MIC5800/5801
Micrel
MIC5800/5801
4/8-Bit Parallel-Input Latched Drivers
General Description
The MIC5800/5801 latched drivers are high-voltage, high-
current integrated circuits comprised of four or eight CMOS
data latches, a bipolar Darlington transistor driver for each
latch, and CMOS control circuitry for the common CLEAR,
STROBE, and OUTPUT ENABLE functions.
The bipolar/MOS combination provides an extremely low-
power latch with maximum interface flexibility. MIC5800
contains four latched drivers; MIC5801 contains eight latched
drivers.
Data input rates are greatly improved in these devices. With
a 5V supply, they will typically operate at better than 5MHz.
With a 12V supply, significantly higher speeds are
obtained.The CMOS inputs are compatible with standard
CMOS, PMOS, and NMOS circuits. TTL or DTL circuits may
require the use of appropriate pull-up resistors. The bipolar
outputs are suitable for use with relays, solenoids, stepping
motors, LED or incandescent displays, and other high-power
loads.Both units have open-collector outputs and integral
diodes for inductive load transient suppression. The output
transistors are capable of sinking 500mA and will sustain at
least 50V in the OFF state. Because of limitations on package
power dissipation, the simultaneous operation of all drivers at
maximum rated current can only be accomplished by a
reduction in duty cycle. Outputs may be paralleled for higher
load current capability.
Features
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4.4MHz Minimum Data Input Rate
High-Voltage, Current Sink Outputs
Output Transient Protection
CMOS, PMOS, NMOS, and TTL Compatible Inputs
Internal Pull-Down Resistors
Low-Power CMOS Latches
Ordering Information
Part Number
MIC5800BN
MIC5800BM
MIC5801BN
5962-8764001WA
1
MIC5801BV
MIC5801BWM
1
Temperature Range
鈥?40掳C to + 85掳C
鈥?40掳C to + 85掳C
鈥?40掳C to +85掳C
鈥?55掳C to +125掳C
鈥?40掳C to + 85掳C
鈥?40掳C to +85掳C
Package
14鈥揚in Plastic DIP
14鈥揚in SOIC
22鈥揚in Plastic DIP
22鈥揚in CERDIP
28鈥揚in PLCC
24鈥揚in SOIC
Standard Military Drawing number for MIC5801AJBQ
7
Functional Diagram
VDD
INn
COMMON
OUTn
STROBE
GND
CLEAR
OUTPUT
ENABLE
COMMON MOS
CONTROL
TYPICAL MOS
LATCH
TYPICAL BIPOLAR
DRIVER
October 1998
7-11
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