M27V512 - 512 Kbit Low Voltage EPROM

Overview

The M27V512 is a low-voltage 512 Kbit (64K x 8) EPROM designed for applications requiring non-volatile memory storage. It operates at a reduced voltage, making it suitable for power-sensitive designs while maintaining high performance and reliability. The device is organized as 65,536 words of 8 bits each, providing flexible storage for firmware, boot code, or configuration data in embedded systems.

This EPROM features a standard two-line control interface, offering easy integration into existing systems. The M27V512 is manufactured using advanced CMOS technology, ensuring low power consumption while delivering fast access times. Its non-volatile nature makes it ideal for applications where data retention is critical, even when power is removed.

Features

• Memory Capacity: 512 Kbit (64K x 8) organization
• Low Voltage Operation: Designed for reduced power consumption
• Fast Access Time: High-speed read operations for improved system performance
• Standard Interface: Two-line control for easy system integration
• CMOS Technology: Low power consumption and high reliability
• Non-Volatile Storage: Data retention without power
• UV Erasable: Can be erased and reprogrammed for development and updates
• Wide Temperature Range: Suitable for industrial applications
• Compatibility: Pin-compatible with other standard EPROMs

Applications

The M27V512 is versatile and finds use in numerous applications across various industries:

• Embedded Systems: Firmware storage for microcontrollers and processors
• Industrial Control: Program storage for PLCs and automation equipment
• Automotive Electronics: Engine control units and dashboard systems
• Medical Devices: Critical parameter storage in diagnostic equipment
• Consumer Electronics: BIOS storage in computers and gaming systems
• Telecommunications: Firmware in networking equipment
• Legacy System Support: Replacement for older EPROM designs

Electrical Characteristics

Absolute Maximum Ratings

• Supply Voltage: -0.6V to +7.0V
• Input Voltage: -0.6V to V_CC + 0.6V
• Output Voltage: -0.6V to V_CC + 0.6V
• Storage Temperature: -65°C to +150°C
• Operating Temperature: -40°C to +85°C (industrial grade)

DC Characteristics

• Supply Current (Active): 30 mA max @ 5 MHz
• Supply Current (Standby): 100 µA max
• Input Leakage Current: ±1 µA max
• Output Leakage Current: ±1 µA max
• Input Low Voltage: 0.8V max
• Input High Voltage: 2.0V min

AC Characteristics

• Address Access Time: 150 ns max
• Chip Enable Access Time: 150 ns max
• Output Enable Access Time: 50 ns max
• Read Cycle Time: 150 ns
• Write Pulse Width: 100 ns min

Package Information

The M27V512 is available in several industry-standard packages:

32-Pin Plastic Dual In-line Package (PDIP)

• Package Code: M27V512-P
• Dimensions: 15.24mm x 6.35mm x 4.57mm
• Pin Pitch: 2.54mm
• Operating Temperature: -40°C to +85°C

32-Pin Plastic Leaded Chip Carrier (PLCC)

• Package Code: M27V512-L
• Dimensions: 13.97mm x 13.97mm
• Lead Pitch: 1.27mm
• Operating Temperature: -40°C to +85°C

32-Pin Thin Small Outline Package (TSOP)

• Package Code: M27V512-T
• Dimensions: 20mm x 8mm x 1.2mm
• Pin Pitch: 0.8mm
• Operating Temperature: -40°C to +85°C

Programming and Erasure

The M27V512 supports standard EPROM programming procedures:

• Programming Voltage: 12.5V ± 0.5V
• Programming Algorithm: Intelligent programming with verification
• Programming Time: Typically 100 µs per byte
• Erasure Method: UV light through quartz window (253.7 nm)
• Erasure Time: 15-20 minutes at 12,000 µW/cm² intensity

Quality and Reliability

The M27V512 meets stringent quality standards:

• Endurance: Minimum 100 programming cycles
• Data Retention: 10 years minimum at 55°C
• ESD Protection: > 2000V on all pins (Human Body Model)
• Latch-up Protection: > 100 mA per JEDEC Standard 17

Ordering Information

The device is available in different speed grades and packages:

• M27V512-15P: 150 ns access time, PDIP package
• M27V512-15L: 150 ns access time, PLCC package
• M27V512-12P: 120 ns access time, PDIP package
• M27V512-12T: 120 ns access time, TSOP package