ICM7211A Datasheet, PDF (3/9 Pages) Intersil Corporation – 4-Digit, LCD Display Driver

Functional Block Diagrams
D4
SEGMENT OUTPUTS
ICM7211A
ICM7211A
D3
SEGMENT OUTPUTS
D2
SEGMENT OUTPUTS
D1
SEGMENT OUTPUTS
7 WIDE DRIVER
7 WIDE DRIVER
7 WIDE DRIVER
7 WIDE DRIVER
7 WIDE LATCH EN
7 WIDE LATCH EN
7 WIDE LATCH EN
7 WIDE LATCH EN
DATA
INPUTS
DIGIT
SELECT
INPUTS
PROGRAMMABLE
4 TO 7 DECODER
OSCILLATOR
INPUT
ENABLE
DIRECTOR
PROGRAMMABLE
4 TO 7 DECODER
PROGRAMMABLE
4 TO 7 DECODER
OSCILLATOR
19kHz
FREE-RUNNING
÷128
BLACKPLANE
DRIVER
ENABLE
PROGRAMMABLE
4 TO 7 DECODER
BP INPUT/OUTPUT
D4
SEGMENT OUTPUTS
ICM7211AM
D3
SEGMENT OUTPUTS
D2
SEGMENT OUTPUTS
D1
SEGMENT OUTPUTS
7 WIDE DRIVER
7 WIDE DRIVER
7 WIDE DRIVER
7 WIDE DRIVER
7 WIDE LATCH EN
7 WIDE LATCH EN
7 WIDE LATCH EN
7 WIDE LATCH EN
PROGRAMMABLE
4 TO 7 DECODER
PROGRAMMABLE
4 TO 7 DECODER
PROGRAMMABLE
4 TO 7 DECODER
DATA
INPUTS
2-BIT
DIGIT
ADRESS
INPUT
CHIP
SELECT 1
CHIP
SELECT 2
4-BIT
LATCH
ENABLE
2-BIT
LATCH
ENABLE
2 TO 4
DECODER
ONE
SHOT
OSCILLATOR
INPUT
ENABLE
DIRECTOR
OSCILLATOR
19kHz
FREE-RUNNING
÷128
BLACKPLANE
DRIVER
ENABLE
PROGRAMMABLE
4 TO 7 DECODER
BP INPUT/OUTPUT
3