lCM7217BlJl Intersil Corporation, lCM7217BlJl Datasheet - Page 5
lCM7217BlJl
Manufacturer Part Number
lCM7217BlJl
Description
4-digit Led Display, Programmable Up/down Counter
Manufacturer
Intersil Corporation
Datasheet
1.LCM7217BLJL.pdf
(20 pages)
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Timing Waveforms
INTERNAL OSC
STROBES)
INTERNAL
INTERNAL
(BCD AND
SEGMENT
(COMMON
ENABLE)
OUTPUT
ANODE
SCAN
DIGIT
D4
D3
D2
D1
D4
D3
D2
D1
CARRY/BORROW
COUNT INPUT
UP/DOWN
EQUAL
ZERO
FREE-RUNNING
10µs TYP
FIGURE 2. COUNT AND OUTPUTS TIMING
t
UCS
FIGURE 1. MULTIPLEX TIMING
t
CWH
t
t
t
CB
CEL
CZL
FREE-RUNNING
ICM7217
INTERDIGIT BLANK
400µs TYP
t
UCH
5
t
BW
t
CWL
t
CZH
t
CEH
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