ICM7231 Просмотр технического описания (PDF) - Intersil
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ICM7231 Datasheet PDF : 16 Pages
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Functional Block Diagrams
D8
D7
D6
D5
ICM7231, ICM7232
ICM7231
D4
D3
D2
D1
SEGMENT
LINE
DRIVERS
3 WIDE
OUTPUT
LATCHES
9 WIDE
9
9
9
9
DATA
DECODER
DATA INPUT EN
LATCHES
AN2 BD1 BD3
AN1 BD0 BD2
DATA INPUTS
9
9
9
DIGIT
ADDRESS
EN
DECODER
ADDRESS
INPUT
EN
LATCHES
A0 A1 A2
ADDRESS INPUTS
9
ONE
SHOT
CS
NOTE: See Figure 13 for display segment connections.
VDD
ON CHIP
VH DISPLAY
VOLTAGE
LEVEL
VL GENERATOR
VDISP
PIN 2 (INPUT)
BP1
COMMON
LINE
BP2
DRIVERS
BP3
DISPLAY
TIMING
GENERATOR
9-21
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