upc1555 Renesas Electronics Corporation., upc1555 Datasheet

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upc1555

Manufacturer Part Number
upc1555
Description
Timer Circuit
Manufacturer
Renesas Electronics Corporation.
Datasheet

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Document No. G10649EJ6V0DS00 (6th edition)
Date Published November 1995 P
Printed in Japan
(Previous No. IC-1979)
timing signal generators, such as monostable and astable multivibrators. It has trigger, threshold, and control pins.
Inputting a signal to the reset pin can stop the circuit operation easily. In addition, the output can sink current as high
as 200 mA (maximum). So, it can be used to drive relays and lamps.
TYPICAL CHARACTERISTICS
• Supply voltage
• Circuit current (V
• Output current capacity
• Temperature stability
• Rising and falling time
ORDERING INFORMATION
EQUIVALENT CIRCUIT
Part number
PC1555C
PC1555G2 8-pin plastic SOP (225 mil)
The PC1555 is a powerful integrated circuit. Adding a few external parts to it can turn it into various types of
8-pin plastic DIP (300 mil)
CC
= 5 V) : 3 mA
Package
Discharge
Threshold
Reset
: 4.5 to 16 V
: 200 mA
: 0.005%/ C
: 100 ns
Trigger
Control
GND
7
V
Q
8
6
5
1
2
4
CC
14
(3V
2
Q
Q
CC
25
1
Q
Q
)
6
2
Q
Q
R
10 k
3
5
TIMER CIRCUIT
Q
1
4
DATA SHEET
Q
Q
7
12
Q
Q
8
11
Q
R
1 k
Q
9
2
13
Q
10
Q
R
R
R
5 k
5 k
5 k
15
FEATURES
• Monostable and astable oscillation
• Interfacing directly with TTL-level signals
• Variable duty cycle
4
5
PIN CONFIGURATION (TOP VIEW)
3
Trigger
Output
Reset
GND
Bipolar Analog Integrated Circuit
Q
16
1
2
3
4
Q
Q
Q
17
18
21
Q
MOS INTEGRATED CIRCUIT
4.7 k
COMP
7.5k
19
Flip-flop
Output
stage
R
R
Q
6
7
22
Q
100
20
R
6.2
R
V
k
11
8
REF
Q
R
3.9
23
R
R
R
k
12
Q
120
R
3.3k
27
COMP
Q
R
10
24
9
Q
PC1555
Q
26
28
Output
8
7
6
5
3
V
Discharge
Threshold
Control voltage
CC
©
1986

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upc1555 Summary of contents

Page 1

The PC1555 is a powerful integrated circuit. Adding a few external parts to it can turn it into various types of timing signal generators, such as monostable and astable multivibrators. It has trigger, threshold, and control pins. Inputting a signal ...

Page 2

ABSOLUTE MAXIMUM RATINGS (T A Parameter Symbol Supply voltage V CC Input voltage V IN (trigger, threshold, reset, control) Note 4 Applicable output voltage V O (output and discharge) Output current I O Power dissipation P T Operating temperature T ...

Page 3

ELECTRICAL CHARACTERISTICS (T A Parameter Symbol Supply voltage V CC Supply current I CC Threshold voltage V th Threshold current I th Trigger voltage V tr Trigger current I tr Reset voltage V reset Reset current I reset Control voltage ...

Page 4

CHARACTERISTIC CURVES ( TYP.) A Minimum trigger pulse width characteristic 1 1.0 0.8 0 125 ...

Page 5

Propagation delay characteristic 1 1.0 0 0 0.2 0 0.1 0.2 0.3 Minimum trigger pulse voltage ( characteristic ...

Page 6

PIN FUNCTIONS 1. Trigger pin (pin 2) : Supplying one-third of V voltage from low to high. 2. Output pin (pin 3) : The maximum output current is 200 mA. Be careful not to exceed the total loss (see the ...

Page 7

APPLICATION CIRCUITS (1) Monostable multivibrator Fig. a Monostable Multivibrator Example Note TRIGGER PC1555 3 5 OUTPUT 1 When the PC1555 is configured as shown in ...

Page 8

Astable multivibrator example Fig. d Astable Multivibrator Example Note OUTPUT PC1555 Control voltage 0.01 F When the PC1555 is used in ...

Page 9

PLASTIC DIP (300 mil NOTES 1) Each lead centerline is located within 0.25 mm (0.01 inch) of its true position (T.P.) at maximum material condition. 2) ltem "K" to center ...

Page 10

PIN PLASTIC SOP (225 mil NOTE Each lead centerline is located within 0.12 mm (0.005 inch) of its true position (T.P.) at maximum material condition detail of lead end 4 L ...

Page 11

RECOMMENDED SOLDERING CONDITIONS The conditions listed below shall be met when soldering the PC1555. Please consult with our sales offices in case any other soldering process is used case soldering is done under different conditions. Surface-Mount Devices For ...

Page 12

No part of this document may be copied or reproduced in any form or by any means without the prior written consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in this document. ...

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