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AND GATE. 74LS21 Datasheet

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AND GATE. 74LS21 Datasheet






74LS21 GATE. Datasheet pdf. Equivalent




74LS21 GATE. Datasheet pdf. Equivalent





Part

74LS21

Description

DUAL 4-INPUT AND GATE



Feature


DUAL 4-INPUT AND GATE SN54/74LS21 VCC 14 13 12 11 10 9 8 DUAL 4-INPUT AND GATE LOW POWER SCHOTTKY 1234567 GND G UARANTEED OPERATING RANGES Symbol Par ameter VCC Supply Voltage TA Operati ng Ambient Temperature Range IOH Outpu t Current โ€” High IOL Output Current โ €” Low 14 1 J SUFFIX CERAMIC CASE 632 -08 14 1 N SUFFIX PLASTIC CASE 646-06 14 1 D SUFFIX SOIC .
Manufacture

Motorola

Datasheet
Download 74LS21 Datasheet


Motorola 74LS21

74LS21; CASE 751A-02 ORDERING INFORMATION SN54 LSXXJ SN74LSXXN SN74LSXXD Ceramic Plas tic SOIC Min Typ Max Unit 54 4.5 5.0 5.5 74 4.75 5.0 5.25 V 54 โ€“ 55 25 1 25 ยฐC 74 0 25 70 54, 74 โ€“ 0.4 mA 54 4.0 mA 74 8.0 FAST AND LS TTL DATA 5-1 SN54 / 74LS21 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unle ss otherwise specified) Limits Symbol Parameter Min Typ Ma.


Motorola 74LS21

x Unit Test Conditions VIH Input HIGH Voltage 2.0 V Guaranteed Input HIGH Voltage for All Inputs 54 0.7 Guarante ed Input LOW Voltage for VIL Input LOW Voltage 74 0.8 V All Inputs VIK VOH I nput Clamp Diode Voltage Output HIGH Vo ltage โ€“ 0.65 .


Motorola 74LS21

.

Part

74LS21

Description

DUAL 4-INPUT AND GATE



Feature


DUAL 4-INPUT AND GATE SN54/74LS21 VCC 14 13 12 11 10 9 8 DUAL 4-INPUT AND GATE LOW POWER SCHOTTKY 1234567 GND G UARANTEED OPERATING RANGES Symbol Par ameter VCC Supply Voltage TA Operati ng Ambient Temperature Range IOH Outpu t Current โ€” High IOL Output Current โ €” Low 14 1 J SUFFIX CERAMIC CASE 632 -08 14 1 N SUFFIX PLASTIC CASE 646-06 14 1 D SUFFIX SOIC .
Manufacture

Motorola

Datasheet
Download 74LS21 Datasheet




 74LS21
DUAL 4-INPUT AND GATE
SN54/74LS21
VCC
14 13 12 11 10
9
8
DUAL 4-INPUT AND GATE
LOW POWER SCHOTTKY
1234567
GND
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
Supply Voltage
TA Operating Ambient Temperature Range
IOH Output Current โ€” High
IOL Output Current โ€” Low
14
1
J SUFFIX
CERAMIC
CASE 632-08
14
1
N SUFFIX
PLASTIC
CASE 646-06
14
1
D SUFFIX
SOIC
CASE 751A-02
ORDERING INFORMATION
SN54LSXXJ
SN74LSXXN
SN74LSXXD
Ceramic
Plastic
SOIC
Min Typ Max Unit
54 4.5 5.0 5.5
74 4.75 5.0 5.25
V
54 โ€“ 55 25 125 ยฐC
74 0 25 70
54, 74
โ€“ 0.4
mA
54 4.0 mA
74 8.0
FAST AND LS TTL DATA
5-1




 74LS21
SN54 / 74LS21
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min Typ Max Unit
Test Conditions
VIH Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
54 0.7 Guaranteed Input LOW Voltage for
VIL Input LOW Voltage 74 0.8 V All Inputs
VIK
VOH
Input Clamp Diode Voltage
Output HIGH Voltage
โ€“ 0.65 โ€“ 1.5 V VCC = MIN, IIN = โ€“ 18 mA
54 2.5 3.5
74 2.7 3.5
V VCC = MIN, IOH = MAX, VIN = VIH
V or VIL per Truth Table
VOL
Output LOW Voltage
54, 74
74
0.25 0.4
0.35 0.5
V IOL = 4.0 mA
V IOL = 8.0 mA
VCC = VCC MIN,
VIN = VIL or VIH
per Truth Table
IIH Input HIGH Current
IIL Input LOW Current
IOS Short Circuit Current (Note 1)
20 ยตA VCC = MAX, VIN = 2.7 V
0.1 mA VCC = MAX, VIN = 7.0 V
โ€“ 0.4 mA VCC = MAX, VIN = 0.4 V
โ€“ 20 โ€“100 mA VCC = MAX
Power Supply Current
ICC Total, Output HIGH
Total, Output LOW
2.4 mA VCC = MAX
4.4
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS (TA = 25ยฐC)
Symbol
tPLH
tPHL
Parameter
Turn-Off Delay, Input to Output
Turn-On Delay, Input to Output
Limits
Min Typ Max
8.0 15
10 20
Unit
ns
ns
Test Conditions
VCC = 5.0 V
CL = 15 pF
FAST AND LS TTL DATA
5-2







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