MC3453 Datasheet, PDF (1/6 Pages) Texas Instruments – QUAD LINE DRIVERS WITH COMMON ENABLE

MC3453, MC3553
QUAD LINE DRIVERS WITH COMMON ENABLE
D Similar to a Dual Version of SN55 / 75110A
Line Driver
D Improved Stability Over Supply Voltage and
Temperature Ranges
D Constant-Current Outputs
D High Output Impedance
D High Common-Mode Output Voltage Range
– 3 V to 10 V
D Glitch-Free Power-Up/Power-Down
Operation
D TTL-Input Compatibility
D Common-Enable Circuit
D Designed to Be Interchangeable With
Motorola MC3453 and Military-Temperature-
Range Version of MC3553
SLLS119A – FEBRUARY 1986 – REVISED FEBRUARY 1993
D, J, OR N . . . PACKAGE
(TOP VIEW)
1A 1
1Y 2
1Z 3
2Z 4
2Y 5
ENABLE 6
2A 7
GND 8
16 V_{CC +}
15 4A
14 4Y
13 4Z
12 3Z
11 3Y
10 3A
9 V_{CC –}
FK PACKAGE
(TOP VIEW)
description
The MC3453 and MC3553 feature four line drivers
with a common-enable input. When the ENABLE
input is high, a constant output current is switched
between each pair of output terminals in response
to the logic level at that channel input. When the
ENABLE is low, all channel outputs are
nonconductive (transistors biased to cutoff). This
minimizes loading in party-line systems where a
large number of drivers share the same line.
1Z
2Z
NC
2Y
ENABLE
3 2 1 20 19
4
18
4Y
5
17 ^4Z
6
16 NC
7
15 3Z
8
14 3Y
9 10 11 12 13
NC – No internal connection
The driver outputs have a common-mode voltage
range of – 3 V to 10 V, allowing common-mode
voltages on the line without affecting driver
performance.
All outputs should be maintained within the
recommended common-mode output voltage
range to ensure that the channels do not interact
with each other. To minimize power dissipation, all
unused outputs should be grounded.
FUNCTION TABLE
LOGIC
INPUT
H
L
H
L
ENABLE
INPUT
H
H
L
L
OUTPUT
CURRENT
ZY
On Off
Off On
Off Off
Off Off
L = low logic level, H = high logic level
All inputs are diode clamped and are designed to satisfy TTL-system requirements. The inputs are tested at
2 V for high-logic-level input conditions and 0.8 V for low-logic-level input conditions. These tests ensure 400
mV of noise margin when interfaced with Series 54/74 TTL.
The MC3453 is characterized for operation from 0°C to 70°C. The MC3553 is characterized for operation over
the full military temperature range of – 55°C to 125°C.
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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Copyright © 1993, Texas Instruments Incorporated
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