SN54LS122J ON Semiconductor, SN54LS122J Datasheet

SN54LS122J

Manufacturer Part Number
SN54LS122J
Description
Manufacturer
ON Semiconductor
Datasheet
1.SN54LS122J.pdf (10 pages)

Specifications of SN54LS122J

Logic Family
LS
High Level Output Current
-400uA
Low Level Output Current
4mA
Number Of Elements
1
Operating Temperature Classification
Military
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (typ)
5V
Operating Temperature (max)
125C
Technology
Bipolar
Abs. Propagation Delay Time
56ns
Operating Supply Voltage (min)
4.5V
Lead Free Status / RoHS Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Bonase Electronics (HK) Co., Limited Bonase Electronics (HK) Co., Limited
Part Number:
SN54LS122J
Manufacturer:
MOTOROLA
Quantity:
10
Company:
Bonase Electronics (HK) Co., Limited Bonase Electronics (HK) Co., Limited
Part Number:
SN54LS122J
Manufacturer:
TI
Quantity:
5 510
Company:
Bonase Electronics (HK) Co., Limited Bonase Electronics (HK) Co., Limited
Part Number:
SN54LS122J
Manufacturer:
TI
Quantity:
5 510
RETRIGGERABLE MONOSTABLE
MULTIVIBRATORS
ods. The basic pulse width is programmed by selection of external resistance
and capacitance values. The LS122 has an internal timing resistor that allows
the circuits to be used with only an external capacitor. Once triggered, the ba-
sic pulse width may be extended by retriggering the gated low-level-active (A)
or high-level-active (B) inputs, or be reduced by use of the overriding clear.
These dc triggered multivibrators feature pulse width control by three meth-
NC
Overriding Clear Terminates Output Pulse
Compensated for V CC and Temperature Variations
DC Triggered from Active-High or Active-Low Gated Logic Inputs
Retriggerable for Very Long Output Pulses, up to 100% Duty Cycle
Internal Timing Resistors on LS122
NOTES:
1. An external timing capacitor may be connected between C ext and R ext /C ext (positive).
2. To use the internal timing resistor of the LS122, connect R int to V CC .
3. For improved pulse width accuracy connect an external resistor between R ext /C ext and
4. To obtain variable pulse widths, connect an external variable resistance between R int /C ext
V CC with R int open-circuited.
and V CC .
NO INTERNAL CONNECTION.
V
16
1A
CC
1
V
A1
CC
14
1
1 R
C
1B
15
SN54 / 74LS123 (TOP VIEW)
2
SN54 / 74LS122 (TOP VIEW)
ext
ext/
R
(SEE NOTES 1 THRU 4)
(SEE NOTES 1 THRU 4)
C
A2
13
2
ext/
ext
C
CLR
CLR
14
3
1
ext
1
NC
B1
12
3
Q
Q
1Q
1Q
13
4
C
B2
11
ext
4
2Q
12
2Q
5
CLR
CLR
NC
10
5
Q
Q
CLR
R
CLR
C
11
2
6
2
ext
int
Q
Q
R
9
6
Q
int
FAST AND LS TTL DATA
R
C
2B
10
7
ext/
ext
2
GND
Q
8
7
GND
2A
9
8
5-197
RETRIGGERABLE MONOSTABLE
14
16
14
16
SN54/74LS122
SN54/74LS123
14
ORDERING INFORMATION
16
1
LOW POWER SCHOTTKY
1
1
1
SN54LSXXXJ
SN74LSXXXN Plastic
SN74LSXXXD SOIC
MULTIVIBRATORS
1
1
Ceramic
CASE 751A-02
CASE 751B-03
CASE 632-08
CASE 646-06
CASE 620-09
CASE 648-08
CERAMIC
CERAMIC
N SUFFIX
D SUFFIX
N SUFFIX
D SUFFIX
J SUFFIX
J SUFFIX
PLASTIC
PLASTIC
SOIC
SOIC

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SN54LS122J Summary of contents

Page 1

RETRIGGERABLE MONOSTABLE MULTIVIBRATORS These dc triggered multivibrators feature pulse width control by three meth- ods. The basic pulse width is programmed by selection of external resistance and capacitance values. The LS122 has an internal timing resistor that allows the circuits ...

Page 2

SN54/74LS122 SN54/74LS123 LS122 FUNCTIONAL TABLE INPUTS CLEAR ...

Page 3

SN54/74LS122 SN54/74LS123 GUARANTEED OPERATING RANGES Symbol Parameter V CC Supply Voltage T A Operating Ambient Temperature Range I OH Output Current — High I OL Output Current — Low R ext External Timing Resistance C ext External Capacitance R ext ...

Page 4

SN54/74LS122 SN54/74LS123 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE Symbol Symbol Parameter Parameter V IH Input HIGH Voltage Input LOW Voltage Input LOW Voltage V IK Input Clamp Diode Voltage Output HIGH Voltage ...

Page 5

SN54/74LS122 SN54/74LS123 ext C ext ext ext CC C ext Q CLR 1/2 LS123 GND 51 Figure out W ...

Page 6

SN54/74LS122 SN54/74LS123 0. 1000 pF ext 0 0. 0.4 125 C 0.35 4 Figure 5. K versus V CC ...

Page 7

SN54/74LS122 SN54/74LS123 0. 0 0.55 125 C 0.5 4.5 4.75 PIN ext PIN Figure 10. LS123 Remote Trimming Circuit FAST AND LS TTL ...

Page 8

SN54/74LS122 SN54/74LS123 PIN 9 OPEN R ext PIN 13 C ext PIN 11 Figure 11. LS122 Remote Trimming Circuit Without R ext PIN 9 PIN 13 PIN 11 Figure 12. LS122 Remote Trimming Circuit with R int FAST AND LS ...

Page 9

G - 0.25 (0.010 - SEATING -T- PLANE 0.25 (0.010) ...

Page 10

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of ...

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