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 20SOIC
- Series：74ACT
- Mfr：Texas Instruments
- Package：Tube
- 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：6ns
- Current - Output High, Low：24mA, 24mA
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：20-SOIC
- Grade：-
- Qualification：-
Download product information
Overview
The SN74ACT573DW is an octal D-type transparent latch with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.5V to 5.5V and accepts input voltages up to 5.5V. The device features a maximum propagation delay of 9.5ns at 5V and provides TTL-voltage compatible inputs. Designed for driving highly capacitive or low-impedance loads, it utilizes a 20-pin SOIC package.
Feature Summary
- Features 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads.
- Inputs are TTL-voltage compatible and accept voltages up to the maximum VCC rating.
- Includes buffered output-enable (OE) input to place outputs in high-impedance state without affecting internal latch operations.
Applications
- Parallel data storage
- Digital bus buffer
Procurement Notes
Verify the specific ordering suffix against the current Package Option Addendum to confirm production status and material type. The standard DW package designation may be obsolete; ensure the selected variant matches the required lead finish, moisture sensitivity level, and operating temperature range for the intended design implementation.
Selection Notes
Select this component when a wide supply voltage range of 4.5V to 5.5V is required alongside TTL-compatible inputs. The ACT series offers faster switching speeds compared to standard LS logic while maintaining CMOS low power characteristics. Ensure the application benefits from the high drive capability suitable for bus systems.
Part Context
This part belongs to the SNx4ACT573 family of octal D-type transparent latches with 3-state outputs. The family includes military-grade SN54 variants and automotive-qualified SN74ACT573-Q1 versions. Other package options include SSOP, PDIP, TSSOP, and VQFN formats within the same logical family.
Replacement Considerations
SN74ACT573DWR
FAQ
How does the Output Enable (OE) pin affect the latch operation?
The OE pin controls the output state but does not affect the internal operation of the latches. Old data can be retained or new data entered while the outputs are in the high-impedance state.
What is the function of the Latch Enable (LE) input?
When LE is high, the Q outputs follow the D inputs. When LE goes low, the Q outputs are latched at the logic levels present at the D inputs.
