SN74ALVC162834
18-BIT UNIVERSAL BUS DRIVER
WITH 3-STATE OUTPUTS
SCES172A – DECEMBER 1998 – REVISED FEBRUARY 1999
DGG, DGV, OR DL PACKAGE
(TOP VIEW)
Member of the Texas Instruments
Widebus Family
EPIC (Enhanced-Performance Implanted
CMOS) Submicron Process
1
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
NC
NC
Y1
GND
Y2
Y3
GND
NC
A1
GND
A2
A3
2
Outputs Have Equivalent 26-Ω Series
Resistors, So No External Resistors Are
Required
3
4
5
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
6
7
V
V
CC
Y4
CC
8
A4
A5
A6
GND
A7
9
Y5
Y6
GND
Y7
Y8
Y9
Y10
Y11
Y12
GND
Y13
Y14
Y15
Latch-Up Performance Exceeds 250 mA Per
JESD 17
10
11
12
13
14
15
16
17
18
19
20
21
22
23
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25
26
27
28
Package Options Include Plastic Shrink
Small-Outline (DL), Thin Shrink
Small-Outline (DGG), and Thin Very
Small-Outline (DGV) Packages
A8
A9
A10
A11
A12
GND
A13
A14
A15
description
This 18-bit universal bus driver is designed for
1.65-V to 3.6-V V operation.
CC
Data flow from A to Y is controlled by the
output-enable (OE) input. The device operates in
the transparent mode when the latch-enable (LE)
inputislow. TheAdataislatchediftheclock(CLK)
input is held at a high or low logic level. If LE is
high, the A data is stored in the latch/flip-flop on
the low-to-high transition of CLK. When OE is
high, the outputs are in the high-impedance state.
V
V
CC
CC
Y16
Y17
GND
Y18
OE
A16
A17
GND
A18
CLK
GND
LE
To ensure the high-impedance state during power
up or power down, OE should be tied to V
CC
NC – No internal connection
through a pullup resistor; the minimum value of
the resistor is determined by the current-sinking
capability of the driver.
The outputs, which are designed to sink up to 12 mA, include equivalent 26-Ω resistors to reduce overshoot
and undershoot.
The SN74ALVC162834 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.
EPIC and Widebus are trademarks of Texas Instruments Incorporated.
Copyright 1999, Texas Instruments Incorporated
PRODUCTION DATA information is 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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POST OFFICE BOX 655303 • DALLAS, TEXAS 75265