W27C20-70中文资料华邦电子数据手册PDF规格书

GENERAL DESCRIPTION

The W27C020 is a high speed, low power Electrically Erasable and Programmable Read Only Memory organized as 262144 ´8 bits that operates on a single 5 volt power supply. The W27C020 provides an electrical chip erase function.

FEATURES

· High speed access time: 70/90/120 nS (max.)

· Read operating current: 30 mA (max.)

· Erase/Programming operating current: 30 mA (max.)

· Standby current: 1 mA (max.)

· Single 5V power supply

· +14V erase/+12V programming voltage

· Fully static operation

· All inputs and outputs directly TTL/CMOS compatible

· Three-state outputs

· Available packages: 32-pin 600 mil DIP and PLCC