Single element security fusible link

Details Single element security fusible link Single element security fusible link

1993-09-08

1994-05-03

Clawson, Jr., Joseph E.

Static information storage and retrieval

Read/write circuit

Plural use of terminal

365201, 3652257, 3072021, 3072965, 3073031, 307465, 307565, G11C 700

Patent

active

053093941

ABSTRACT:
An I/O circuit including first and second I/O pads, a fuse connected between the first pad and a RAM write enable line, and a diode-connected transistor connected between the RAM write enable line and second pad. Data is written to the RAM by applying a voltage potential to the pads after which the fuse is blown by increasing the potential difference. Other forms of the invention include a resistor connected between the RAM write enable line and ground, and I/O lines connected between the pads, respectively, and a logic circuit.

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