EN27LV020

EN27LV020 / EN27LV020B EN27LV020 / EN27LV020B 2Megabit Low Voltage EPROM (256K x 8) FEATURES Read Access Time: -90ns, -120ns, -150ns, -200ns Single +3.3V Power Supply -Regulated power supply 3.0V - 3.6V (EN27LV020) -Unregulated power supply 2.7V - 3.6V (EN27LV020B for battery operated systems) Programming Voltage +12.75V QuikRiteTM Programming Algorithm Typical programming time 20µs Low Power CMOS Operation 1µA Standby (Typical) 15mA 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 32-pin PDIP 32-pin PLCC 32-pin TSOP (Type 1) Commercial and Industrial Temperature Ranges GENERAL DESCRIPTION The EN27LV020 / EN27LV020B is a low-voltage, low-power 2-Megabit, 3.3V one-timeprogrammable (OTP) read-only memory (EPROM). Organized into 256K words with 8 bits per word, it features QuikRiteTM single-address location programming, typically at 20µs per byte. Any byte can be accessed in less than 90ns. The EN27LV020 / EN27LV020B has separate Output Enable ( OE ) and Chip Enable ( CE ) controls which eliminate bus contention issues. The EN27LV020 has a Vcc tolerance range of 3.0V to 3.6 V, making it suitable for use in systems that have regulated power supplies. The EN27LV020B has a Vcc tolerance range of 2.7 V to 3.6V, making it an ideal device for battery operated systems. FIGURE 1. PDIP...