Patent ID: 6191616
Filing Date: 2001-02-20
Classification: H03K

Abstract:
An integrated circuit memory device comprising:a voltage supply connection to receive a first voltage (Vcc);a voltage pump circuit to provide a second voltage (Vccp) on a Vccp node, the second voltage is greater than the first voltage; anda voltage level translator circuit comprising:an input node;a first N-channel transistor having a source node coupled to a ground voltage node, a drain node, and a gate node coupled to the input node;a second N-channel transistor having a source node coupled to the drain node of the first N-channel transistor, a drain node, and a gate node coupled to the voltage supply connection;a third N-channel transistor having a source node coupled to the input node, a drain node, and a gate node coupled to the voltage supply connection;a fourth N-channel transistor having a source node coupled to the drain node of the third N-channel transistor, a drain node, and a gate node coupled to the Vccp node;a first P-channel transistor having a source node coupled to the Vccp node, a drain node coupled to a drain node of the second N-channel transistor, and a gate node coupled to the drain node of the fourth N-channel transistor;a second P-channel transistor having a source node coupled to the Vccp node, a drain node coupled to a drain node of the fourth N-channel transistor, and a gate node coupled to the drain node of the second N-channel transistor;a third P-channel transistor having a source node coupled to the Vccp node, a drain node coupled to an output node of the voltage level translator circuit, and a gate node coupled to the drain node of the first P-channel transistor;a fourth P-channel transistor having a source node coupled to the output node, a drain node, and a gate node coupled to the gate node of the first P-channel transistor; anda fifth N-channel transistor having a source node coupled to the voltage supply connection, a drain node coupled to the drain node of the fourth P-channel transistor, and a gate node coupled to the Vccp node.