SN74LV4040A - 12 位异步二进制计数器

SN74LV4040A是TI德州仪器公司的一款计数器/算术/奇偶校验功能产品，SN74LV4040A是12 位异步二进制计数器，本站介绍了SN74LV4040A的封装应用图解、特点和优点、功能等，并给出了与SN74LV4040A相关的TI元器件型号供参考。

SN74LV4040A - 12 位异步二进制计数器 - 计数器/算术/奇偶校验功能 - 特殊逻辑 - 德州仪器

产品描述

The ’LV4040A devices are 12-bit asynchronous binary counters with the outputs of all stages available externally. A high level at the clear (CLR) input asynchronously clears the counter and resets all outputs low. The count is advanced on a high-to-low transition at the clock (CLK) input. Applications include time-delay circuits, counter controls, and frequency-dividing circuits.

These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down.

产品特性

2-V to 5.5-V VCC Operation
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
Supports Mixed-Mode Voltage Operation on All Ports
High On-Off Output-Voltage Ratio
Low Crosstalk Between Switches
Individual Switch Controls
Extremely Low Input Current
Ioff Supports Partial-Power-Down Mode Operation
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)

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