Overview
The M27C4001-55C1 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, PDIP32, PLCC32, and TSOP32, with ECOPACK® compliant versions to meet environmental requirements.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Memory Size | 4 Mbit (512Kb x 8) | |
| Supply Voltage (Read) | 5V ± 10% | V |
| Access Time | 55ns | ns |
| Active Current | 30mA at 5MHz | mA |
| Standby Current | 100µA | µA |
| Programming Voltage | 12.75V ± 0.25V | V |
| Programming Time | 100µs/Word | µs |
| Ambient Operating Temperature | –40 to 125°C | °C |
| Storage Temperature | –65 to 150°C | °C |
| Packages | FDIP32W, PDIP32, PLCC32, TSOP32 |
Key Features
- Low power consumption with active current of 30mA at 5MHz and standby current of 100µA.
- Fast access time of 55ns.
- Two-line output control for efficient memory power dissipation and prevention of output bus contention.
- Electronic signature mode for device identification.
- ECOPACK® compliant packages for environmental sustainability.
- Programming and verify modes with specific timing characteristics.
Applications
The M27C4001-55C1 is ideally suited for microprocessor systems that require large programs. It is commonly used in various applications such as embedded systems, industrial control systems, and other devices where non-volatile memory is necessary. The OTP version is particularly useful for applications where the content is programmed only once and erasure is not required.
Q & A
- What is the memory size of the M27C4001-55C1?
The M27C4001-55C1 has a memory size of 4 Mbit, organized as 524,288 by 8 bits. - What are the different package options available for the M27C4001-55C1?
The device is available in FDIP32W, PDIP32, PLCC32, and TSOP32 packages. - What is the access time of the M27C4001-55C1?
The access time is 55ns. - How does the two-line output control function work?
The two-line output control function uses Chip Enable (E) and Output Enable (G) to manage memory power dissipation and prevent output bus contention. - What is the purpose of the Electronic Signature mode?
The Electronic Signature mode allows the reading of a binary code to identify the manufacturer and type of the device. - What are the programming voltage and time for the M27C4001-55C1?
The programming voltage is 12.75V ± 0.25V, and the programming time is 100µs per word. - What are the environmental benefits of ECOPACK® packages?
ECOPACK® packages are lead-free and comply with environmental standards, making them more sustainable. - How does the standby mode reduce power consumption?
The standby mode reduces the supply current from 30mA to 100µA by applying a CMOS high signal to the E input. - What is the recommended decoupling for the device?
A 0.1µF ceramic capacitor should be used between VCC and VSS for each device, and a 4.7µF bulk electrolytic capacitor should be used for every eight devices. - What are the absolute maximum ratings for the device?
The device has specific absolute maximum ratings for parameters such as ambient operating temperature, storage temperature, and input/output voltages.
