Overview
The M27C801-100F1 is an 8 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 organized as 1,048,576 by 8 bits, making it suitable for applications requiring fast turn-around and pattern experimentation. The M27C801 is offered in various packages, including FDIP32W, PDIP32, and PLCC32, with the FDIP32W package featuring a transparent lid for UV erasure. For environmental compliance, the device is also available in ECOPACK® packages, which are lead-free and meet JEDEC standards.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Memory Size | 8 Mbit | |
| Organization | 1,048,576 x 8 | |
| Interface Type | Parallel | |
| Operating Supply Voltage | 5 V ± 10% | V |
| Access Time | 55 ns | ns |
| Active Current | 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
- Fast access time of 55 ns, enabling quick data retrieval.
- Low power consumption with an active current of 35 mA at 5 MHz and a standby current of 100 µA.
- Programming voltage of 12.75 V ± 0.25 V and programming time of 50 µs per word.
- Electronic signature mode for device identification, with manufacturer code (20h) and device code (42h).
- Available in UV and OTP versions, with UV version featuring a transparent lid for erasure.
- ECOPACK® packages available, which are lead-free and compliant with JEDEC standards.
- Two-line output control with Chip Enable (E) and Output Enable (G) for flexible data management.
Applications
The M27C801 is ideally suited for applications where fast turn-around and pattern experimentation are crucial. These include:
- Embedded systems requiring frequent updates or testing of firmware.
- Development and prototyping environments where rapid changes to the code are necessary.
- Industrial control systems that need reliable and fast memory solutions.
- Aerospace and automotive applications where the device's robust specifications and environmental compliance are essential.
Q & A
- What is the memory size and organization of the M27C801?
The M27C801 has a memory size of 8 Mbit, organized as 1,048,576 by 8 bits.
- What are the different package types available for the M27C801?
The M27C801 is available in FDIP32W, PDIP32, and PLCC32 packages.
- What is the operating supply voltage for the M27C801?
The operating supply voltage is 5 V ± 10%.
- What is the access time of the M27C801?
The access time is 55 ns.
- How does the standby mode affect the current consumption of the M27C801?
In standby mode, the supply current reduces from 35 mA to 100 µA.
- What is the programming voltage and time for the M27C801?
The programming voltage is 12.75 V ± 0.25 V, and the programming time is 50 µs per word.
- How does the electronic signature mode work on the M27C801?
The electronic signature mode allows reading of a binary code to identify the manufacturer and device type by forcing 11.5V to 12.5V on address line A9 and toggling address line A0.
- What are the environmental specifications for the M27C801?
The device operates within an ambient temperature range of –40 to 125 °C and can be stored at temperatures from –65 to 150 °C.
- Are the M27C801 packages lead-free?
- How does the two-line output control work on the M27C801?
The two-line output control uses Chip Enable (E) for device selection and Output Enable (G) to gate data to the output pins independently of device selection.
