UNISONIC TECHNOLOGIES CO., LTD
C555
SINGLE TIMER
DESCRIPTION
Preliminary
CMOS IC
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
Package
DIP-8
SOP-8
SOP-8
Packing
Tube
Tube
Tape Reel
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Copyright © 2013 Unisonic Technologies Co., Ltd
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PIN CONFIGURATION
Preliminary
CMOS IC
PIN DESCRIPTION
PIN NAME
GND
TRIGGER
Output
RESET
Control_Voltage
Threshold
Discharge
V
CC
DESCRIPTION
Ground
Trigger voltage input
Output
Direct reset low input
Control voltage
Threshold voltage input
Discharging when output is low
Supply voltage
PIN No.
1
2
3
4
5
6
7
8
TRUTH TABLE
THRESHOLD
X
>2/3×V
CC
<2/3×V
CC
X
TRIGGER
X
>1/3×V
CC
>1/3×V
CC
<1/3×V
CC
RESET
L
H
H
H
OUTPUT
L
L
STABLE
H
DISCHARGE
ON
ON
STABLE
OFF
BLOCK DIAGRAM
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C555
PARAMETER
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATINGS
SYMBOL
RATINGS
UNIT
Supply Voltage
V
CC
18
V
Input Voltage
V
TH
, V
TRIG
, V
RST
-0.3 ~ V
CC
+0.3
V
Output Current
I
O
100
mA
Power Dissipation
P
D
200
mW
Junction Temperature
T
J
125
°C
Operating Temperature
T
OPR
-20~85
°C
Storage Temperature
T
STG
-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
SYMBOL
V
CC
I
O
T
OPR
RATINGS
2.0 ~ 18
20
-20~75
UNIT
V
mA
°C
Supply Voltage
Output Current
Operating Temperature
ELECTRICAL CHARACTERISTICS
(unless otherwise specified)
SYMBOL
I
CC
A
CCUR
∆t/∆V
CC
V
C
V
TH
V
TR
V
RST
V
OL
V
OH
t
THL,
t
TLH,
f
MAX
I
CC
A
CCUR
∆t/∆T
TEST CONDITIONS
V
CC
=2V
V
CC
=18V
V
CC
=5V, R
L
=1~100kΩ, C
L
=0.1μF
V
CC
=5V
V
CC
=5V
V
CC
=2~18V
V
CC
=5V, I
OL
=3.2 mA
V
CC
=15V, I
OL
=20mA
V
CC
=5V, I
OL
=0.8mA
V
CC
=15V, I
OL
=0.8mA
V
CC
=15V, R
L
=10MΩ, C
L
=10pF
V
CC
=2~18V, Astable Operation
V
CC
=2V
V
CC
=18V
V
CC
=5V, R
L
=1~100kΩ, C
L
=0.1μF
V
CC
=5V
V
CC
=5V,
R
L
=1~100kΩ,
V
CC
=15V
C
L
=0.1μF
V
CC
=5V
5
0.65×V
CC
0.65×V
CC
0.31×V
CC
0.4
3
0.69×V
CC
0.70×V
CC
0.36×V
CC
1.0
0.4
1.0
MIN
TYP
MAX
200
300
UNIT
μA
μA
%
%/C
V
V
V
V
V
V
V
V
ns
kHz
μA
μA
%
%/°C
%/°C
%/C
V
V
V
V
V
V
V
V
ns
kHz
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PARAMETER
T
A
=25°C
Supply Current
Initial Accuracy
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
T
A
=-20~70°C
Supply Current
Initial Accuracy
Drift with Temperature
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
4.0
14.3
35
500
75
400
600
5
0.02
0.06
6
0.80×V
CC
0.80×V
CC
0.40×V
CC
1.5
0.6
1.5
∆t/∆V
CC
V
C
V
TH
V
CC
=5V
V
TR
V
CC
=5V
V
RST
V
CC
=2~18V
V
CC
=5V, I
OL
=3.2mA
V
OL
V
CC
=15V, I
OL
=20mA
V
CC
=5V, I
OL
=0.8mA
V
OH
V
CC
=15V, I
OL
=0.8mA
t
THL,
t
TLH,
V
CC
=5V, R
L
=10MΩ, C
L
=10pF
f
MAX
V
CC
=2~18V, Astable Operation
0.60×V
CC
0.60×V
CC
0.28×V
CC
0.2
3.5
14
70
200
150
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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.
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