ICM7555IN PHILIPS [NXP Semiconductors], ICM7555IN Datasheet - Page 2

• Manufacturer Part Number: ICM7555IN
• Description: General purpose CMOS timer
• Manufacturer: PHILIPS [NXP Semiconductors]

1. RESET will dominate all other inputs: TRIGGER will dominate over THRESHOLD.
1. Due to the SCR structure inherent in the CMOS process used to fabricate these devices, connecting any terminal to a voltage greater than
2. Derate above 25 C, at the following rates:
3. See “Power Dissipation Considerations” section.
Philips Semiconductors Linear Products
EQUIVALENT BLOCK DIAGRAM
TRUTH TABLE
NOTES:
ABSOLUTE MAXIMUM RATINGS
NOTES:
August 31, 1994
THRESHOLD VOLTAGE
General purpose CMOS timer
NOTE:
UNUSED INPUTS SHOULD BE CONNECTED TO APPROPRIATE VOLTAGE FROM TRUTH TABLE.
V
not operating from the same power supply be applied to the device before its power supply is established. In multiple systems, the supply of
the ICM7555 must be turned on first.
SYMBOL
DD
V
P
T
V
T
DON’T CARE
DON’T CARE
I
V
TRIG
V
V
DMAX
SOLD
OUT
STG
+ 0.3V or less than GND -0.3V may cause destructive latch-up. For this reason it is recommended that no inputs from external sources
RST
DD
CV
TH
V
>2/3(V+)
TH
1
< 2/3
Supply voltage
Trigger input voltage
Control voltage
Threshold input voltage
RESET input voltage
Output current
Maximum power dissipation, T
Storage temperature range
Lead temperature (Soldering 60s)
N package at 9.3mW/ C
D package at 6.2mW/ C
THRESHOLD
CONTROL
VOLTAGE
TRIGGER
N package
D package
TRIGGER VOLTAGE
DON’T CARE
6
5
2
V
> 1/3(V+)
<1/3(V+)
TR
V DD
> 1/3
1
1
8
R
R
R
COMPARATOR
COMPARATOR
+
–
+
–
A
= 25 C (still air)
A
B
PARAMETER
FLIP–FLOP
RESET
4
RESET
2
HIGH
HIGH
HIGH
LOW
338
1
OUTPUT
STABLE
DISCHARGE
HIGH
LOW
LOW
OUTPUT
DRIVERS
7
N
1
3
OUTPUT
-65 to +150
<V
RATING
> -0.3 to
DD
1160
+18
100
780
300
+ 0.3
DISCHARGE SWITCH
Product specification
ICM7555
STABLE
OFF
ON
ON
UNITS
mW
mW
mA
V
V
C
C