ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC D-TYPE TRANSP SGL 8:8 20SO
- Series：74ABT
- Mfr：NXP USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Logic Type：D-Type Transparent Latch
- Circuit：8:08
- Output Type：Tri-State
- Voltage - Supply：4.5V ~ 5.5V
- Independent Circuits：1
- Delay Time - Propagation：3.3ns
- Current - Output High, Low：32mA, 64mA
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：20-SO
- Grade：-
- Qualification：-
Download product information
Overview
The 74ABT573AD,118 is an octal D-type transparent latch with 3-State outputs manufactured by NXP USA Inc. It operates on a 4.5V to 5.5V supply within a -40°C to +85°C temperature range. The device features a flow-through pinout in a 20-pin plastic SO package (SOT163-1). Propagation delays from data inputs to outputs range from 2.8ns to 4.8ns at 25°C and up to 5.3ns across the full operating temperature range.
Feature Summary
- Flow-through pinout configuration facilitates PC board layout and microprocessor interfacing.
- Independent control of latch operation via Enable input and 3-State buffer output via Output Enable input.
- High-output drive capability designed for heavily loaded 3-State buses and MOS memories.
Applications
- Driving heavily loaded 3-State buses
- Interfacing with MOS memories
- Connecting to MOS microprocessors
Procurement Notes
Verify the specific ordering suffix 'AD' corresponds to the 20-pin plastic SO package (SOT163-1) as defined in the Philips/NXP specification. Confirm that the manufacturer designation aligns with current NXP USA Inc. product lines, as historical documentation references Philips Semiconductors. Ensure the component meets the required -40°C to +85°C ambient operating temperature range for your application environment.
Selection Notes
Select this component when a high-speed BiCMOS latch with flow-through pinout is required for direct microprocessor interface. It is suitable for applications needing independent control of latching and bus tri-stating. Consider the 2.8ns typical propagation delay and high output drive currents (-32mA/64mA) for driving heavy loads or long traces compared to standard TTL equivalents.
Part Context
This device belongs to the 74ABT logic family, characterized by high performance and low power dissipation. It is functionally identical to the 74ABT373 but utilizes a flow-through pinout arrangement. This configuration places inputs and outputs on opposite sides of the package, simplifying printed circuit board routing for parallel data transfer applications.
Replacement Considerations
The 74ABT373 serves as the functional equivalent with a non-flow-through pinout. For alternative packages, the 74ABT573A DB (SSOP) and 74ABT573A PW (TSSOP) are available within the same series.
FAQ
How does the 74ABT573A differ from the 74ABT373?
The 74ABT573A is functionally identical to the 74ABT373 but features a flow-through pinout configuration, whereas the 74ABT373 has a different pin arrangement.
What controls the 3-State outputs independently of the latch?
The active-Low Output Enable (OE) input controls all eight 3-State buffers independently of the latch operation. When OE is High, the outputs enter a high-impedance state.
