- 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 - 计数器
- 功能描述：汽车类双路 4 位同步二进制计数器
- 点击这里打开及下载SN74LV393A-Q1的技术文档资料
- TI代理渠道，提供当日发货、严格的质量标准，满足您的目标价格
The SN74LV393A contains eight flip-flops and additional gating to implement two individual 4-bit counters in a single package. This device is designed for 2-V to 5.5-V VCC operation.
This device comprises two independent 4-bit binary counters, each having a clear (CLR)\ and a clock (CLK) input. The device changes state on the negative-going transition of the CLK pulse. N-bit binary counters can be implemented with each package, providing the capability of divide by 256. The SN74LV393A has parallel outputs from each counter stage so that any submultiple of the input count frequency is available for system timing signals.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
- Qualified for Automotive Applications
- ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
- 2-V to 5.5-V VCC Operation
- Max tpd of 9.5 ns at 5 V
- Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 3.3 V, TA = 25°C
- Typical VOHV (Output VOH Undershoot) >2.3 V at VCC = 3.3 V, TA = 25°C
- Ioff Supports Partial-Power-Down-Mode Operation
- Dual 4-Bit Binary Counters With Individual Clocks
- Direct Clear for Each 4-Bit Counter
- Can Significantly Improve System Densities by Reducing Counter Package Count by 50 Percent
- Function
- Counter
- Bits (#)
- 4
- Technology Family
- LV-A
- Supply voltage (Min) (V)
- 2
- Supply voltage (Max) (V)
- 5.5
- Input type
- Standard CMOS
- Output type
- Push-Pull
- Features
- Balanced outputs, Very high speed (tpd 5-10ns), Over-voltage tolerant inputs, Partial power down (Ioff)
SN74LV393A-Q1的完整型号有：SN74LV393ATPWRG4Q1、SN74LV393ATPWRQ1，以下是这些产品的关键参数及官网采购报价：
SN74LV393ATPWRG4Q1，工作温度：-40 to 105，封装：TSSOP (PW)-14，包装数量MPQ：2000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SN74LV393ATPWRG4Q1的批量USD价格：0.395（1000+）
SN74LV393ATPWRQ1，工作温度：-40 to 105，封装：TSSOP (PW)-14，包装数量MPQ：2000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SN74LV393ATPWRQ1的批量USD价格：0.35（1000+）
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。
TIDA-00580 — 汽车级 16 位旋转正交解码器参考设计
人们在许多情况下都喜欢通过触摸屏使用旋钮。该解决方案最大程度减少了为了监测旋转正交编码器的旋转方向和距离而需要与微处理器进行的连接。
