MIC50395CN Просмотр технического описания (PDF) - Micrel
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MIC50395CN Datasheet PDF : 6 Pages
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MIC50395/50396/50397
Timing
1
2
3
4
5
COUNT
UP/DOWN
t UDS
COUNT INHIBIT
STORE
CLEAR
COUNT
ZERO
CARRY
EQUAL
t PCW
t CS
t SS
t SPW
t OA
t CA
t EA
tOH
t CH
t EH
6
7
8
t UDS
t CIS
9
10
11
t CIS
Micrel
SCAN
tL
LOAD COUNTER
tL
LOAD REGISTER
Loading Counter, Register (1 Digit)
LOAD COUNTER
OR REGISTER
t LS
t DV
BCD DATA INPUT
DIGIT OUTPUT 6
DIGIT OUTPUT 5 ETC
COUNT INPUT, CARRY
EQUAL, ZERO OUTPUT
INHIBITED DURING THIS
TIME
COUNT INPUT
ZERO OUTPUT
CARRY OUTPUT
EQUAL OUTPUT
t OA
t CA
t EA
t OH
t CH
t EH
tLS 2.0 µs min NOTE: REF. TO POSITIVE
TRANSITION OF DIGIT OUTPUT
tDV 2.0 µs min NOTE: REF. TO NEGATIVE
EDGE OF DIGIT OUTPUT
NOTE:
The inhibit function of the zero or equal outputs
does not end when the Load Counter input goes to
a “0” unless that transition occurs during interdigit
blanking period at least 2.0 µs prior to a positive
transition of a digit output. This same timing
restriction holds for Equal and Load Register.
8-8
August 1998
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