Overview
The M27C4001-80N6 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 ideally suited for microprocessor systems that require large programs and is organized as 524,288 by 8 bits. The UV version allows for erasure using ultraviolet light, while the OTP version is programmed only once and does not require erasure. The M27C4001 is offered in various packages, including FDIP32W, PDIP32, PLCC32, and TSOP32, with ECOPACK® compliant versions available to meet environmental requirements.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Memory Size | 4 Mbit (512Kb x 8) | |
| Supply Voltage (Read Operation) | 5V ± 10% | V |
| Access Time | 35ns | ns |
| Active Current | 30mA at 5MHz | mA |
| Standby Current | 100µA | µA |
| Programming Voltage | 12.75V ± 0.25V | V |
| Programming Time | 100µs/Word | µs |
| Manufacturer Code | 20h | |
| Device Code | 41h | |
| Packages | FDIP32W, PDIP32, PLCC32, TSOP32 | |
| Ambient Operating Temperature | –40 to 125 °C | °C |
Key Features
- Dual Control Functions: The device features two control functions, Chip Enable (E) and Output Enable (G), which must be logically active to obtain data at the outputs.
- Low Power Consumption: The M27C4001 has a low active current of 30mA at 5MHz and a standby current of 100µA.
- Electronic Signature: The device supports an Electronic Signature mode to identify its manufacturer and type, useful for programming equipment.
- ECOPACK Compliant: Available in ECOPACK compliant packages, which are lead-free and meet environmental requirements.
- Two Line Output Control: This feature allows for efficient use in larger memory arrays, minimizing power dissipation and preventing output bus contention.
Applications
The M27C4001 is ideally suited for microprocessor systems that require large programs. It is commonly used in various applications such as:
- Embedded systems requiring significant program storage.
- Industrial control systems.
- Automotive electronics.
- Consumer electronics where programmable 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 supply voltage requirements for the M27C4001 in read operation?
The supply voltage required 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?
In active mode, it consumes 30mA at 5MHz, and in standby mode, it consumes 100µA.
- What is the programming voltage and time for the M27C4001?
The programming voltage is 12.75V ± 0.25V, and the programming time is 100µs per word.
- What are the electronic signature codes for the M27C4001?
The manufacturer code is 20h, and the device code is 41h.
- In what packages is the M27C4001 available?
The M27C4001 is available in FDIP32W, PDIP32, PLCC32, and TSOP32 packages.
- What is the ambient operating temperature range for the M27C4001?
The ambient operating temperature range is –40 to 125 °C.
- Does the M27C4001 support two-line output control?
Yes, it supports two-line output control to minimize power dissipation and prevent output bus contention.
- Is the M27C4001 available in ECOPACK compliant versions?
Yes, it is available in ECOPACK compliant versions, which are lead-free and meet environmental requirements.
