ICM7243
Functional Block Diagram
DATA INPUT
D0 - D5
DATA
D LATCHES
CL
Q
D1 8x6
DATA
MEMORY
CLR
CL ADR
D0
6
64 x 17
ROM
(NOTE 1)
17
(Note)
SEGMENT
DRIVERS
SEGMENT
OUTPUTS
SEG x
W R
(Note) CS
CS
CS
ONE
SHOT
8
MODE
A0/SEN
D
CL
SEL
CL
D ADDRESS
3
SEL
8
8
CHARACTER
DRIVERS
CHAR N
CHARACTER
OUTPUTS
LATCHES
SEQUENTIAL
AND
A1/ CLR
MUX
D CL
CONTROL
LATCH
Q
EN CL
SEQUENTIAL
ADDRESS
COUNTER
CLR
3
ADDRESS
MULITPLEXER
MULTIPLEXER
DECODER
A2/DISP FULL
OVERFLOW
3
MULTIPLEX
OSC/ OFF
OSCILLATOR
OSCILLATOR
CHARACTER
MULTIPLEX
COUNTER
INTER-CHARACTER BLANKING
NOTE: ICM7243A has only one CS and no CS.
ICM7243B has 15 Segments.
4
FN3162.4
March 4, 2010
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