ICM7216A Intersil Corporation, ICM7216A Datasheet - Page 6

• Manufacturer Part Number: ICM7216A
• Description: 8-digit, Multi-function, Frequency Counters/timers
• Manufacturer: Intersil Corporation

Timing Diagram
NOTE:
Typical Performance Curves
MEASUREMENT
1. If range is set to 1 event, first and last measured interval will coincide.
(INTERNAL ON
IN PROGRESS
FIGURE 2. f
FIGURE 1. WAVEFORMS FOR TIME INTERVAL MEASUREMENT (OTHERS ARE SIMILAR, BUT WITHOUT PRIMING PHASE)
INTERNAL
INTERNAL
20
15
10
5
0
7216A/B)
INPUT A
INPUT B
3
STORE
RESET
30ms TO 40ms
T
A
= 25
A
(MAX), f
o
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f
C
A
(MAX) FREQUENCY UNIT COUNTER,
B
(MAX) AS A FUNCTION OF SUPPLY
4
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190ms TO 200ms
FREQUENCY RATIO MODES
V
f
DD
A
UPDATE
(MAX) f
TIME INTERVAL MODES
-V
SS
40ms
(V)
B
ICM7216A, ICM7216B, ICM7216D
(MAX) PERIOD,
60ms
5
40ms
PRIMING EDGES
PRIMING
6
9-15
FUNCTION:
TIME INTERVAL
300
200
100
FIGURE 3. ICM7216A TYPICAL I
0
0
4.5
V
DD
MEASUREMENT INTERVAL
MEASURED
250ns MIN
INTERVAL
(FIRST)
6.0V
85
1
o
C
V
DD
-V
OUT
-20
(V)
DIG
o
C
25
vs V
2
MEASURED
o
INTERVAL
C
(LAST)
DD
-V
OUT
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UPDATE
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