Overview
The M27C4001-10B1, produced by STMicroelectronics, is a 4 Mbit EPROM available in both UV (ultra violet erase) and OTP (one time programmable) versions. This device is ideally suited for microprocessor systems that require large programs and is organized as 524,288 by 8 bits. The M27C4001 is offered in various packages, including PDIP32, PLCC32, and TSOP32, to cater to different application needs. For UV erasable versions, the FDIP32W package features a transparent lid allowing for UV light exposure to erase the bit pattern. The device is also available 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 |
| Manufacturer Code | 20h | |
| Device Code | 41h | |
| Packages | PDIP32, PLCC32, TSOP32, FDIP32W |
Key Features
- Low power consumption with active current of 30mA at 5MHz and standby current of 100µA.
- Two control functions: Chip Enable (E) and Output Enable (G) for efficient memory management.
- Electronic signature with manufacturer code 20h and device code 41h.
- ECOPACK® compliant versions available, which are lead-free and meet environmental standards.
- Supports both UV erasable and one-time programmable (OTP) versions.
Applications
The M27C4001 is ideally suited for microprocessor systems that require large programs. It is commonly used in applications such as:
- Embedded systems requiring significant program storage.
- Industrial control systems.
- Automotive electronics.
- Consumer electronics needing non-volatile memory solutions.
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 package options available for the M27C4001?
The M27C4001 is available in PDIP32, PLCC32, TSOP32, and FDIP32W packages.
- What is the supply voltage required for read operations?
The supply voltage required for read operations is 5V ± 10%.
- What is the access time of the M27C4001?
The access time of the M27C4001 is 35ns.
- How much current does the M27C4001 consume in active and standby modes?
The M27C4001 consumes 30mA in active mode at 5MHz and 100µA in standby mode.
- 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.
- How does the electronic signature work for the M27C4001?
The electronic signature involves manufacturer code 20h and device code 41h, which can be read out by toggling address line A0.
- What are the environmental benefits of the ECOPACK® versions of the M27C4001?
The ECOPACK® versions are lead-free and comply with environmental standards, marked according to JEDEC Standard JESD97.
- Can the M27C4001 be used in both UV erasable and OTP configurations?
- How do the Chip Enable (E) and Output Enable (G) functions work?
The Chip Enable (E) is used for device selection, and the Output Enable (G) is used to gate data to the output pins, ensuring low power dissipation and preventing output bus contention.
