Overview
The M27C64A-10F1 is a 64Kbit EPROM (Erasable Programmable Read-Only Memory) produced by STMicroelectronics. This device is available in two main types: UV (ultra violet erase) and OTP (one time programmable). It is organized as 8,192 by 8 bits, making it suitable for microprocessor systems that require large program storage. The M27C64A is offered in various packages, including FDIP28W (window ceramic frit-seal package) and PLCC32 (32 lead Plastic Leaded Chip Carrier), with the latter being suitable for applications where the content is programmed only once and erasure is not required. The device is also available in ECOPACK® packages, which are lead-free and comply with environmental standards.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Memory Size | 64 Kbit (8K x 8) | |
| Access Time | 100 ns | |
| Supply Voltage (Read Operation) | 5V ± 10% | V |
| Supply Voltage (Programming) | 6V ± 0.25V | V |
| Programming Voltage | 12.5V ± 0.25V | V |
| Active Current | 30 mA | mA |
| Standby Current | 100 µA | µA |
| Maximum Operating Temperature | 70 °C | °C |
| Interface | Parallel |
Key Features
- High-Speed Programming: The M27C64A features a high-speed programming algorithm that allows for efficient and reliable programming, typically taking less than 1 minute per device.
- Low Power Consumption: The device has low power consumption, with an active current of 30 mA and a standby current of 100 µA.
- Electronic Signature: The M27C64A includes an Electronic Signature mode that allows the reading of a binary code to identify the manufacturer and device type, useful for programming equipment.
- Two-Line Output Control: This feature allows for efficient use in larger memory arrays, minimizing power dissipation and preventing output bus contention.
- ECOPACK® Packages: Available in lead-free ECOPACK® packages, which meet environmental standards.
Applications
The M27C64A is ideally suited for microprocessor systems that require large program storage. It is commonly used in various applications such as:
- Embedded systems requiring non-volatile memory.
- Industrial control systems.
- Automotive electronics.
- Consumer electronics where firmware needs to be stored.
Q & A
- What is the memory size of the M27C64A-10F1?
The memory size is 64 Kbit, organized as 8,192 by 8 bits.
- What are the typical access times for the M27C64A-10F1?
The access time is 100 ns.
- What are the supply voltage requirements for read and programming operations?
The supply voltage for read operation is 5V ± 10%, and for programming, it is 6V ± 0.25V.
- How does the Electronic Signature mode work?
The Electronic Signature mode allows the reading of a binary code to identify the manufacturer and device type by applying specific voltages to the address lines and VPP.
- What are the power consumption characteristics of the M27C64A-10F1?
The device has an active current of 30 mA and a standby current of 100 µA.
- What packages are available for the M27C64A-10F1?
The device is available in FDIP28W and PLCC32 packages, with ECOPACK® options for environmental compliance.
- How long does it take to program the M27C64A-10F1?
The high-speed programming algorithm typically takes less than 1 minute per device.
- What is the maximum operating temperature for the M27C64A-10F1?
The maximum operating temperature is 70 °C.
- How is the M27C64A-10F1 erased?
The UV EPROM version can be erased by exposing it to ultraviolet light, while the OTP version is programmed only once and cannot be erased.
- What are the typical applications for the M27C64A-10F1?
It is used in microprocessor systems, embedded systems, industrial control systems, automotive electronics, and consumer electronics.
