Overview
The M27C801-120F1 is an 8 Mbit EPROM (Erasable Programmable Read-Only Memory) offered by STMicroelectronics. It is available in two main types: UV (ultra violet erase) and OTP (one time programmable). This device is organized as 1,048,576 by 8 bits, making it suitable for applications requiring fast turn-around and pattern experimentation. The M27C801 is packaged in FDIP32W (window ceramic frit-seal), PDIP32, and PLCC32, with the FDIP32W package featuring a transparent lid for UV erasure. For environmentally friendly options, it is also available in ECOPACK® packages, which are lead-free and comply with JEDEC Standard JESD97.
Key Specifications
| Parameter | Description | Value | Unit |
|---|---|---|---|
| Capacity | 8 Mbit (1 Mb x 8) | - | - |
| Supply Voltage (Read) | 5 V ± 10% | - | V |
| Access Time | 55 ns | - | ns |
| Active Current (Read) | 35 mA at 5 MHz | - | mA |
| Standby Current | 100 µA | - | µA |
| Programming Voltage | 12.75 V ± 0.25 V | - | V |
| Programming Time | 50 µs/word | - | µs |
| Ambient Operating Temperature | –40 to 125 °C | - | °C |
| Storage Temperature | –65 to 150 °C | - | °C |
Key Features
- Supply Voltage: 5 V ± 10% in Read operation.
- Access Time: 55 ns.
- Low Power Consumption: Active current of 35 mA at 5 MHz and standby current of 100 µA.
- Programming Voltage and Time: 12.75 V ± 0.25 V with a programming time of 50 µs/word.
- Electronic Signature: Manufacturer code (20h) and device code (42h) for identification.
- Package Options: Available in FDIP32W, PDIP32, and PLCC32 packages, with ECOPACK® options for environmental compliance.
- Erasure Method: UV erasable for FDIP32W package; OTP for PDIP32 and PLCC32 packages.
Applications
The M27C801-120F1 is ideally suited for applications where fast turn-around and pattern experimentation are critical. These include:
- Embedded Systems: Where frequent updates or changes in the program are necessary.
- Development and Prototyping: For rapid testing and iteration of software or firmware.
- Industrial Control Systems: Where the ability to update or change the program without replacing the device is beneficial.
- Aerospace and Automotive: In environments where reliability and the ability to update firmware are crucial.
Q & A
- What is the capacity of the M27C801-120F1 EPROM?
The M27C801-120F1 has a capacity of 8 Mbit, organized as 1,048,576 by 8 bits.
- What are the different package options available for the M27C801-120F1?
The device is available in FDIP32W, PDIP32, and PLCC32 packages, with ECOPACK® options for environmental compliance.
- How is the M27C801-120F1 erased?
The FDIP32W package is UV erasable, while the PDIP32 and PLCC32 packages are one-time programmable (OTP).
- What is the supply voltage for the M27C801-120F1 in read operation?
The supply voltage is 5 V ± 10% in read operation.
- What is the access time of the M27C801-120F1?
The access time is 55 ns.
- How much current does the M27C801-120F1 consume in active and standby modes?
The device consumes 35 mA at 5 MHz in active mode and 100 µA in standby mode.
- What is the programming voltage and time for the M27C801-120F1?
The programming voltage is 12.75 V ± 0.25 V, and the programming time is 50 µs/word.
- How does the electronic signature feature work on the M27C801-120F1?
The electronic signature mode allows reading out a binary code to identify the manufacturer and device type. This is activated by applying 11.5V to 12.5V on address line A9 and toggling address line A0.
- What are the operating temperature ranges for the M27C801-120F1?
The ambient operating temperature range is –40 to 125 °C, and the storage temperature range is –65 to 150 °C.
- What are some typical applications for the M27C801-120F1?
Typical applications include embedded systems, development and prototyping, industrial control systems, and aerospace and automotive environments.
