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74ALS873 Series

Dual 4-Bit D-Type Latches With 3-State Outputs

Manufacturer: Texas Instruments

Catalog(2 parts)

PartOutput TypeIndependent CircuitsVoltage - SupplyVoltage - SupplyLogic TypeSupplier Device PackageDelay Time - PropagationPackage / CasePackage / CasePackage / CaseCircuitMounting TypeOperating TemperatureOperating TemperatureCurrent - Output High, LowPackage / Case
Texas Instruments
SN74ALS873BDWR
D-Type Transparent Latch 2 Channel 4:4 IC Tri-State 24-SOIC
Tri-State
2 ul
5.5 V
4.5 V
D-Type Transparent Latch
24-SOIC
7.999999773744548e-9 s
0.007499999832361937 m
0.007493000011891127 m
24-SOIC
4:4
Surface Mount
70 °C
0 °C
0.0026000000070780516 A, 0.024000000208616257 A
Texas Instruments
SN74ALS873BNT
D-Type Transparent Latch 2 Channel 4:4 IC Tri-State 24-PDIP
Tri-State
2 ul
5.5 V
4.5 V
D-Type Transparent Latch
24-PDIP
7.999999773744548e-9 s
24-DIP
4:4
Through Hole
70 °C
0 °C
0.0026000000070780516 A, 0.024000000208616257 A
0.007619999814778566 m, 0.007619999814778566 m

Key Features

3-State Buffer-Type Outputs Drive Bus Lines DirectlyBus-Structured PinoutPackage Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Plastic (NT) and Ceramic (JT) DIPs3-State Buffer-Type Outputs Drive Bus Lines DirectlyBus-Structured PinoutPackage Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Plastic (NT) and Ceramic (JT) DIPs

Description

AI
These dual 4-bit D-type latches feature 3-state outputs designed specifically for bus driving. These devices are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The dual 4-bit latches are transparent D-type latches. While the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs in true form, according to the function table. When LE is low, the outputs are latched. When the clear () input goes low, the Q outputs go low independently of LE. The outputs are in the high-impedance state when the output-enable () input is at a high logic level. The SN54ALS873B and SN54AS873A are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS873B and SN74AS873A are characterized for operation from 0°C to 70°C. These dual 4-bit D-type latches feature 3-state outputs designed specifically for bus driving. These devices are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The dual 4-bit latches are transparent D-type latches. While the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs in true form, according to the function table. When LE is low, the outputs are latched. When the clear () input goes low, the Q outputs go low independently of LE. The outputs are in the high-impedance state when the output-enable () input is at a high logic level. The SN54ALS873B and SN54AS873A are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS873B and SN74AS873A are characterized for operation from 0°C to 70°C.