M27V160 16 Mbit EPROM Technical Summary

Overview

The M27V160 is a low-voltage 16 Mbit (2 MB) EPROM (Erasable Programmable Read-Only Memory) available in two variants: UV (Ultra-Violet Erasable) and OTP (One-Time Programmable). This component is designed for applications requiring non-volatile memory storage with high reliability and endurance. The M27V160 is built using advanced CMOS technology, ensuring low power consumption while maintaining high performance.

The device is organized as 2,097,152 x 8 bits, making it suitable for a wide range of embedded systems and microcontroller-based applications. Its compatibility with standard EPROM programming interfaces ensures ease of integration into existing designs.

Features

• Memory Capacity: 16 Mbit (2 MB), organized as 2,097,152 x 8 bits.
• Voltage Range: Low-voltage operation, compatible with 3.3V or 5V systems (depending on variant).
• Variants: Available in UV-erasable and OTP (One-Time Programmable) versions.
• High-Speed Access Time: Fast read access times, typically ranging from 55ns to 150ns.
• Low Power Consumption: CMOS technology ensures efficient power usage in both active and standby modes.
• Wide Temperature Range: Operates reliably across industrial temperature ranges (-40°C to +85°C).
• Standard Pinout: Compatible with industry-standard EPROM pin configurations for easy replacement.
• Programming Voltage: Supports standard 12V programming voltage for ease of use.
• Data Retention: Guaranteed data retention for up to 10 years.

Applications

The M27V160 is ideal for a variety of applications requiring non-volatile memory storage, including:

• Embedded Systems: Firmware storage for microcontrollers and DSPs.
• Industrial Control: Program storage for PLCs and automation equipment.
• Telecommunications: Code storage in networking devices and routers.
• Consumer Electronics: Firmware in set-top boxes, gaming consoles, and other devices.
• Automotive: Engine control units (ECUs) and infotainment systems.
• Medical Devices: Reliable storage for critical firmware in medical equipment.

Electrical Characteristics

Absolute Maximum Ratings

• Supply Voltage (V_CC): -0.5V to +7.0V
• Programming Voltage (V_PP): -0.5V to +13.5V
• Input Voltage (V_IN): -0.5V to V_CC + 0.5V
• Operating Temperature Range: -40°C to +85°C
• Storage Temperature Range: -65°C to +150°C

DC Characteristics

• Supply Current (Active): 30 mA max (at 5V, 55ns access time)
• Supply Current (Standby): 100 µA max
• Input Leakage Current: ±1 µA max
• Output Leakage Current: ±1 µA max

AC Characteristics

• Read Access Time: 55ns, 70ns, 90ns, 120ns, 150ns (depending on speed grade)
• Output Enable to Output Valid: 30ns max
• Chip Enable to Output Valid: 55ns max
• Programming Time: 100 µs per byte (typical)

Package Information

The M27V160 is available in multiple package options to suit different application requirements:

• 32-Pin Plastic DIP (Dual In-Line Package): Suitable for through-hole mounting in prototyping and industrial applications.
• 32-Pin PLCC (Plastic Leaded Chip Carrier): Compact surface-mount package for space-constrained designs.
• 32-Pin TSOP (Thin Small Outline Package): Ultra-thin profile for high-density PCB layouts.

Pin Configuration

The M27V160 follows a standard 32-pin EPROM pinout:

• Pins A0-A20: Address inputs for memory location selection.
• Pins O0-O7: Data outputs (tri-state during programming).
• CE (Chip Enable): Active-low control for device selection.
• OE (Output Enable): Active-low control for output buffer activation.
• PGM (Program): Programming control input (active-low).
• V_PP: Programming voltage supply (typically 12V).
• V_CC: Main power supply (3.3V or 5V).
• GND: Ground reference.

Additional Information

Programming Considerations

The M27V160 requires a standard EPROM programmer for writing data. Key programming parameters include:

• Programming voltage (V_PP) must be maintained at 12V ±5% during programming.
• Each byte requires approximately 100 µs programming time.
• Verify operations should be performed after programming to ensure data integrity.

UV Erasure (UV Variant Only)

For the UV-erasable version:

• Exposure to UV light (wavelength 2537 Å) for 15-20 minutes is required for complete erasure.
• The quartz window must be covered after programming to prevent accidental erasure from ambient light.
• Recommended UV intensity: 12,000 µW/cm² at 1 inch distance.

Quality and Reliability

The M27V160 meets stringent quality standards:

• Endurance: Minimum 100 programming cycles (UV variant).
• Data retention: 10 years minimum at 55°C.
• ESD protection: All pins protected to >2000V (Human Body Model).