HV7224数据手册集成电路（IC）的移位寄存器规格书PDF

描述 Description

The HV7224 is a low-voltage serial to high-voltage parallel converter with push-pull outputs. It is especially suitable for use as a symmetric row driver in AC thin-film electroluminescent (ACTFEL) displays.When the data reset pin (DRIOA/DRIOB) is at logic high, it will reset all the outputs of the internal shift register to zero. At the same time, the output of the shift register will start shifting a logic high from the least significant bit to the most significant bit. The DRIOA/DRIOB can be triggered at any time. The DIR and SHIFT pins control the direction of data shift through the device. When DIR is at logic high, DRIOA is the input and DRIOB is the output. When DIR is grounded, DRIOB is the input and the DRIOA is the output. See the Output Sequence Operation Table for output sequence. The POL and OE pins perform the polarity select and output enable function respectively. Data is loaded on the low to high transition of the clock. A logic high will cause the output to swing to VPP if POL is high, or to GND if POL is low. All outputs will be in High-Z state if OE is at logic high. Data output buffers are provided for cascading devices.

特性 Features

• HVCMOS® technology
• Symmetric row drive (reduces latent imaging in ACTFEL displays)
• Output voltage up to +240V
• Low power level shifting
• Source/sink current minimum 70mA
• Shift register speed 3.0MHz
• Pin-programmable shift direction (DIR, SHIFT)

简介

HV7224属于集成电路（IC）的移位寄存器。由制造生产的HV7224移位寄存器移位寄存器是低级逻辑器件，通常用于在串行和并行方式之间转换数字逻辑信号形式的数据，或在数字字内移动数据位的位置。移位寄存器通常使用集成到一个设备中的一组触发器来实现，常用于集成度更高的逻辑器件，但仍可用于 I/O 扩展等应用，在这些应用中离散形式的函数可能会非常有用。