W27E520

W27E520 64K × 8 ELECTRICALLY ERASABLE EPROM GENERAL DESCRIPTION The W27E520 is a high speed, low power Electrically Erasable and Programmable Read Only Memory organized as 65,536 × 8 bits. It includes latches for the lower 8 address lines to multiplex with the 8 data lines. To cooperate with the MCU, this device could save the external TTL component, also cost and space. It requires only one supply in the range of 4.5V to 5.5V in normal read mode. The W27E520 provides an electrical chip erase function. It will be a great convenient when you need to change/update the contents in the device. FEATURES High speed access time: 70/90 nS (max.) Read operating current: 20 mA (max.) Erase/Programming operating current 30 mA (max.) Standby current: 100 µA (max.) Unregulated battery power supply range, 4.5V to 5.5V +13V erase and programming voltage PIN CONFIGURATIONS High Reliability CMOS Technology − 2K V ESD Protection − 200 mA Latchup Immunity Fully s...