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74FCT646 Series

Octal Registered Bus Transceivers with 3-State Outputs

Manufacturer: Texas Instruments

Catalog(9 parts)

PartVoltage - Supply▲▼Voltage - Supply▲▼Output TypeNumber of Bits per Element▲▼Package / CaseNumber of Elements▲▼Current - Output High, Low▲▼Mounting TypeOperating Temperature▲▼Operating Temperature▲▼Supplier Device PackagePackage / Case▲▼Package / Case▲▼
Texas Instruments
CY74FCT646TQCTG4
Transceiver, Non-Inverting 1 Element 8 Bit per Element 3-State Output 24-SSOP
4.75 V
5.25 V
3-State
8 ul
24-SSOP
1 ul
0.03200000151991844 A, 0.06400000303983688 A
Surface Mount
85 °C
-40 °C
24-SSOP
Texas Instruments
CY74FCT646ATSOCT
Transceiver, Non-Inverting 1 Element 8 Bit per Element 3-State Output 24-SOIC
4.75 V
5.25 V
3-State
8 ul
24-SOIC
1 ul
0.03200000151991844 A, 0.06400000303983688 A
Surface Mount
85 °C
-40 °C
24-SOIC
0.007499999832361937 m
0.007493000011891127 m
Texas Instruments
CD74FCT646EN
Element Bit per Element Output
Texas Instruments
CY74FCT646TQCTE4
Transceiver, Non-Inverting 1 Element 8 Bit per Element 3-State Output 24-SSOP
4.75 V
5.25 V
3-State
8 ul
24-SSOP
1 ul
0.03200000151991844 A, 0.06400000303983688 A
Surface Mount
85 °C
-40 °C
24-SSOP
Texas Instruments
CY74FCT646TSOCT
Transceiver, Non-Inverting 1 Element 8 Bit per Element 3-State Output 24-SOIC
4.75 V
5.25 V
3-State
8 ul
24-SOIC
1 ul
0.03200000151991844 A, 0.06400000303983688 A
Surface Mount
85 °C
-40 °C
24-SOIC
0.007499999832361937 m
0.007493000011891127 m
Texas Instruments
CY74FCT646ATSOCTE4
Transceiver, Non-Inverting 1 Element 8 Bit per Element 3-State Output 24-SOIC
4.75 V
5.25 V
3-State
8 ul
24-SOIC
1 ul
0.03200000151991844 A, 0.06400000303983688 A
Surface Mount
85 °C
-40 °C
24-SOIC
0.007499999832361937 m
0.007493000011891127 m
Texas Instruments
CY74FCT646TSOC
Transceiver, Non-Inverting 1 Element 8 Bit per Element 3-State Output 24-SOIC
4.75 V
5.25 V
3-State
8 ul
24-SOIC
1 ul
0.03200000151991844 A, 0.06400000303983688 A
Surface Mount
85 °C
-40 °C
24-SOIC
0.007499999832361937 m
0.007493000011891127 m
Texas Instruments
CY74FCT646ATSOC
Transceiver, Non-Inverting 1 Element 8 Bit per Element 3-State Output 24-SOIC
4.75 V
5.25 V
3-State
8 ul
24-SOIC
1 ul
0.03200000151991844 A, 0.06400000303983688 A
Surface Mount
85 °C
-40 °C
24-SOIC
0.007499999832361937 m
0.007493000011891127 m
Texas Instruments
CY74FCT646TQCT
Transceiver, Non-Inverting 1 Element 8 Bit per Element 3-State Output 24-SSOP
4.75 V
5.25 V
3-State
8 ul
24-SSOP
1 ul
0.03200000151991844 A, 0.06400000303983688 A
Surface Mount
85 °C
-40 °C
24-SSOP

Key Features

• Function, Pinout, and Drive Compatible With FCT and F LogicReduced VOH(Typically = 3.3 V) Versions of Equivalent FCT FunctionsEdge-Rate Control Circuitry for Significantly Improved Noise CharacteristicsIoffSupports Partial-Power-Down Mode OperationMatched Rise and Fall TimesFully Compatible With TTL Input and Output Logic LevelsESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)1000-V Charged-Device Model (C101)Independent Register for A and B BusesCY54FCT646T48-mA Output Sink Current12-mA Output Source CurrentCY74FCT646T64-mA Output Sink Current32-mA Output Source Current3-State OutputsFunction, Pinout, and Drive Compatible With FCT and F LogicReduced VOH(Typically = 3.3 V) Versions of Equivalent FCT FunctionsEdge-Rate Control Circuitry for Significantly Improved Noise CharacteristicsIoffSupports Partial-Power-Down Mode OperationMatched Rise and Fall TimesFully Compatible With TTL Input and Output Logic LevelsESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)1000-V Charged-Device Model (C101)Independent Register for A and B BusesCY54FCT646T48-mA Output Sink Current12-mA Output Source CurrentCY74FCT646T64-mA Output Sink Current32-mA Output Source Current3-State Outputs

Description

AI
The \x92FCT646T devices consist of a bus transceiver circuit with 3-state, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers. Data on the A or B bus is clocked into the registers as the appropriate clock pin goes to a high logic level. Output-enable (G\) and direction (DIR) inputs control the transceiver function. In the transceiver mode,data present at the high-impedance port can be stored in either the A or B register, or in both. Select controls (SAB, SBA) can multiplex stored and real-time (transparent mode) data. DIR determines which bus receives data when G\ is low. In the isolation mode (G\ is high), A data can be stored in the B register and/or B data can be stored in the A register. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The \x92FCT646T devices consist of a bus transceiver circuit with 3-state, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers. Data on the A or B bus is clocked into the registers as the appropriate clock pin goes to a high logic level. Output-enable (G\) and direction (DIR) inputs control the transceiver function. In the transceiver mode,data present at the high-impedance port can be stored in either the A or B register, or in both. Select controls (SAB, SBA) can multiplex stored and real-time (transparent mode) data. DIR determines which bus receives data when G\ is low. In the isolation mode (G\ is high), A data can be stored in the B register and/or B data can be stored in the A register. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.