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参数资料
| 型号： | ICM7216DlPl |
| 厂商： | Intersil Corporation |
| 元件分类： | 通用总线功能 |
| 英文描述： | 8-Digit, Multi-Function, Frequency Counters/Timers |
| 中文描述： | 8位数字，多功能，频率计数器/定时器 |
| 文件页数： | 6/17页 |
| 文件大小： | 141K |
| 代理商： | ICM7216DLPL |
9-15
Timing Diagram
Typical Performance Curves
FIGURE 2. f
A
(MAX), f
B
(MAX) AS A FUNCTION OF SUPPLY
FIGURE 3. ICM7216A TYPICAL I
DIG
vs V
DD
-V
OUT
MEASUREMENT
IN PROGRESS
(INTERNAL ON
7216A/B)
30ms TO 40ms
INTERNAL
STORE
INTERNAL
RESET
INPUT A
INPUT B
PRIMING EDGES
PRIMING
FUNCTION:
TIME INTERVAL
UPDATE
190ms TO 200ms
40ms
60ms
40ms
MEASUREMENT INTERVAL
250ns MIN
MEASURED
INTERVAL
(FIRST)
MEASURED
INTERVAL
(LAST)
UPDATE
NOTE:
1. If range is set to 1 event, first and last measured interval will coincide.
FIGURE 1. WAVEFORMS FOR TIME INTERVAL MEASUREMENT (OTHERS ARE SIMILAR, BUT WITHOUT PRIMING PHASE)
f
A
(MAX) FREQUENCY UNIT COUNTER,
FREQUENCY RATIO MODES
f
A
(MAX) f
B
(MAX) PERIOD,
TIME INTERVAL MODES
T
A
= 25
o
C
V
DD
-V
SS
(V)
F
20
15
10
5
0
3
4
5
6
85
o
C
-20
o
C
4.5
≤
V
DD
≤
6.0V
300
200
100
0
0
1
2
3
V
DD
-V
OUT
(V)
I
D
25
o
C
ICM7216A, ICM7216B, ICM7216D
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