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| ICM7556 Datasheet, PDF (3/11 Pages) Intersil Corporation – Precision Timing Pulse Generation Sequential Timing Time Delay Generation Pulse Width Modulation Missing Pulse Detector | |||
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ICM7555, ICM7556
Electrical Specifications Applies to ICM7555 and ICM7556, Unless Otherwise Specified
PARAMETER
SYMBOL
TEST CONDITIONS
TA = 25oC
MIN TYP MAX
(NOTE 4)
-55oC TO 125oC
MIN TYP MAX
UNITS
Reset Current
Discharge Leakage
Output Voltage
Discharge Output Voltage
Supply Voltage (Note 3)
Output Rise Time (Note 3)
Output Fall Time (Note 3)
Oscillator Frequency
(Note 3)
IRST
IDIS
VOL
VOH
VDIS
VDD
tR
tF
fMAX
VDD = 15V
VDD = 15V
VDD = 15V, ISINK = 20mA
VDD = 5V, ISINK = 3.2mA
VDD = 15V, ISOURCE = 0.8mA
VDD = 5V, ISOURCE = 0.8mA
VDD = 5V, ISINK = 15mA
VDD = 15V, ISINK = 15mA
Functional Operation
RL = 10M, CL = 10pF, VDD = 5V
RL = 10M, CL = 10pF, VDD = 5V
VDD = 5V, RA = 470â¦, RB = 270â¦,
C = 200pF
-
-
10
-
-
50
nA
-
-
10
-
-
50
nA
-
0.4 1.0
-
- 1.25
V
-
0.2 0.4
-
-
0.5
V
14.3 14.6 - 14.2 -
-
V
4.0 4.3
-
3.8
-
-
V
-
0.2 0.4
-
-
0.6
V
-
-
-
-
-
0.4
V
2.0
- 18.0 3.0
- 16.0
V
-
75
-
-
-
-
ns
-
75
-
-
-
-
ns
-
1
-
-
-
-
MHz
NOTES:
3. These parameters are based upon characterization data and are not tested.
4. Applies only to military temperature range product (M suffix).
Functional Diagram
THRESHOLD
6
5
CONTROL
VOLTAGE
VDD
8
4
FLIP-FLOP
RESET
R COMPARATOR
A
+
-
R
TRIGGER
2
+
-
R COMPARATOR
B
1
GND
OUTPUT
DRIVERS
OUTPUT
3
7 DISCHARGE
n
1
NOTE: This functional diagram reduces the circuitry down to its simplest equivalent components. Tie down unused inputs.
TRUTH TABLE
THRESHOLD VOLTAGE
TRIGGER VOLTAGE
RESET
Donât Care
Donât Care
Low
>2/3(V+)
<2/3(V+)
Donât Care
>1/3(V+)
>1/3(V+)
<1/3(V+)
High
High
High
NOTE: RESET will dominate all other inputs: TRIGGER will dominate over THRESHOLD.
OUTPUT
Low
Low
Stable
High
DISCHARGE SWITCH
On
On
Stable
Off
3
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