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TS555C,I,M

®

LOW POWER SINGLE CMOS TIMERS

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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 : 1012 Ω
OUTPUTCOMPATIBLE WITH TTL,CMOS
AND LOGIC MOS

D
SO8
(Plastic Micropackage)

N
DIP8
(Plastic Package)

P
TSSOP8
(Thin Shrink Small Outline Package)

ORDER CODES
Package

Temperature
Range

Part Number

o

N

o

D

P

TS555C

0 C, +70 C

q

q

q

TS555I

-40, +125oC

q

q

q

TS555M

-55, +125oC

q

q

q

Examples : TS555CD , TS555IN

PIN CONNECTIONS(top view)

DESCRIPTION
The TS555 is a single CMOS timer which offers
very low consumption (Icc(TYP) TS555 = 100µA
Icc(TYP) NE555 = 3mA) and high frequency
(f(max.) TS555 = 2.7MHz - f(max.) NE555 = 0.1 MHz)
Thus, either in Monostable or Astable mode, timing
remains very accurate.
The TS555 provides reduced supply current spikes
during output transitions, which enables the use of
lowerdecoupling capacitors compared to those
required by bipolar NE555.
Timing capacitors can also be minimized due to
high input impedance (1012 Ω).
January 1999

GND

1

8

VCC

Trigger

2

7

Discharge

Output

3

6

Threshold

Reset

4

5

Control
Voltage

1/12

TS555C,I,M
BLOCK DIAGRAM
V
CC

Reset

8

4

TS555

R
R1
3

Q

+

Output7

Threshold 6

Discharge

R

Control
5
Voltage

-

A
S

R
+

Trigger 2

-

B

R
1

Ground

RESET

TRIGGER

THRESHOLD

OUTPUT

Low

x

x

Low

High

Low

x

High

High

High

High

Low

High

High

Low

Previous State

LOW
HIGH
X

£
£
£

Level Voltage ≤ Min voltage specified
Level Voltage ≥ Max voltage specifiedIrrelevant

ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
TJ

Parameter

Value

Supply Voltage

+18

Junction Temperature

+150

Unit
V
o

C

THERMAL CHARACTERISTICS
Symbol
TOPER

TSTG

2/12

Parameter

Value

Unit
o

Operating Temperature Range
TS555C
TS555I
TS555M

0 to +70
-40 to +125
-55 to +125

C

Storage Temperature Range

-65 to +150

o

C

R150k Ω

R6

50k Ω

R5

50k Ω

R4

50k Ω

R3

Control Voltage

50k Ω

R2

50k Ω

Τ1

Τ5

Τ4

Τ2

Τ6

Threshold

Τ7

Τ8 Τ9

R7

Τ11

Τ10

Τ14

Τ15

Τ12

Τ18

Τ13

GND

Τ16

Τ20

V CC

RESET

Τ17

Τ19

Trigger

Τ21

Τ22

Τ23

Τ25

Τ24

Τ26

Τ28

Τ27

Τ29

Τ30

Τ32

Τ31

Τ33

Τ35

Discharge

Τ34Output

TS555C,I,M

SCHEMATIC DIAGRAM

3/12

TS555C,I,M
OPERATING CONDITIONS
Symbol
VCC

Parameter

Value
+2 to +16

Supply Voltage

Unit
V

STATIC ELECTRICAL CHARACTERISTICS
VCC = +2V, Tamb = +25oC, Reset to VCC (unless otherwise specified)
Symbol
ICC

VCL

Vdis

VOL

VOH

Vtrig

Parameter

TS555C-TS555I-TS555M
Min.

Typ

Max.

65

200
200

1.31.4
1.5

Discharge Saturation Voltage (Idis = 1mA)
Tamb = + 25oC
Tmin. ≤ Tamb ≤ Tmax.

0.05

0.2
0.25

Low Level Output Voltage (Isink = 1mA)
o
Tamb = + 25 C
Tmin. ≤ Tamb ≤ Tmax.

0.1

Unit

0.3
0.35

Supply Current (no load, High and Low States)
Tamb = + 25oC
Tmin. ≤ Tamb ≤ Tmax.
Control Voltage
Tamb = + 25oC
Tmin. ≤ Tamb ≤ Tmax.

µA
V

1.2
1.1

V

V

VHigh Level Output Voltage (Isource = -0.3mA)
Tamb = + 25oC
Tmin. ≤ Tamb ≤ Tmax.

1.5
1.5

1.9

Trigger Voltage
o
Tamb = + 25 C
Tmin. ≤ Tamb ≤ Tmax.

0.4
0.3

0.67

V
0.95
1.05

Itrig

Trigger Current

10

pA

ITH

Threshold Current

10

pA

Vreset

Ireset
Idis

4/12

Reset Voltage
o
Tamb = + 25 C
Tmin. ≤ Tamb ≤ Tmax.

V
0.4
0.3

1.1...