS331F – MARCH 1996 – REVISED JANUARY 2000
logic symbol
1OE1
1OE2
2OE1
2OE2
1
48
24
25
&
EN1
&
EN2
47
1A1
46
1A2
44
1A3
43
1A4
41
1A5
40
1A6
38
1A7
37
1A8
36
2A1
35
2A2
33
2A3
32
2A4
30
2A5
29
2A6
27
2A7
26
2A8
11
12
2
1Y1
3
1Y2
5
1Y3
6
1Y4
8
1Y5
9
1Y6
11
1Y7
12
1Y8
13
2Y1
14
2Y2
16
2Y3
17
2Y4
19
2Y5
20
2Y6
22
2Y7
23
2Y8
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
logic diagram (positive logic)
1OE1 1
1OE2 48
24
2OE1
2OE2 25
1A1 47
2 1Y1
36
2A1
13 2Y1
To Seven Other Channels
To Seven Other Channels
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Part Number SN74AHC16540
Description 16-BIT BUFFERS/DRIVERS
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