Key Features & Overview:

️· Type: 4K x 8 bit EPROM. This means it can store 4096 bytes of data.
️· Voltage: Operates on a 5V supply (with some tolerances). Requires 12.75V for programming.
️· Packages: Likely available in various package types (not explicitly detailed in this excerpt).
️· Erasure: UV Erasable - meaning the data is erased by exposing the chip to ultraviolet light.

Important Electrical Characteristics:

️· Supply Current (ICC): Typical 30mA during read, much lower in standby mode (down to 100µA with CMOS logic).
️· Input Voltages: Standard TTL/CMOS logic levels are supported.
️· Output Voltages: Provides TTL and CMOS compatible output levels.
️· Programming: Requires a 12.75V program supply voltage (VPP) and a specific programming procedure.
️· Standby Current: Very low standby current makes it suitable for battery-powered applications.

Operating Modes:

️· Read: Normal operation for retrieving stored data.
️· Output Disable: Turns off the output, putting the chip in a high-impedance state.
️· Program: Writes data into the EPROM.
️· Verify: Checks if the programmed data is correct.
️· Program Inhibit: Prevents accidental programming.
️· Standby: Low-power mode.
️· Electronic Signature: Provides identification information about the chip.

Timing Characteristics:

️· The document details AC (Alternating Current) parameters for timing such as rise/fall times, input pulse durations, and access times. This is crucial for ensuring reliable operation in a circuit.

Absolute Maximum Ratings:

️· The datasheet specifies limits for operating temperature, storage temperature, voltage levels, and current. Exceeding these limits can permanently damage the chip.

Key Tables:

The document contains numerous tables that detail:

️· Capacitance
️· Read Mode DC Characteristics
️· Programming Mode DC Characteristics
️· AC Measurement Conditions
️· AC Timing Parameters
️· Absolute Maximum Ratings

In essence, this document provides all the necessary technical information for engineers and designers to use the M27C4001 EPROM in their electronic circuits.



Is there anything specific within this document you would like me to elaborate on? For instance, do you want me to:

️· Focus on the timing parameters?
️· Compare the DC characteristics in read versus program mode?
️· Explain the different operating modes in more detail?