Datasheet

This is information on a product in full production.
June 2015 DocID4078 Rev 3 1/19
TS556
Low-power dual CMOS timer
Datasheet - production data
Features
• Very low power consumption:
– 220 µA typ at V
CC
= 5 V
– 180 µA typ at V
CC
= 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: 10
12
Ω
• Output compatible with TTL, CMOS and logic
MOS
Description
The TS556 is a dual CMOS timer which offers a
very low consumption:
(I
cc(TYP)
TS556 = 220 µA at V
CC
= 5 V versus
I
cc(TYP)
NE556
(a)
= 6 mA),
and high frequency:
(f
(max.)
TS556 = 2.7 MHz versus
f
(max.)
NE556
(a)
= 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 (10
12
Ω), timing
capacitors can also be minimized.
a. Terminated product
Control
Voltage
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Discharge
Threshold
Reset
Output
Trigger
GND
Control
Voltage
+V
Discharge
Threshold
Reset
Output
Trigger
S
SO14
(plastic micropackage)
Pin connections
(top view)
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