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TS556C 数据手册 - ST Microelectronics（意法半导体）
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ST Microelectronics（意法半导体）
描述:
低功率双路CMOS计时器 LOW POWER DUAL CMOS TIMER
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TS556C数据手册
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■ VERY LOW POWER CONSUMPTION :
220 µA typ at V
CC
= 5V
180 µA typ at V
CC
= 3V
■ HIGH MAXIMUM ASTABLE FREQUENCY
2.7MHz
■ PIN-TO-PIN AND FUNCTIONALLY
COMPATIBLE WITH BIPOLAR NE556
■ WIDE VOLTAGE RANGE : +2V to +16V
■ 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
DESCRIPTION
The TS556 is a dual CMOS timer which offers
very low consumption (I
cc(TYP)
TS556 = 220µA at
V
CC
=+5V versus I
cc(TYP)
NE556 = 6mA) and high
frequency f
f(max.)
TS556 = 2.7MHz versus 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 (10
12
Ω).
ORDER CODES
N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
PIN CONNECTIONS (top view)
Part Number Temperature Range
Package
ND
TS556C 0°C, +70°C
••
TS556I -40°C, +125°C
••
TS556M -55°C, +125°C
••
N
DIP14
(Plastic Package)
D
SO14
(Plastic Micropackage)
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
TS556
LOW POWER DUAL CMOS TIMER
February 2003
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