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 single- address location programming, typically at 20µs 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.
The EN27C512 is a low‑power 512‑Kbit, 5 V‑only one‑time‑programmable EPROM organized as 64 K words of 8 bits. It features fast read access, two‑line control (OE & CE), and a QuikRite™ programming algorithm that typically programs a byte in about 20 s.
The device is offered in 28‑pin PDIP, 32‑pin PLCC and 28‑pin TSOP packages, operates over a commercial temperature range of –65 °C to +125 °C (industrial –40 °C to +85 °C), and includes standby modes that reduce supply current to 20 A (CMOS) or 1.0 mA (TTL).
| Programming Voltage | +12.75 V |
|---|---|
| Supply Voltage | 5 V |
| Package Types | 28‑pin PDIP, 32‑pin PLCC, 28‑pin TSOP |
| Industrial Temperature Range | -40 °C to +85 °C |
The device is programmed with a voltage of +12.75 V (±0.25 V).
It is offered in 28‑pin PDIP, 32‑pin PLCC, and 28‑pin TSOP packages.