HV9708 32-Channel Serial to Parallel Converter With High Voltage Push-Pull Outputs General Description Features The HV9708 is a low voltage serial to high voltage parallel Processed with HVCMOS technology converters with push-pull outputs. This device has been designed Output voltages up to 80V for use as a driver for AC-electroluminescent displays.It can also Low power level shifting be used in any application requiring multiple output, high voltage Shift register speed 8.0MHz current sourcing and sinking capabilities such as driving plasma Latched data outputs panels, vacuum uorescent, or large matrix LCD displays. The inputs are fully CMOS compatible. 5.0V CMOS compatible inputs Forward and reverse shifting options This device consists of a 32-bit shift register, 32 latches, and Diode to V allows efcient power recovery PP control logic to perform the polarity select and blanking of the outputs. HV 1 is connected to the rst stage of the shift register OUT through the polarity and blanking logic. Data is shifted through the shift register on the logic low to high transition of the clock. The HV9708 shifts data in the clockwise direction when viewed from the top of the package. A data output buffer is provided for cascading devices.This output reects the current status of the last bit of the shift register (HV 32). Operation of the shift OUT register is not affected by the LE (latch enable), BL (blanking), or the POL (polarity) in-puts. Transfer of data from the shift register to the latch occurs when the LE (latch enable) input is high. The data in the latch is stored when LE is low. Block Diagram VPP Polarity Blanking Latch Enable HV 1 OUT Data Input Latch Clock HV 2 OUT Latch 32-Bit Shift (Outputs 3 to 30 Register not shown) HV 31 OUT Latch HV 32 OUT Data Out LatchHV9708 Pin Congurations Ordering Information 6 1 44 40 Package Options 44-Lead Quad Device Plastic Chip Carrier .653x.653in body .180in height (max) 050in pitch HV9708 HV9708PJ-G -G indicates package is RoHS compliant (Green) 44-Lead Quad Plastic Chip Carrier (PJ) Product Marking Top Marking YY = Year Sealed YYWW WW = Week Sealed HV9708PJ Absolute Maximum Ratings LLLLLLLLLL L = Lot Number C = Country of Origin* Parameter Value Bottom Marking A = Assembler ID* = Green Packaging Supply voltage, V -0.5V to +7.0V CCCCCCCCCCC DD AAA *May be part of top marking Supply voltage, V -0.5V to +90V PP 44-Lead Quad Plastic Chip Carrier (PJ) Logic input levels -0.5V to V +0.5V DD 1 Ground current 1.5A 2 Continuous total power dissipation 1200W O Operating temperature range -40 to +85 C O Storage temperature range -65 to +150 C 3 O Lead temperature 260 C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Continuous operation of the device at the absolute rating level may affect device reliability. All voltages are referenced to device ground. Notes: 1. Duty cycle is limited by the total power dissipated in the package. 2. For operation above 25C ambient derate linearly to maximum operatin temperature at 20mW/C. 3. 1.6mm (1/16 inch) from case for 10 seconds Recommended Operating Conditions Sym Parameter Min Max Units V Logic voltage supply 4.5 5.5 V DD V High voltage supply 8.0 80 V PP V Input high voltage V -0.5 V V IH DD DD V Input low voltage 0 0.5 V IL f Clock frequency 0 8.0 MHz CLK O T Operating free-air temperature -40 +85 C A 2