HV5308

HV5308 / HV5408 32-Channel, Serial-to-Parallel Converter with High-Voltage Push-Pull Outputs Features Processed with High-Voltage CMOS technology Low power-level shifting Source/sink current minimum 20mA Shift register speed 8.0 MHz Latched data outputs CMOS compatible inputs Forward and reverse shifting options Diode to VPP allows efficient power recovery Description HV5308 and HV5408 are low-voltage serial to highvoltage parallel converters with push-pull outputs. These devices have been designed for use as a driver for AC-electroluminescent displays. HV5308 / HV5408 can also be used in any application requiring multiple output high-voltage, current sourcing, and sinking capabilities such as driving plasma panels, vacuum fluorescent, or large matrix LCD displays. These devices consist of a 32-bit shift register, 32 latches, and control logic to enable outputs. Data is shifted through the shift register on the low-to-high transition of the clock. HV5308 shifts in the clockwise direction, when viewed from the top of the package, and HV5408 shifts in the counter-clockwise direction. A data output buffer is provided for cascading devices. This output reflects the current status of the last bit of the shift register (32). Operation of the shift register is not affected by the LE (latch enable) or the OE (output enable) inputs. Transfer of data from the shift register to the latch occurs when the LE input is high. The data in the latch is retained when LE is low...