Overview
The M27C4002-10F6 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 262,144 words of 16 bits, making it suitable for microprocessor systems that require large programs. The M27C4002 is offered in various packages, including FDIP40W, PDIP40, PLCC44, and TSOP40, to cater to different application needs. The UV erase type features a transparent lid for erasing the chip using ultraviolet light, while the OTP type is designed for applications where the content is programmed only once and erasure is not required.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Memory Size | 4 Mb (256K x 16) | - |
| Supply Voltage for Read Operations | 5V ± 10% | V |
| Access Time | 45ns (High Speed), 70ns (Standard) | ns |
| Active Current at 10MHz | 70mA | mA |
| Standby Current | 100µA | µA |
| Programming Voltage | 12.75V ± 0.25V | V |
| Programming Time per Word | 100µs | µs |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Types | FDIP40W, PDIP40, PLCC44, TSOP40 | - |
Key Features
- Low Power Consumption: The device features low active and standby current, making it energy-efficient.
- Two-Line Control Function: This allows for efficient use in larger memory arrays, reducing power dissipation and preventing output bus contention.
- Electronic Signature: The device supports electronic signature mode for identifying the manufacturer and device codes.
- ECOPACK® Packages: Available in lead-free packages that meet environmental requirements and comply with JEDEC Standard JESD97.
- Standby Mode: The device can be placed in a standby mode to significantly reduce supply current.
Applications
The M27C4002 is ideally suited for microprocessor systems that require large programs. It is commonly used in various applications such as:
- Embedded systems requiring non-volatile memory.
- Industrial control systems.
- Automotive electronics.
- Consumer electronics where program storage is necessary.
Q & A
- What is the memory size of the M27C4002?
The M27C4002 has a memory size of 4 Mb, organized as 262,144 words of 16 bits.
- What are the different package types available for the M27C4002?
The M27C4002 is available in FDIP40W, PDIP40, PLCC44, and TSOP40 packages.
- What is the access time for the M27C4002?
The access time is 45ns for the high-speed version and 70ns for the standard version.
- How does the standby mode work on the M27C4002?
The device enters standby mode by applying a CMOS high signal to the E input, reducing the supply current to 100µA.
- What is the programming voltage for the M27C4002?
The programming voltage is 12.75V ± 0.25V.
- How long does it take to program one word on the M27C4002?
It takes 100µs to program one word.
- What is the operating temperature range for the M27C4002?
The operating temperature range is -40°C to 85°C.
- Does the M27C4002 support electronic signature mode?
Yes, the device supports electronic signature mode for identifying the manufacturer and device codes.
- Are the packages of the M27C4002 lead-free?
Yes, the M27C4002 is available in lead-free ECOPACK® packages.
- What is the purpose of the two-line control function on the M27C4002?
The two-line control function allows for efficient use in larger memory arrays, reducing power dissipation and preventing output bus contention.
