
CY74FCT2373T Series
Octal D-Type Transparent Latches with 3-State Outputs and Series Damping Resistors
Manufacturer: Texas Instruments
Catalog
Octal D-Type Transparent Latches with 3-State Outputs and Series Damping Resistors
Key Features
• Function and Pinout Compatible With the Fastest Bipolar Logic25-Output Series Resistors Reduce Transmission-Line Reflection NoiseReduced VOH(Typically = 3.3 V) Version of Equivalent FCT FunctionsEdge-Rate Control Circuitry for Significantly Improved Noise CharacteristicsIoffSupports Partial-Power-Down Mode OperationMatched Rise and Fall Times3-State OutputsESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)1000-V Charged-Device Model (C101)Fully Compatible With TTL Input and Output Logic Levels12-mA Output Sink Current15-mA Output Source CurrentFunction and Pinout Compatible With the Fastest Bipolar Logic25-Output Series Resistors Reduce Transmission-Line Reflection NoiseReduced VOH(Typically = 3.3 V) Version of Equivalent FCT FunctionsEdge-Rate Control Circuitry for Significantly Improved Noise CharacteristicsIoffSupports Partial-Power-Down Mode OperationMatched Rise and Fall Times3-State OutputsESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)1000-V Charged-Device Model (C101)Fully Compatible With TTL Input and Output Logic Levels12-mA Output Sink Current15-mA Output Source Current
Description
AI
The CY74FCT2373T is an 8-bit, high-speed CMOS, TTL-compatible buffered latch with 3-state outputs that is ideal for driving high-capacitance loads, such as memory and address buffers. On-chip 25-termination resistors at the outputs reduce system noise caused by reflections. The CY74FCT2373T can replace the CY74FCT373T to reduce noise in an existing design.
When the latch-enable (LE) input is high, the flip-flops appear transparent to the data. Data that meets the required setup times are latched when LE transitions from high to low. Data appears on the bus when the output-enable (OE\) input is low. When OE\ is high, the bus output is in the high-impedance state. In this mode, data can be entered into the latches.
This device is 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 CY74FCT2373T is an 8-bit, high-speed CMOS, TTL-compatible buffered latch with 3-state outputs that is ideal for driving high-capacitance loads, such as memory and address buffers. On-chip 25-termination resistors at the outputs reduce system noise caused by reflections. The CY74FCT2373T can replace the CY74FCT373T to reduce noise in an existing design.
When the latch-enable (LE) input is high, the flip-flops appear transparent to the data. Data that meets the required setup times are latched when LE transitions from high to low. Data appears on the bus when the output-enable (OE\) input is low. When OE\ is high, the bus output is in the high-impedance state. In this mode, data can be entered into the latches.
This device is 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.