Datasheet

UNISONIC TECHNOLOGIES CO., LTD
C555
Preliminary
CMOS IC
SINGLE TIMER

DESCRIPTION
The C555 astable and monostable timing circuit is a highly
stable controller capable of producing accurate time delays, or
oscillation.

FEATURES
* Timing from microseconds through hours
* High speed operation – 500kHz
* Wide operation supply voltage range – 2 to 18 voltages
* Low Supply Current -0.2mA
* Operates in both astable and monostable modes
* High output source/sink driver can drive TTL / CMOS
* Adjustable duty cycle

ORDERING INFORMATION
Ordering Number
Lead Free
C555L-D08-T
C555L-S08-T
C555L-S08-R
Halogen Free
C555G-D08-T
C555G-S08-T
C555G-S08-R
www.unisonic.com.tw
Copyright © 2013 Unisonic Technologies Co., Ltd
Package
Packing
DIP-8
SOP-8
SOP-8
Tube
Tube
Tape Reel
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C555
Preliminary

PIN CONFIGURATION

PIN DESCRIPTION
PIN No.
1
PIN NAME
GND
Ground
2
TRIGGER
Trigger voltage input
3
Output
Output
4
RESET
Direct reset low input
5
6
7
8
Control_Voltage
Threshold
Discharge
VCC


CMOS IC
DESCRIPTION
Control voltage
Threshold voltage input
Discharging when output is low
Supply voltage
TRUTH TABLE
THRESHOLD
TRIGGER
RESET
OUTPUT
DISCHARGE
X
>2/3×VCC
<2/3×VCC
X
X
>1/3×VCC
>1/3×VCC
<1/3×VCC
L
H
H
H
L
L
STABLE
H
ON
ON
STABLE
OFF
BLOCK DIAGRAM
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www.unisonic.com.tw
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C555

Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
18
V
Input Voltage
VTH, VTRIG, VRST
-0.3 ~ VCC+0.3
V
Output Current
IO
100
mA
Power Dissipation
PD
200
mW
Junction Temperature
TJ
125
°C
Operating Temperature
TOPR
-20~85
°C
Storage Temperature
TSTG
-65~150
°C
Note: Absolute maximum ratings and operation rating recommended are those values beyond which the device
could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device
operation is not implied.

RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
Output Current
Operating Temperature

SYMBOL
VCC
IO
TOPR
RATINGS
2.0 ~ 18
20
-20~75
UNIT
V
mA
°C
ELECTRICAL CHARACTERISTICS (unless otherwise specified)
PARAMETER
TA=25°C
Supply Current
Initial Accuracy
Drift with Supply Voltage
Control Voltage
Threshold Voltage
Trigger Voltage
Reset Voltage
SYMBOL
ICC
ACCUR
∆t/∆VCC
VC
VTH
VTR
VRST
Low Output Voltage
VOL
High Output Voltage
VOH
Rise/Fall Time of Output
Guaranteed Max Osc Freq
TA=-20~70°C
tTHL, tTLH,
fMAX
Supply Current
ICC
Initial Accuracy
ACCUR
Drift with Temperature
∆t/∆T
Drift with Supply Voltage
Control Voltage
Threshold Voltage
Trigger Voltage
Reset Voltage
Low Output Voltage
High Output Voltage
Rise/Fall Time of Output
Guaranteed Max Osc Freq
TEST CONDITIONS
VCC=2V
VCC=18V
VCC=5V, RL=1~100kΩ, CL=0.1μF
VCC=5V
VCC=5V
VCC=2~18V
VCC=5V, IOL=3.2 mA
VCC=15V, IOL=20mA
VCC=5V, IOL=0.8mA
VCC=15V, IOL=0.8mA
VCC=15V, RL=10MΩ, CL=10pF
VCC=2~18V, Astable Operation
VCC=2V
VCC=18V
VCC=5V, RL=1~100kΩ, CL=0.1μF
VCC=5V
VCC=5V,
RL=1~100kΩ,
VCC=15V
CL=0.1μF
VCC=5V
∆t/∆VCC
VC
VTH
VCC=5V
VTR
VCC=5V
VRST VCC=2~18V
VCC=5V, IOL=3.2mA
VOL
VCC=15V, IOL=20mA
VCC=5V, IOL=0.8mA
VOH
VCC=15V, IOL=0.8mA
tTHL, tTLH, VCC=5V, RL=10MΩ, CL=10pF
fMAX
VCC=2~18V, Astable Operation
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
TYP
MAX
UNIT
200
300
μA
μA
%
%/C
V
V
V
V
V
V
V
V
ns
kHz
5
0.65×VCC
0.65×VCC
0.31×VCC
0.4
4.0
14.3
35
500
3
0.69×VCC
0.70×VCC
0.36×VCC
1.0
0.4
1.0
75
400
600
5
0.60×VCC
0.60×VCC
0.28×VCC
0.2
3.5
14
70
200
0.02
0.06
6
0.80×VCC
0.80×VCC
0.40×VCC
1.5
0.6
1.5
150
μA
μA
%
%/°C
%/°C
%/C
V
V
V
V
V
V
V
V
ns
kHz
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C555

Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT
TRIGGER
RESET

SWITCHING WAVEFORMS
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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