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MIC5891 Datasheet(PDF) 1 Page - Micrel Semiconductor

Part No. MIC5891
Description  8-Bit Serial-Input Latched Source Driver
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC5891 Datasheet(HTML) 1 Page - Micrel Semiconductor

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7-54
December 1997
MIC5891
Micrel
MIC5891
Features
High-voltage, high-current outputs
Output transient protection diodes
CMOS-, PMOS-, NMOS-, and TTL-compatible inputs
5MHz typical data input rate
Low-power CMOS latches
Applications
Alphanumeric and bar graph displays
LED and incandescent displays
Relay and solenoid drivers
Other high-power loads
General Description
The MIC5891 latched driver is a high-voltage, high current
integrated circuit comprised of eight CMOS data latches,
CMOS control circuitry for the common STROBE and OUTPUT
ENABLE, and bipolar Darlington transistor drivers for each
latch.
Bipolar/MOS construction provides extremely low power
latches with maximum interface flexibility.
The MIC5891 will typically operate at 5MHz with a 5V logic
supply.
The CMOS inputs are compatible with standard CMOS,
PMOS, and NMOS logic levels. TTL circuits may be used with
appropriate pull-up resistors to ensure a proper logic-high
input.
A CMOS serial data output allows additional drivers to be
cascaded when more than 8 bits are required.
The MIC5891 has open-emitter outputs with suppression
diodes for protection against inductive load transients. The
output transistors are capable of sourcing 500mA and will
sustain at least 35V in the on-state.
Simultaneous operation of all drivers at maximum rated
current requires a reduction in duty cycle due to package
power limitations. Outputs may be paralleled for higher load
current capability.
The MIC5891 is available in a 16-pin plastic DIP package (N)
and 16-pin wide SOIC package (WM).
8-Bit Serial-Input Latched Source Driver
STROBE
4
SERIAL
DATA IN
3
CLOCK
2
GROUND
1
OUT3 7
OUT2 6
OUT1 5
OUT4 8
LOAD SUPPLY
13
OUTPUT
ENABLE
14
LOGIC SUPPLY
15
SERIAL
DATA OUT
16
OUT6
10
OUT7
11
OUT8
12
OUT5
9
VBB
VDD
OE
SHIFT
REGISTER
LATCHES
Functional Diagram
Pin Configurations
OUT1 OUT2
OUT3 OUT4 OUT5
OUT6 OUT7 OUT8
SERIAL
DATA OUT
OUTPUT
ENABLE
CLOCK
SERIAL
DATA IN
STROBE
GROUND
8-BIT SERIAL PARALLEL SHIFT REGISTER
LATCHES
MOS
BIPOLAR
Part Number
Temperature Range
Package
MIC5891BN
–40
°C to +85°C
16-Pin Plastic DIP
MIC5891BWM
–40
°C to +85°C
16-pin Wide SOIC
Ordering Information


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