SN74ALVCH16835 Datasheet, PDF (1/10 Pages) Texas Instruments – 18-BIT UNIVERSAL BUS DRIVER WITH 3-STATE OUTPUTS

D Member of the Texas Instruments
Widebus ™ Family
D EPIC™ (Enhanced-Performance Implanted
CMOS) Submicron Process
D ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
D Latch-Up Performance Exceeds 250 mA Per
JESD 17
D Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
D Package Options Include Plastic Shrink
Small-Outline (DL), Thin Shrink
Small-Outline (DGG), and Thin Very
Small-Outline (DGV) Packages
description
This 18-bit universal bus driver is designed for
1.65-V to 3.6-V V_CC operation.
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)
input is high. The A data is latched if the clock
(CLK) input is held at a high or low logic level. If LE
is low, 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.
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.
Active bus-hold circuitry is provided to hold
unused or floating data inputs at a valid logic level.
The SN74ALVCH16835 is characterized for
operation from –40°C to 85°C.
SN74ALVCH16835
18-BIT UNIVERSAL BUS DRIVER
WITH 3-STATE OUTPUTS
SCES053E – SEPTEMBER 1995 – REVISED FEBRUARY 1999
DGG, DGV, OR DL PACKAGE
(TOP VIEW)
NC 1
NC 2
Y1 3
GND 4
Y2 5
Y3 6
V_CC 7
Y4 8
Y5 9
Y6 10
GND 11
Y7 12
Y8 13
Y9 14
Y10 15
Y11 16
Y12 17
GND 18
Y13 19
Y14 20
Y15 21
V_CC 22
Y16 23
Y17 24
GND 25
Y18 26
OE 27
LE 28
56 GND
55 NC
54 A1
53 GND
52 A2
51 A3
50 V_CC
49 A4
48 A5
47 A6
46 GND
45 A7
44 A8
43 A9
42 A10
41 A11
40 A12
39 GND
38 A13
37 A14
36 A15
35 V_CC
34 A16
33 A17
32 GND
31 A18
30 CLK
29 GND
NC – No internal connection
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
EPIC and Widebus are trademarks of 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.
Copyright © 1999, Texas Instruments Incorporated
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