Overview
The M27C4001-15C1 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.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Memory Capacity | 4 Mbit (512Kb x 8) | |
| Supply Voltage (Read Operation) | 5V ± 10% | |
| Access Time | 35ns | |
| Active Current | 30mA at 5MHz | |
| Standby Current | 100µA | |
| Programming Voltage | 12.75V ± 0.25V | |
| Programming Time | 100µs/Word | |
| Electronic Signature | Manufacturer Code: 20h, Device Code: 41h | |
| Packages | FDIP32W, PLCC32, TSOP32 (8 x 20 mm), PDIP32 |
Key Features
- Low Power Consumption: Active current of 30mA at 5MHz and standby current of 100µA.
- 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 ECOPACK packages to meet environmental requirements.
- Electronic Signature: Provides manufacturer and device codes for identification.
- Standby Mode: Reduces supply current significantly when in standby mode.
Applications
The M27C4001-15C1 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 where non-volatile memory is necessary.
Q & A
- What is the memory capacity of the M27C4001-15C1?
The M27C4001-15C1 has a memory capacity of 4 Mbit, organized as 524,288 by 8 bits.
- What are the supply voltage requirements for read operations?
The supply voltage for read operations is 5V ± 10%.
- What is the access time of the M27C4001-15C1?
The access time is 35ns.
- What are the current consumption levels in active and standby modes?
In active mode, the current consumption is 30mA at 5MHz, and in standby mode, it is 100µA.
- How is the M27C4001-15C1 programmed?
The device is programmed with a voltage of 12.75V ± 0.25V and a programming time of 100µs per word.
- What packages are available for the M27C4001-15C1?
The device is available in FDIP32W, PLCC32, TSOP32 (8 x 20 mm), and PDIP32 packages.
- How does the two-line output control function work?
The two-line control function uses Chip Enable (E) and Output Enable (G) to minimize power dissipation and prevent output bus contention.
- What is the purpose of the electronic signature feature?
The electronic signature feature provides a manufacturer code (20h) and a device code (41h) for identification.
- How is the standby mode activated?
The standby mode is activated by applying a CMOS high signal to the Chip Enable (E) input.
- Are the M27C4001-15C1 packages environmentally friendly?
Yes, the M27C4001-15C1 is available in lead-free ECOPACK packages to meet environmental requirements.
