Overview
The M27C512-45C1 is a 512 Kbit 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 organized as 65,536 by 8 bits, making it suitable for applications requiring fast turn-around and pattern experimentation.
The M27C512-45C1 is offered in various packages, including FDIP28W, PDIP28, and PLCC32, with ECOPACK® versions available to meet environmental requirements. The FDIP28W package features a transparent lid, allowing for UV erasure of the chip.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Capacity | 512 Kbit (64K x 8) | - |
| Supply Voltage (Read Operation) | 5V ± 10% | V |
| Access Time | 45 ns | ns |
| Active Current | 30 mA | mA |
| Standby Current (CMOS) | 100 µA | µA |
| Programming Voltage | 12.75 V ± 0.25 V | V |
| Programming Time | Around 6 seconds (PRESTO IIB Algorithm) | s |
| Manufacturer Code | 20h | - |
| Device Code | 3Dh | - |
| Packages | FDIP28W, PDIP28, PLCC32 | - |
Key Features
- Fast access time of 45 ns
- Low power consumption: 30 mA active, 100 µA standby
- Programming voltage of 12.75 V ± 0.25 V with programming time around 6 seconds using PRESTO IIB Algorithm
- Electronic Signature with manufacturer code 20h and device code 3Dh
- Available in UV (ultra violet erase) and OTP (one time programmable) versions
- ECOPACK® versions for environmental compliance
- Transparent lid in FDIP28W package for UV erasure
Applications
The M27C512-45C1 is ideally suited for applications where fast turn-around and pattern experimentation are crucial. These include:
- Development and prototyping of electronic systems requiring frequent code changes
- Embedded systems where code updates are necessary but erasure is not frequently required
- Industrial control systems needing reliable and fast memory solutions
- Aerospace and automotive applications where robust and reliable memory is essential
Q & A
- What is the capacity of the M27C512-45C1?
The M27C512-45C1 has a capacity of 512 Kbit, organized as 65,536 by 8 bits.
- What are the different package options available for the M27C512-45C1?
The device is available in FDIP28W, PDIP28, and PLCC32 packages.
- What is the access time of the M27C512-45C1?
The access time is 45 ns.
- How much power does the M27C512-45C1 consume in active and standby modes?
The device consumes 30 mA in active mode and 100 µA in standby mode.
- What is the programming voltage and time for the M27C512-45C1?
The programming voltage is 12.75 V ± 0.25 V, and the programming time is around 6 seconds using the PRESTO IIB Algorithm.
- How does the UV erasure process work for the M27C512-45C1 in the FDIP28W package?
The FDIP28W package has a transparent lid, allowing the user to expose the chip to ultraviolet light to erase the bit pattern.
- What are the electronic signature codes for the M27C512-45C1?
The manufacturer code is 20h, and the device code is 3Dh.
- Is the M27C512-45C1 available in lead-free packages?
- What are some typical applications for the M27C512-45C1?
Typical applications include development and prototyping, embedded systems, industrial control systems, and aerospace and automotive applications.
- How do I determine the correct part number for the M27C512-45C1 based on speed and package?
The part number can be determined using the ordering information scheme, which includes device type, supply voltage, device function, speed, and package type.
