Overview
The M27C512-12B1 is a 512 Kbit EPROM (Erasable Programmable Read-Only Memory) produced by STMicroelectronics. This device is available in two main ranges: UV (ultra violet erase) and OTP (one time programmable). It is organized as 64K x 8 bits, making it suitable for applications requiring fast turn-around and pattern experimentation.
The M27C512-12B1 is offered in various packages, including FDIP28W (window ceramic frit-seal package), PDIP28, and PLCC32. The FDIP28W package features a transparent lid that allows the user to expose the chip to ultraviolet light for erasure. For environmentally friendly options, STMicroelectronics also offers ECOPACK® versions of the M27C512, which are lead-free and comply with JEDEC Standard JESD97.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Memory Size | 512 Kbit (64K x 8) | |
| Supply Voltage (Read Operation) | 5V ± 10% | V |
| Access Time | 45 ns | ns |
| Active Current | 30 mA | mA |
| Standby Current | 100 µA | µA |
| Programming Voltage | 12.75 V ± 0.25 V | V |
| Programming Time | Around 6 seconds | s |
| Ambient Operating Temperature | –40 to 125 °C | °C |
| Storage Temperature | –65 to 150 °C | °C |
| Lead Temperature during Soldering | Up to 300 °C for 10 seconds | °C |
Key Features
- Fast Access Time: The M27C512-12B1 has an access time of 45 ns, ensuring quick data retrieval.
- Low Power Consumption: It features low active and standby current consumption, making it energy-efficient.
- Programming Flexibility: The device can be programmed using the PRESTO IIB or PRESTO Programming Algorithm, reducing programming time significantly.
- Electronic Signature: The device includes an electronic signature feature for easy identification, with a manufacturer code (20h) and device code (3Dh).
- Environmental Compliance: Available in ECOPACK® versions, which are lead-free and comply with JEDEC Standard JESD97.
- Multiple Packages: Offered in FDIP28W, PDIP28, and PLCC32 packages to suit various application needs.
Applications
The M27C512-12B1 is ideally suited for applications where fast turn-around and pattern experimentation are crucial. These include:
- Embedded Systems: Used in various embedded systems requiring non-volatile memory for storing firmware or configuration data.
- Industrial Control Systems: Suitable for industrial control systems that need reliable and programmable memory solutions.
- Aerospace and Defense: Can be used in aerospace and defense applications due to its robustness and reliability.
- Automotive Systems: Applicable in automotive systems for storing critical data and firmware.
Q & A
- What is the memory size of the M27C512-12B1?
The M27C512-12B1 has a memory size of 512 Kbit, organized as 64K x 8 bits.
- What are the different package options available for the M27C512-12B1?
The device is available in FDIP28W, PDIP28, and PLCC32 packages.
- What is the access time of the M27C512-12B1?
The access time is 45 ns.
- How does the standby mode affect the current consumption of the M27C512-12B1?
In standby mode, the active current reduces from 30 mA to 100 µA.
- What is the programming voltage required for the M27C512-12B1?
The programming voltage is 12.75 V ± 0.25 V.
- How long does it take to program the M27C512-12B1?
The programming time is around 6 seconds.
- What is the electronic signature of the M27C512-12B1?
The electronic signature includes a manufacturer code (20h) and a device code (3Dh).
- Is the M27C512-12B1 environmentally friendly?
Yes, it is available in ECOPACK® versions, which are lead-free and comply with JEDEC Standard JESD97.
- What are the operating temperature ranges for the M27C512-12B1?
The ambient operating temperature range is –40 to 125 °C, and the storage temperature range is –65 to 150 °C.
- Can the M27C512-12B1 be used in high-reliability applications?
Yes, it is suitable for high-reliability applications such as aerospace, defense, and industrial control systems.
