ts556 STMicroelectronics, ts556 Datasheet

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ts556

Manufacturer Part Number
ts556
Description
Low Power Dual Cmos Timer
Manufacturer
STMicroelectronics
Datasheet

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DESCRIPTION
The TS556 is a dual CMOS timer which offers
very low consumption (I
V
frequency f
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
ORDER CODES
N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
February 2003
TS556C
TS556I
TS556M
Part Number
CC
VERY LOW POWER CONSUMPTION :
220 µA typ at V
180 µA typ at V
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
OUTPUT COMPATIBLE WITH TTL,CMOS
AND LOGIC MOS
=+5V versus I
f(max.)
TS556 = 2.7MHz versus f
Temperature Range
CC
cc(TYP)
CC
-40°C, +125°C
-55°C, +125°C
= 5V
0°C, +70°C
= 3V
NE556 = 6mA) and high
cc(TYP)
12
).
TS556 = 220µA at
12
Package
N
LOW POWER DUAL CMOS TIMER
(max.
D
)
PIN CONNECTIONS (top view)
Discharge
Threshold
Voltage
Control
Trigger
Output
Reset
GND
(Plastic Micropackage)
(Plastic Package)
1
2
3
4
5
6
7
DIP14
SO14
N
D
14
13
12
11
10
9
8
+V
Discharge
Threshold
Reset
Output
Trigger
Control
Voltage
TS556
S
1/11

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ts556 Summary of contents

Page 1

... HIGH OUTPUT CURRENT CAPABILITY SUPPLY CURRENT SPIKES REDUCED DURING OUTPUT TRANSITIONS HIGH INPUT IMPEDANCE : 10 OUTPUT COMPATIBLE WITH TTL,CMOS AND LOGIC MOS DESCRIPTION The TS556 is a dual CMOS timer which offers very low consumption (I cc(TYP) V =+5V versus I NE556 = 6mA) and high CC cc(TYP) frequency f TS556 = 2 ...

Page 2

... Ground TRIGGER THRESHOLD x Low High High Min voltage specificed Max voltage specificed Parameter 1) DIP14 SO14 o C/W for DIP14 package o C/W for SO14 package Parameter TS556 Output Discharge OUTPUT x Low x High High Low Low Previous State Value +18 +150 -65 to +150 1560 830 ...

Page 3

... SCHEMATIC DIAGRAM (1/2 TS556) TS556 3/11 ...

Page 4

... TS556 STATIC ELECTRICAL CHARACTERISTICS V = +2V +25°C, Reset amb Symbol Supply Current (no load, High and Low States min. amb Control Voltage Level min. amb Discharge Saturation Voltage (I V DIS T T min. amb I Discharge Pin Leakage Current ...

Page 5

... + 10pF) = 10pF) = +3V) trig Min. Typ. Max. 180 460 460 1.8 2 2.2 1.7 2.3 0.05 0.2 0.25 1 100 0.1 0.3 0.35 2.5 2.9 2.5 0.9 1 1.1 0.8 1 0.4 1.1 1.5 0.3 2.0 10 Min. Typ. 1 =+2V 1 =+ 100 350 TS556 Unit µ Max. Unit % %/V ppm/°C MHz % %/ 5/11 ...

Page 6

... TS556 STATIC ELECTRICAL CHARACTERISTICS V = +5V +25°C, Reset amb Symbol Supply Current (no load, High and Low States min. amb Control Voltage Level min. amb Discharge Saturation Voltage (I V DIS T T min. amb I Discharge Pin Leakage Current ...

Page 7

... CC Parameter 1) = +5V ± +5V max 200 , C = 200pF + +12V CC Min. Typ. Max. 340 800 800 7.4 8 8.6 7.3 8.7 0.09 1.6 2.0 1 100 1.2 2 2.8 10.5 11 10.5 3.2 4 4.8 3.1 4 0.4 1.1 1.5 0.3 2.0 10 Min. Typ. Max. 4 0.38 75 2.7 3 0.1 TS556 Unit µ Unit % %/V ppm/°C MHz % %/V 7/11 ...

Page 8

... Figure Reset Trigger 1/2 TS556 Out 8/11 The circuit triggers on a negative-going input sig- nal when the level reaches 1/3 V gered, the circuit remains in this state until the set time has elapsed, even triggered again dur- ing this interval. The duration of the output HIGH state is given ...

Page 9

... 0.693 (R The frequency of oscillation is then : and 2 The duty cycle is given --------------------------- R A Figure 1.44 ------------------------------------- - ( 0 div OUTPUT VOLTAGE = 5.0V/div CAPACITOR VOLTAGE = 1.0V/div TS556 9/11 ...

Page 10

... TS556 PACKAGE MECHANICAL DATA 14 PINS - PLASTIC DIP Dimensions Min. a1 0. 1.27 10/11 Millimeters Typ. Max. 1.65 0.5 0.25 20 8.5 2.54 15.24 7.1 5.1 3.3 2.54 Inches Min. Typ. 0.020 0.055 0.020 0.010 0.335 0.100 0.600 0.130 0.050 Max. 0.065 0.787 0.280 0.201 0.100 ...

Page 11

... STMicroelectronics GROUP OF COMPANIES Singapore - Spain - Sweden - Switzerland - United Kingdom © http://www.st.com Inches Min. Typ. 0.004 0.014 0.007 0.020 0.336 0.228 0.050 0.300 0.150 0.181 0.020 TS556 Max. 0.069 0.008 0.063 0.018 0.010 0.344 0.244 0.157 0.208 0.050 0.027 11/11 ...

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