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74ABT16500CDL View Datasheet(PDF) - Philips Electronics

Part Name
Description
View to exact match
74ABT16500CDL
Philips
Philips Electronics Philips
74ABT16500CDL Datasheet PDF : 12 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
Philips Semiconductors
18-bit universal bus transceiver (3-State)
Product specification
74ABT16500C
74ABTH16500C
PIN DESCRIPTION
PIN NUMBER
1
27
2, 28
55,30
3, 5, 6, 8, 9, 10, 12, 13, 14, 15,
16, 17, 19, 20, 21, 23, 24, 26
54, 52, 51, 49, 48, 47, 45, 44, 43,
42, 41, 40, 38, 37, 36, 34, 33, 31
4, 11, 18, 25, 32, 39, 46, 53
7, 22, 35, 50
SYMBOL
OEAB
OEBA
LEAB/LEBA
CPAB/CPBA
A0-A17
B0-B17
GND
VCC
NAME AND FUNCTION
A-to-B Output enable input
B-to-A Output enable input (active low)
A-to-B/B-to-A Latch enable input
A-to-B/B-to-A Clock input (active falling edge)
Data inputs/outputs (A side)
Data inputs/outputs (B side)
Ground (0V)
Positive supply voltage
FUNCTION TABLE
INPUTS
OEAB
LEAB
CPAB
An
Internal
Registers
OUTPUTS
Bn
L
H
X
X
X
Z
L
X
h
H
Z
L
X
I
L
Z
L
L
H or L
X
NC
Z
L
L
h
H
Z
L
L
I
L
Z
H
H
X
H
H
H
H
H
X
L
L
L
H
X
h
H
H
H
X
I
L
L
H
L
h
H
H
H
L
I
L
L
H
L
H or L
X
H
H
H
L
H or L
X
L
L
NOTE: A-to-B data flow is shown; B-to-A flow is similar but uses OEBA, LEBA, and CPBA.
H = High voltage level
h = High voltage level one set-up time prior to the Enable or Clock transition
L = Low voltage level
I = Low voltage level one set-up time prior to the Enable or Clock transition
NC= No Change
X = Don’t care
Z = High Impedance “off ” state
= High-to-Low Enable or Clock transition
OPERATING MODE
Disabled
Disabled, Latch data
Disabled, Hold data
Disabled, Clock data
Transparent
Latch data & display
Clock data & display
Hold data & display
1998 Feb 27
4
 

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