EN27C512

www.DataSheet4U.com EN27C512 EN27C512 512KBIT EPROM (64K x 8) FEATURES Fast Read Access Time : -45, -55, -70, and -90ns Single 5V Power Supply Programming Voltage +12.75V QuikRiteTM Programming Algorithm Typical programming time 20µs Low Power CMOS Operation 1µA Standby (Typical) 30mA Operation (Max.) CMOS- and TTL-Compatible I/O High-Reliability CMOS Technology Latch-Up Immunity to 100mA from -1V to VCC + 1V Two-Line Control ( OE & CE ) Standard Product Identification Code JEDEC Standard Pinout 28-pin PDIP 32-pin PLCC 28-pin TSOP (Type 1) Commercial and Industrial Temperature Ranges GENERAL DESCRIPTION The EN27C512 is a low-power 512Kbit, 5V-only one-time-programmable (OTP) read-only memory (EPROM). Organized into 64K words with 8 bits per word, it features QuikRiteTM singleaddress location programming, typically at 20 µs per byte. Any byte can be accessed in less than 45ns, eliminating the need for WAIT states in high-performance microprocessor systems. The EN27C512 has separate Output Enable ( OE ) and Chip Enable ( CE ) controls which eliminate bus contention issues. FIGURE 1. PDIP Pin Name A0-A15 DQ0-DQ7 Function Addresses Outputs Chip Enable Output Enable No Connect CE OE NC 4800 Great America Parkway Ste 202 Santa Clara, CA. 95054 1 Tel: 408-235-8680 Fax: 408-235-8685 EN27C512 FIGURE 2. TSOP FIGURE 3. PLCC 4800 Great America Parkway Ste 202 Santa Clara, CA. 95054 2 Tel: 408-235-8680 Fax: 408-235-8685 EN27C512 FIGURE 4. ...