W27E257 eprom equivalent, 32k x 8 electrically erasable eprom.
* High speed access time: 100/120/150 nS (max.)
* Read operating current: 15 mA (typ.)
* Erase/Programming operating current
1 mA (typ.)
* Standby current.
The W27E257 is a high-speed, low-power Electrically Erasable and Programmable Read Only Memory organized as 32768 × 8 bits that operates on a single 5 volt power supply. The W27E257 provides an electrical chip erase function. This part was the same E.
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