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TS556 Datasheet

LOW POWER DUAL CMOS TIMER

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TS556
SO14
(plastic micropackage)
Pin connections
(top view)
Discharge
Threshold
Control
Voltage
Reset
Output
Trigger
GND
1
2
3
4
5
6
7
14 +VS
13 Discharge
12 Threshold
11
Control
Voltage
10 Reset
9 Output
8 Trigger
Low-power dual CMOS timer
Datasheet - production data
Description
The TS556 is a dual CMOS timer which offers a
very low consumption:
(IcIccc(T(TYYPP) )NTES555566(a=)
220 µA at
= 6 mA),
VCC
=
5
V
versus
and high frequency:
(f(fm(maaxx.).)NTES555566(a=)
2.7 MHz versus
= 0.1 MHz)
In both monostable and astable modes, timing
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(a).
Due to the high input impedance (1012 Ω), timing
capacitors can also be minimized.
Features
Very low power consumption:
– 220 µA typ at VCC = 5 V
– 180 µA typ at VCC = 3 V
High maximum astable frequency 2.7 MHz
Pin-to-pin and functionally compatible with
bipolar NE556(a)
Wide voltage range: 2 V to 16 V
Supply current spikes reduced during output
transitions
High input impedance: 1012 Ω
Output compatible with TTL, CMOS and logic
MOS
a. Terminated product
June 2015
This is information on a product in full production.
DocID4078 Rev 3
1/19
www.st.com


STMicroelectronics Electronic Components Datasheet

TS556 Datasheet

LOW POWER DUAL CMOS TIMER

No Preview Available !

Contents
Contents
TS556
1 Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 3
2 Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 Monostable operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2 Astable operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1 SO14 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2/19 DocID4078 Rev 3


Part Number TS556
Description LOW POWER DUAL CMOS TIMER
Maker STMicroelectronics
Total Page 19 Pages
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