- 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 型触发器
- 功能描述：具有三态输出的 9 位总线接口触发器
- 点击这里打开及下载SN54AS823A的技术文档资料
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These 9-bit flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. These devices are particularly suitable for implementing wider buffer registers, I/O ports, bidirectional bus drivers, parity bus interfacing, and working registers.
With the clock-enable (
) input low, the nine D-type edge-triggered flip-flops enter data on the low-to-high transitions of the clock (CLK) input. Taking high disables the clock buffer, latching the outputs. The SN54AS823A and SN74AS823A have noninverting data (D) inputs and the SN74AS824A has inverting (D\) inputs. Taking the clear (
) input low causes the nine Q outputs to go low independently of the clock.
A buffered output-enable (
) input can be used to place the nine outputs in either a normal logic state (high or low logic level) or the high-
impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components.
does not affect the internal operation of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.
The SN54AS823A is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74AS823A and SN74AS824A are characterized for operation from 0°C to 70°C.
- Functionally Equivalent to AMD's AM29823 and AM29824
- Provide Extra Data Width Necessary for Wider Address/Data Paths or Buses With Parity
- Outputs Have Undershoot-Protection Circuitry
- Power-Up High-Impedance State
- Buffered Control Inputs to Reduce dc Loading Effects
- Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (NT) and Ceramic (JT) 300-mil DIPs
- Number of channels (#)
- 9
- 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)
- -24
- ICC (Max) (uA)
- 103000
- Features
- High speed (tpd 10-50ns)
SN54AS823A的完整型号有：5962-8952501LA、SNJ54AS823AJT，以下是这些产品的关键参数及官网采购报价：
5962-8952501LA，工作温度：-55 to 125，封装：CDIP (JT)-24，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-8952501LA的批量USD价格：22.145（1000+）
SNJ54AS823AJT，工作温度：-55 to 125，封装：CDIP (JT)-24，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网SNJ54AS823AJT的批量USD价格：22.145（1000+）
5962-8952501LA，工作温度：-55 to 125，封装：CDIP (JT)-24，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-8952501LA的批量USD价格：22.145（1000+）
SNJ54AS823AJT，工作温度：-55 to 125，封装：CDIP (JT)-24，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网SNJ54AS823AJT的批量USD价格：22.145（1000+）
