SN54LS173A_TI 具有三态输出的 4 位 D 类寄存器

SN54LS173A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 型触发器
功能描述：具有三态输出的 4 位 D 类寄存器
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SN54LS173A的产品详情：

The '173 and 'LS173A 4-bit registers include D-type flip-flops featuring totem-pole 3-state outputs capable of driving highly capacitive
or relatively low-impedance loads. The high-impedance third state and increased high-logic-level drive provide these flip-flops with the capability of being connected directly to and driving the bus lines in a bus-organized system without need for interface or pull-up components. Up to 128 of the SN74173 or SN74LS173A outputs can be connected to a common bus and still drive two Series 54/74 or 54LS/74LS TTL normalized loads, respectively. Similarly, up to 49 of the SN54173 or SN54LS173A outputs can be connected to a common bus and drive one additional Series 54/74 or 54LS/74LS TTL normalized load, respectively. To minimize the possibility that two outputs will attempt to take a common bus to opposite logic levels, the output control circuitry is designed so that the average output disable times are shorter than the average output enable times.

Gated enable inputs are provided on these devices for controlling the entry of data into the flip-flops. When both data-enable (G\1, G\2) inputs are low, data at the D inputs are loaded into their respective flip-flops on the next positive transition of the buffered clock input. Gate output-control (M, N) inputs also are provided. When both are low, the normal logic states (high or low levels) of the four outputs are available for driving the loads or bus lines. The outputs are disabled independently from the level of the clock by a high logic level at either output-control input. The outputs then present a high impedance and neither load nor drive the bus line. Detailed operation is given in the function table.

The SN54173 and SN54LS173A are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74173 and SN74LS173A are characterized for operation from 0°C to 70°C.

SN54LS173A的优势和特性：

3-State Outputs Interface Directly With System Bus
Gated Output-Control LInes for Enabling or Disabling the Outputs
Fully Independent Clock Virtually Eliminates Restrictions for Operating in One of Two Modes:
- Parallel Load
- Do Nothing (Hold)
For Application as Bus Buffer Registers
Package Options Include Plastic Small-Outline (D) Packages, Ceramic Flat (W) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) DIPs

SN54LS173A的参数（英文）：

Number of channels (#)
4
Technology Family
LS
Supply voltage (Min) (V)
4.5
Supply voltage (Max) (V)
5.5
Input type
Bipolar
Output type
3-State
Clock Frequency (Max) (MHz)
35
IOL (Max) (mA)
24
IOH (Max) (mA)
-2.6
ICC (Max) (uA)
24000
Features
High speed (tpd 10-50ns)

SN54LS173A具体的完整产品型号参数及价格（美元）：

SN54LS173A的完整型号有：JM38510/36101BEA、JM38510/36101BFA、M38510/36101BEA、M38510/36101BFA、SN54LS173AJ、SNJ54LS173AFK、SNJ54LS173AJ，以下是这些产品的关键参数及官网采购报价：

JM38510/36101BEA，工作温度：-55 to 125，封装：CDIP (J)-16，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JM38510/36101BEA的批量USD价格：12.476（1000+）

JM38510/36101BFA，工作温度：-55 to 125，封装：CFP (W)-16，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JM38510/36101BFA的批量USD价格：19.597（1000+）

M38510/36101BEA，工作温度：-55 to 125，封装：CDIP (J)-16，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M38510/36101BEA的批量USD价格：12.476（1000+）

M38510/36101BFA，工作温度：-55 to 125，封装：CFP (W)-16，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M38510/36101BFA的批量USD价格：19.597（1000+）

SN54LS173AJ，工作温度：-55 to 125，封装：CDIP (J)-16，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SN54LS173AJ的批量USD价格：7.188（1000+）

SNJ54LS173AFK，工作温度：-55 to 125，封装：LCCC (FK)-20，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SNJ54LS173AFK的批量USD价格：14.427（1000+）

SNJ54LS173AJ，工作温度：-55 to 125，封装：CDIP (J)-16，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SNJ54LS173AJ的批量USD价格：7.333（1000+）

SN54LS173A的评估套件：

SN54LS173A的电路图解：

SN54LS173A的评估套件：