M27V801 8 Mbit EPROM Technical Summary

Overview

The M27V801 is a low-voltage 8 Mbit (1 Megabyte) EPROM (Erasable Programmable Read-Only Memory) available in two variants: UV (Ultra Violet erase) and OTP (One Time Programmable). This component is designed for applications requiring non-volatile memory storage with high reliability and ease of integration. The M27V801 is well-suited for embedded systems, industrial controls, and legacy hardware upgrades due to its robust architecture and compatibility with low-voltage systems.

Features

• Memory Capacity: 8 Mbit (1M x 8-bit organization)
• Voltage Range: Low-voltage operation, compatible with 3.3V and 5V systems
• Variants: Available in UV-erasable and OTP (One Time Programmable) versions
• Access Time: Fast read access times, suitable for high-performance applications
• Programming Voltage: Standard 12V programming voltage for ease of use
• Temperature Range: Industrial-grade temperature range (-40°C to +85°C)
• Packaging: Available in multiple package options including PDIP, PLCC, and TSOP
• Compatibility: Pin-compatible with other industry-standard EPROMs for easy replacement
• Reliability: High endurance and data retention (typically 10 years or more)

Applications

The M27V801 is widely used in applications requiring reliable non-volatile memory storage. Key application areas include:

• Embedded Systems: Firmware storage for microcontrollers and DSPs
• Industrial Controls: Program storage for PLCs and automation equipment
• Telecommunications: Code storage in networking devices and legacy telecom hardware
• Automotive Electronics: Non-volatile memory for engine control units (ECUs) and infotainment systems
• Medical Devices: Firmware storage in diagnostic and monitoring equipment
• Consumer Electronics: Legacy devices requiring EPROM-based storage

Electrical Characteristics

Absolute Maximum Ratings

• Supply Voltage (V_CC): -0.6V to +7.0V
• Programming Voltage (V_PP): -0.6V to +13.5V
• Input Voltage (V_IN): -0.6V to V_CC + 0.6V
• Operating Temperature Range: -40°C to +85°C
• Storage Temperature Range: -65°C to +150°C

DC Characteristics

• Supply Current (Read Mode): 30 mA max (at 5V, 25°C)
• Supply Current (Standby Mode): 100 µA max (at 5V, 25°C)
• Input Leakage Current: ±1 µA max
• Output Leakage Current: ±1 µA max
• Output High Voltage (V_OH): 2.4V min (at I_OH = -2.0 mA)
• Output Low Voltage (V_OL): 0.4V max (at I_OL = 2.0 mA)

AC Characteristics

• Address Access Time (t_ACC): 70 ns max
• Chip Enable Access Time (t_CE): 70 ns max
• Output Enable Access Time (t_OE): 30 ns max
• Read Cycle Time (t_RC): 70 ns min
• Write Pulse Width (t_WP): 50 ns min

Package Information

The M27V801 is available in multiple industry-standard packages to accommodate various design requirements. Below are the key package details:

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

• Package Code: PDIP32
• Dimensions: 15.24mm x 6.35mm (body)
• Pin Pitch: 2.54mm
• Lead Material: Copper alloy
• RoHS Compliance: Yes

32-Pin Plastic Leaded Chip Carrier (PLCC)

• Package Code: PLCC32
• Dimensions: 13.97mm x 13.97mm (body)
• Pin Pitch: 1.27mm
• Lead Material: Copper alloy
• RoHS Compliance: Yes

32-Pin Thin Small Outline Package (TSOP)

• Package Code: TSOP32
• Dimensions: 20mm x 8mm (body)
• Pin Pitch: 0.8mm
• Lead Material: Copper alloy
• RoHS Compliance: Yes

Conclusion

The M27V801 8 Mbit EPROM is a versatile and reliable non-volatile memory solution suitable for a wide range of applications. Its low-voltage operation, fast access times, and multiple package options make it an excellent choice for both new designs and legacy system upgrades. Whether used in industrial controls, automotive systems, or consumer electronics, the M27V801 delivers consistent performance and long-term data retention.