- 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 8 位总线接口触发器
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These 8-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 multiuser registers, I/O ports, bidirectional bus drivers, and working registers.
With the clock-enable (
) input low, the eight 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. These devices have noninverting data (D) inputs. Taking the clear (
) input low causes the eight Q outputs to go low independently of the clock.
Multiuser buffered output-enable (
,
, and 
) inputs can be used to place the eight outputs in either a normal logic state (high or low logic level) 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 increased drive provide the capability to drive bus lines without interface or pullup components.
The output enables do 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 SN54AS825A is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74AS825A is characterized for operation from 0°C to 70°C.
= H if any of OE1\, OE2\, or OE3\ are high.
= L if all of OE1\, OE2\, or OE3\ are low.
- Functionally Equivalent to AMD's AM29825
- Improved IOH Specifications
- Multiple Output Enables Allow Multiuser Control of the Interface
- Outputs Have Undershoot-Protection Circuitry
- Power-Up High-Impedance State
- Buffered Control Inputs Reduce dcLoading 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 (#)
- 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)
- -24
- ICC (Max) (uA)
- 90000
- Features
- High speed (tpd 10-50ns)
SN54AS825A的完整型号有：5962-9078003M3A、SNJ54AS825AFK，以下是这些产品的关键参数及官网采购报价：
5962-9078003M3A，工作温度：-55 to 125，封装：LCCC (FK)-28，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5962-9078003M3A的批量USD价格：24.572（1000+）
SNJ54AS825AFK，工作温度：-55 to 125，封装：LCCC (FK)-28，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SNJ54AS825AFK的批量USD价格：24.572（1000+）
5962-9078003M3A，工作温度：-55 to 125，封装：LCCC (FK)-28，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5962-9078003M3A的批量USD价格：24.572（1000+）
SNJ54AS825AFK，工作温度：-55 to 125，封装：LCCC (FK)-28，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SNJ54AS825AFK的批量USD价格：24.572（1000+）
