Duane Morris LLP
Post driver for high density integrated circuits
A post driver implemented using core device transistors to drive an output connection between the high and low voltage levels of an I/O voltage range. The post driver is made from a plurality of core devices operable within a core voltage range that is less than the I/O voltage range. The plurality of core devices is cascaded between upper and lower power connections set to the full I/O voltage range. The post driver has a voltage clamping element, such as a diode, having a predefined threshold voltage and connected to the core devices so as to maintain the voltage difference across the terminals thereof within the core voltage range.
Taiwan Semiconductor Manufacturing Co., Ltd.
H G H G
H03K G11C H03K G11C
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Ruey-Bin Tien-Chien
Sheen Huang