Overview
The M27C4001-35XF1 is a 4 Mbit EPROM (Erasable Programmable Read-Only Memory) produced by STMicroelectronics. It is available in two main types: UV (ultra violet erase) and OTP (one time programmable). This device is organized as 524,288 by 8 bits, making it suitable for microprocessor systems that require large programs.
The M27C4001 is offered in various packages, including FDIP32W (window ceramic frit-seal package), PDIP32, PLCC32, and TSOP32 (8 x 20 mm). The FDIP32W package features a transparent lid for UV erasure, while the other packages are designed for applications where the content is programmed only once and erasure is not required.
STMicroelectronics also offers the M27C4001 in ECOPACK® compliant versions, which are lead-free and meet environmental requirements.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Memory Size | 4 Mbit (512Kb x 8) | |
| Supply Voltage in Read Operation | 5V ± 10% | V |
| Access Time | 35ns | ns |
| Active Current at 5MHz | 30mA | mA |
| Standby Current | 100µA | µA |
| Programming Voltage | 12.75V ± 0.25V | V |
| Programming Time per Word | 100µs | µs |
| Ambient Operating Temperature | –40 to 125 °C | °C |
| Storage Temperature | –65 to 150 °C | °C |
| Input or Output Voltage (except A9) | –2 to 7 V | V |
| A9 Voltage | –2 to 13.5 V | V |
| Program Supply Voltage | –2 to 14 V | V |
Key Features
- Low Power Consumption: Active current of 30mA at 5MHz and standby current of 100µA.
- Fast Access Time: 35ns access time for quick data retrieval.
- Programming and Erasure: Supports UV erasure and OTP programming with a programming voltage of 12.75V ± 0.25V and programming time of 100µs per word.
- Electronic Signature: Allows the reading of a binary code to identify the manufacturer and device type.
- Two-Line Output Control: Features a two-line control function to minimize memory power dissipation and prevent output bus contention.
- ECOPACK Compliant: Available in lead-free packages that meet environmental requirements.
Applications
The M27C4001 is ideally suited for microprocessor systems that require large programs. It is commonly used in:
- Embedded systems requiring significant program storage.
- Industrial control systems.
- Automotive electronics.
- Consumer electronics where non-volatile memory is necessary.
Q & A
- What is the memory size of the M27C4001?
The M27C4001 has a memory size of 4 Mbit, organized as 524,288 by 8 bits.
- What are the different types of M27C4001 available?
The M27C4001 is available in UV (ultra violet erase) and OTP (one time programmable) types.
- What is the supply voltage in read operation for the M27C4001?
The supply voltage in read operation is 5V ± 10%.
- What is the access time of the M27C4001?
The access time is 35ns.
- How much current does the M27C4001 consume in active and standby modes?
The active current is 30mA at 5MHz, and the standby current is 100µA.
- What is the programming voltage and time for the M27C4001?
The programming voltage is 12.75V ± 0.25V, and the programming time per word is 100µs.
- What is the electronic signature feature of the M27C4001?
The electronic signature feature allows the reading of a binary code to identify the manufacturer and device type.
- What are the different packages available for the M27C4001?
The M27C4001 is available in FDIP32W, PDIP32, PLCC32, and TSOP32 packages.
- Is the M27C4001 environmentally friendly?
Yes, it is available in ECOPACK compliant versions which are lead-free.
- What are common applications of the M27C4001?
It is commonly used in embedded systems, industrial control systems, automotive electronics, and consumer electronics.
