Datasheet
C
ext
3
2
5
81
A
V
CC
B
GND
DCT PACKAGE
(TOP VIEW)
YZP PACKAGE
(BOTTOM VIEW)
DCU PACKAGE
(TOP VIEW)
3
2
4 5
1
A
V
CC
R
ext
/C
ext
B
GND
B
GND
V
CC
Q
CLR
See mechanical drawings for dimensions.
2
5
3
4
8
CLR
C
ext
Q
CLR
R
ext
/C
ext
Q
4
6
7
6
7
8
6
1
7
A
C
ext
R
ext
/C
ext
SN74LVC1G123
www.ti.com
SCES586C –JULY 2004–REVISED OCTOBER 2013
SINGLE RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
WITH SCHMITT-TRIGGER INPUTS
Check for Samples: SN74LVC1G123
1
FEATURES
DESCRIPTION
The SN74LVC1G123 is a single retriggerable
2
• Available in the Texas Instruments NanoFree™
monostable multivibrator designed for 1.65-V to 5.5-V
Package
V
CC
operation.
• Supports 5-V V
CC
Operation
This monostable multivibrator features output pulse-
• Inputs Accept Voltages to 5.5 V
duration control by three methods. In the first method,
• Max t
pd
of 8 ns at 3.3 V
the A input is low, and the B input goes high. In the
second method, the B input is high, and the A input
• Supports Mixed-Mode Voltage Operation on
goes low. In the third method, the A input is low, the
All Ports
B input is high, and the clear (CLR) input goes high.
• Schmitt-Trigger Circuitry on A and B Inputs for
Slow Input Transition Rates
The output pulse duration is programmed by selecting
external resistance and capacitance values. The
• Edge Triggered From Active-High or Active-
external timing capacitor must be connected between
Low Gated Logic Inputs
C
ext
and R
ext
/C
ext
(positive) and an external resistor
• Retriggerable for Very Long Output Pulses, up
connected between R
ext
/C
ext
and V
CC
. To obtain
to 100% Duty Cycle
variable pulse durations, connect an external variable
resistance between R
ext
/C
ext
and V
CC
. The output
• Overriding Clear Terminates Output Pulse
pulse duration also can be reduced by taking CLR
• Glitch-Free Power-Up Reset on Outputs
low.
• I
off
Supports Partial-Power-Down Mode
Operation
• Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2NanoFree is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2004–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.