SN74AS573A_TI 具有三态输出的八路 D 类透明锁存器

SN74AS573A的基本参数

制造厂商：TI
产品类别：逻辑和电压转换
技术类目：触发器、锁存器和寄存器 - D 型锁存器
功能描述：具有三态输出的八路 D 类透明锁存器
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SN74AS573A的产品详情：

These octal D-type transparent latches feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

While the latch-enable (LE) input is high, outputs (Q) respond to the data (D) inputs. When LE is low, the outputs are latched to retain the data that was set up.

A buffered output-enable () input can be used to place the eight outputs in either a normal logic state (high or low) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and the increased drive provide the capability to drive bus lines without interface or pullup components.

does not affect internal operation of the latches. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

The SN54ALS573C and SN54AS573A are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS573C and SN74AS573A are characterized for operation from 0°C to 70°C.

SN74AS573A的优势和特性：

3-State Buffer-Type Outputs Drive Bus Lines Directly
Bus-Structured Pinout
True Logic Outputs
Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), Standard Plastic (N) and Ceramic (J) 300-mil DIPs, and Ceramic Flat (W) Packages

SN74AS573A的参数（英文）：

Number of channels (#)
8
Technology Family
AS
Supply voltage (Min) (V)
4.5
Supply voltage (Max) (V)
5.5
Input type
Bipolar
Output type
3-State
Clock Frequency (Max) (MHz)
125
IOL (Max) (mA)
48
IOH (Max) (mA)
-15
ICC (Max) (uA)
106000
Features
Very high speed (tpd 5-10ns), Flow-through pinout

SN74AS573A具体的完整产品型号参数及价格（美元）：

SN74AS573A的完整型号有：SN74AS573ADW、SN74AS573AN，以下是这些产品的关键参数及官网采购报价：

SN74AS573ADW，工作温度：0 to 70，封装：SOIC (DW)-20，包装数量MPQ：25个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网SN74AS573ADW的批量USD价格：1.735（1000+）

SN74AS573AN，工作温度：0 to 70，封装：PDIP (N)-20，包装数量MPQ：20个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：NIPDAU，TI官网SN74AS573AN的批量USD价格：1.995（1000+）

SN74AS573A的评估套件：

14-24-LOGIC-EVM — 支持 14 到 24 引脚 PW、DB、D、DW、NS、DYY 和 DGV 封装的通用逻辑 EVM

该 EVM 设计用于支持采用 14 至 24 引脚 D、DW、DB、NS、PW、DYY 或 DGV 封装的任何逻辑器件。

SN74AS573A的电路图解：

SN74AS573A的评估套件：