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74ACT1284 Series

7-Bit Bus Interfaces With 3-State Outputs

Manufacturer: Texas Instruments

Catalog(6 parts)

PartLogic TypeSupply VoltageSupply VoltageOperating TemperatureOperating TemperatureMounting TypeSupplier Device PackagePackage / CasePackage / CasePackage / Case
Texas Instruments
SN74ACT1284DW
IEEE STD 1284 Translation Transceiver IC 20-SOIC
IEEE STD 1284 Translation Transceiver
4.5 V
5.5 V
70 °C
0 °C
Surface Mount
20-SOIC
0.007493000011891127 m, 0.007499999832361937 m
20-SOIC
Texas Instruments
SN74ACT1284PWG4
IEEE STD 1284 Translation Transceiver IC 20-TSSOP
IEEE STD 1284 Translation Transceiver
4.5 V
5.5 V
70 °C
0 °C
Surface Mount
20-TSSOP
0.004394200164824724 m
20-TSSOP
0.004399999976158142 m
Texas Instruments
SN74ACT1284PW
IEEE STD 1284 Translation Transceiver IC 20-TSSOP
IEEE STD 1284 Translation Transceiver
4.5 V
5.5 V
70 °C
0 °C
Surface Mount
20-TSSOP
0.004394200164824724 m
20-TSSOP
0.004399999976158142 m
Texas Instruments
SN74ACT1284DBR
IEEE STD 1284 Translation Transceiver IC 20-SSOP
IEEE STD 1284 Translation Transceiver
4.5 V
5.5 V
70 °C
0 °C
Surface Mount
20-SSOP
0.0052999998442828655 m, 0.005308600142598152 m
20-SSOP
Texas Instruments
SN74ACT1284DWR
IEEE STD 1284 Translation Transceiver IC 20-SOIC
IEEE STD 1284 Translation Transceiver
4.5 V
5.5 V
70 °C
0 °C
Surface Mount
20-SOIC
0.007493000011891127 m, 0.007499999832361937 m
20-SOIC
Texas Instruments
SN74ACT1284PWE4
IEEE STD 1284 Translation Transceiver IC 20-TSSOP
IEEE STD 1284 Translation Transceiver
4.5 V
5.5 V
70 °C
0 °C
Surface Mount
20-TSSOP
0.004394200164824724 m
20-TSSOP
0.004399999976158142 m

Key Features

4.5-V to 5.5-V VCCOperationInputs Accept Voltages to 5.5 VMax tpdof 20 ns at 5 V3-State Outputs Directly Drive Bus LinesFlow-Through Architecture Optimizes PCB LayoutCenter-Pin VCCand GND Configurations Minimize High-Speed Switching NoiseESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)Designed for the IEEE 1284-I (Level-1 Type) and IEEE 1284-II (Level-2 Type) Electrical Specifications4.5-V to 5.5-V VCCOperationInputs Accept Voltages to 5.5 VMax tpdof 20 ns at 5 V3-State Outputs Directly Drive Bus LinesFlow-Through Architecture Optimizes PCB LayoutCenter-Pin VCCand GND Configurations Minimize High-Speed Switching NoiseESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)Designed for the IEEE 1284-I (Level-1 Type) and IEEE 1284-II (Level-2 Type) Electrical Specifications

Description

AI
The ’ACT1284 devices are designed for asynchronous two-way communication between data buses. The control function minimizes external timing requirements. The devices allow data transmission in either the A-to-B or the B-to-A direction for bits 1, 2, 3, and 4, depending on the logic level at the direction-control (DIR) input. Bits 5, 6, and 7, however, always transmit in the A-to-B direction. The output drive for each mode is determined by the high-drive (HD) control pin. When HD is high, the high drive is delivered by the totem-pole configuration, and when HD is low, the outputs are open drain. This meets the drive requirements as specified in the IEEE 1284-I (level-1 type) and the IEEE 1284-II (level-2 type) parallel peripheral-interface specification. The ’ACT1284 devices are designed for asynchronous two-way communication between data buses. The control function minimizes external timing requirements. The devices allow data transmission in either the A-to-B or the B-to-A direction for bits 1, 2, 3, and 4, depending on the logic level at the direction-control (DIR) input. Bits 5, 6, and 7, however, always transmit in the A-to-B direction. The output drive for each mode is determined by the high-drive (HD) control pin. When HD is high, the high drive is delivered by the totem-pole configuration, and when HD is low, the outputs are open drain. This meets the drive requirements as specified in the IEEE 1284-I (level-1 type) and the IEEE 1284-II (level-2 type) parallel peripheral-interface specification.