ICM7216BLPL datasheet(6/18 Pages) INTERSIL

Part #	ICM7216BLPL

Description	8-Digit, Multi-Function, Frequency Counters/Timers

Download	18 Pages

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Manufacturer	INTERSIL [Intersil Corporation]

Direct Link	http://www.intersil.com/cda/home

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6

Timing Diagram

MEASUREMENT

IN PROGRESS

(INTERNAL ON

7216B)

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:

5. 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)

Typical Performance Curves

FIGURE 2. fA(MAX), fB(MAX) AS A FUNCTION OF SUPPLY

FIGURE 3. TYPICAL ISEG vs VDD-VOUT

fA (MAX) FREQUENCY UNIT COUNTER,

FREQUENCY RATIO MODES

fA (MAX) fB (MAX) PERIOD,

TIME INTERVAL MODES

TA = 25

oC

VDD-VSS (V)

20

15

10

5

0

34

5

6

85oC

-20oC

4.5

≤ VDD ≤ 6V

30

20

10

0

123

VDD-VOUT (V)

25oC

ICM7216B, ICM7216D

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ICM7216BLPL Datasheet(PDF) 6 Page - Intersil Corporation

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