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Número de pieza
componentes Descripción
7217 Ver la hoja de datos (PDF) - Intersil
Número de pieza
componentes Descripción
Fabricante
7217
4-Digit LED Display, Programmable Up/Down Counter
Intersil
7217 Datasheet PDF : 20 Pages
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Timing Waveforms
SCAN
INTERNAL OSC
OUTPUT
D4
INTERNAL
D3
(BCD AND
SEGMENT
ENABLE)
D2
D1
10
µ
s TYP
FREE-RUNNING
D4
INTERNAL
(COMMON
D3
ANODE
DIGIT
STROBES)
D2
D1
ICM7217
400
µ
s TYP
FREE-RUNNING
INTERDIGIT BLANK
UP/DOWN
COUNT INPUT
CARRY/BORROW
EQUAL
ZERO
FIGURE 1. MULTIPLEX TIMING
t
UCS
t
UCH
t
CWH
t
CB
t
CEL
t
CZL
t
BW
t
CWL
t
CEH
t
CZH
FIGURE 2. COUNT AND OUTPUTS TIMING
5
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