ICM7226A 데이터 시트보기 (PDF) - Harris Semiconductor
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ICM7226A Datasheet PDF : 18 Pages
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Specifications ICM7226A, ICM7226B
Electrical Specifications VDD = 5.0V, TA = +25oC, Unless Otherwise Specified (Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP MAX UNITS
Digit Driver: Pins 22-24, 26-30
Low Output Current, IOL
High Output Current, IOH
ICM7226B
VO = +1.0V
VO = VDD -2.0V
-
-0.3
-
mA
150
180
-
mA
Segment Driver: Pins 22-24, 26-30
Leakage Current, IL
High Output Current, IOH
Multiplex Inputs: Pins 1, 4, 20, 21
VO = VSS
VO = VDD -2.0V
-
-
10
µA
10
15
-
mA
Input Low Voltage, VIL
Input High Voltage, VIH
Input Resistance to VSS, RIN
Digit Driver: Pins 8-11, 13-16
VIN = VDD -1.0V
-
-
VDD-2.0
V
VDD-0.8
-
-
V
100
360
-
kΩ
Low Output Current, IOL
VO = +1.0V
50
75
-
mA
High Output Current, IOH
VO = VDD -2.5V
-
100
-
µA
NOTES:
1. Destructive latchup may occur if input signals are applied before the power supply is established or if inputs or outputs are forced to volt-
ages exceeding VDD or VSS by 0.3V.
2. Assumes all leads soldered or welded to PC board and free air flow.
3. Typical values are not tested.
Timing Waveform
STORE
30ms TO 40ms
RESET
MEASUREMENT
IN PROGRESS
40ms
60ms
40ms
UPDATE
190ms TO 200ms
FUNCTION:
TIME INTERVAL
PRIMING
MEASUREMENT INTERVAL
UPDATE
INPUT A
INPUT B
PRIMING EDGES
NOTE:
1. If range is set to 1 event, first and last measured interval will coincide.
250ns MIN
MEASURED
INTERVAL
(FIRST)
MEASURED
INTERVAL
(LAST)
FIGURE 1. WAVEFORMS FOR TIME INTERVAL MEASUREMENT (OTHERS ARE SIMILAR, BUT WITHOUT PRIMING PHASE)
13-68
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