TS556C Datasheet, PDF (1/11 Pages) STMicroelectronics – LOW POWER DUAL CMOS TIMERS

TS556C,I,M
LOW POWER DUAL CMOS TIMERS
. _{VERY LOW POWER CONSUMPTION :}
. _{100µA typ at VCC = 5V}
. _{HIGH MAXIMUM ASTABLE FREQUENCY}
2.7MHz
. PIN-TO-PIN AND FUNCTIONALLY
COMPATIBLE WITH BIPOLAR NE555
. _{VOLTAGE RANGE : +2V to +18V}
. _{HIGH OUTPUT CURRENT CAPABILITY}
. _{SUPPLY CURRENT SPIKES REDUCED}
DURING OUTPUT TRANSITIONS
. _{HIGH INPUT IMPEDANCE : 10}¹² _Ω
. _{OUTPUT COMPATIBLE WITH TTL,CMOS}
AND LOGIC MOS
N
DIP14
(Plastic Package)
D
SO14
(Plastic Micropackage)
ORDER CODES
Part Number
Temperature
Range
TS556C
TS556I
TS556M
0^oC, +70^oC
-40, +125^oC
-55, +125^oC
Examples : TS556CD , TS556IN
PIN CONNECTIONS (top view)
Package
ND
q
q
q
q
q
q
DESCRIPTION
The TS556 is a dual CMOS timer which offers very
low consumption (Icc(TYP) TS556 = 200µA
Icc(TYP) NE556 = 6mA) and high frequency
(f(max.) TS556 = 2.7MHz - f(max.) NE556 = 0.1 MHz)
Thus, either in Monostable or Astable mode, tim-
ing remains very accurate.
The TS556 provides reduced supply current
spikes during output transitions, which enables
the use of lower decoupling capacitors compared
to those required by bipolar NE556.
Timing capacitors can also be minimized due to
high input impedance (10¹² Ω).
October 1997
Discharge ₁
Threshold 2
Control
Voltage
3
Reset 4
Output 5
Trigger 6
GND ₇
14 +V_S
13 Discharge
12 Threshold
11
Control
Voltage
10 Reset
9 _Output
8 _Trigger
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