Sanyo LB8555S Specifications
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO 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 SANYO products described or contained
herein.
Monolithic Digital IC
General-Purpose Timer
Ordering number:ENN1077C
LB8555D, 8555S
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, T aito-ku, TOKYO, 110-8534 JAPAN
Overview
The LB8555 is a delay time generator IC capable of generating exact timing pulses. Both trigger pin and reset pin are
provided for various uses such as monostable multi vibrator ,
astable multivibrator. The output circuit is capable of applying 200mA sink/source current. Output is interfaceable
to TTL. This IC is usable as a replacement for Signetics-
made NE555.
Features
• Timing time settable from several µs. to several hours.
• Monostable multivibrator consisting of R=1, C=1 ; astable
multivibrator consisting of R=2, C=1.
• Adjustable duty cycle of pulse.
• 200mA sink/source current for driving external load.
Applications
• Delay time generator (monostable multivibrator).
• Sequence timer.
• Pulse generator (astable multivibrator).
• DC-DC converter.
• Pulse width modulator.
Package Dimensions
unit:mm
3001C-DIP8
[LB8555D, 8555S]
9.14
1.0
(0.76)
unit:mm
3016B-SIP8
8
1
0.5
1.5
5
4
(3.0)
0.51min
1.4
2.54
[LB8555D, 8555S]
22.3
7.62
3.9max
3.2
6.4
0.25
SANYO : DIP8
3.0
1.0
4.8
1
2.54
2.26
22801TN (KT)/1090TA/6307TA/8075KI/O122KI, TS No.1077–1/3
0.5
0.51min
5.7max
3.2
8
1.3
0.25
1.35
SANYO : SIP8
Specifications
Absolute Maximum Ratings at Ta = 25˚C
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatlovylppusmumixaMV
tnerructuptuOI
egatlovtupnI dlohserht,teser,egatlovlortnoc,reggirT V
noitapissidrewopelbawollAxamdP 526Wm
erutarepmetgnitarepOrpoT 57+ot02–
erutarepmetegarotSgtsT 521+ot04–
Allowable Operating Ranges at Ta = 25˚C
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatlovylppuSV
egatlovtupnIV
tnerructuptuOI
Electrical Characteristics at Ta = 25˚C
retemaraPlobmySsnoitidnoC
tnerrucylppuS
egatlovlortnoC
egatlovdlohserhTV
tnerrucdlohserhTI
egatlovreggirTV
tnerrucreggirTI
egatlovteseRV
tnerructeseRI
egatlovlevel-woltuptuOV
egatlovlevel-hgihtuptuOV
CC
TUO
CC
i
O
I
1CC
I
2CC
V
V
HT
HT
T
T
sr
sr
LO
HO
LB8555D, 8555S
xam 81V
002±Am
V
CC
˚C
˚C
61ot5.4V
dlohserht,teser,egatlovlortnoc,reggirT V
sgnitaR
nimpytxam
V
V
VCCV5=6.233.30.4V
1noc
V
2noc
V
V
V
V
V
R,V5=
CC
CC
CC
CC
CC
CC
CC
CC
=∞ 36Am
L
R,V51=
=∞ 0151Am
L
V51=90111V
V3/2
CC
1.052.0Aµ
V3/1
CC
5.00.1Aµ
53.07.00.1V
1.0Am
I,V5=
Am5=52.053.0V
knis
I,V51=
I,V51=
I,V5=
I,V51=
Am01=1.052.0V
knis
Am001=0.25.2V
knis
Am001=57.23.3V
ecruos
Am001=57.213.31V
ecruos
CC
002±Am
V
V
V
tinU
Equivalent Circuit Block Diagram and Pin Assignment
Top view
No.1077–2/3
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