Overview
The M27C1001-12C1 is a 1 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 ideally suited for microprocessor systems that require large programs and is organized as 131,072 words of 8 bits. The M27C1001 is offered in various packages, including FDIP32W, PDIP32, PLCC32, and TSOP32, to cater to different application needs. The UV EPROM version features a transparent lid that allows for erasure using ultraviolet light, while the OTP version is programmed only once and does not require erasure.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Capacity | 1 Mbit (128 Kbit x 8) | |
| Supply Voltage in Read Operation | 5V ± 10% | V |
| Access Time | 35ns | ns |
| Active Current at 5 MHz | 30 mA | mA |
| Standby Current | 100 µA | µA |
| Programming Voltage | 12.75V ± 0.25V | V |
| Programming Time per Word | 100 µs | µs |
| Ambient Operating Temperature | –40 to 125 °C | °C |
| Storage Temperature | –65 to 150 °C | °C |
Key Features
- Low Power Consumption: Active current of 30 mA at 5 MHz and standby current of 100 µA.
- Electronic Signature: Manufacturer code (20h) and device code (05h) for easy identification.
- Programming and Erasure: UV EPROM version can be erased using ultraviolet light, while OTP version is one-time programmable.
- Package Options: Available in FDIP32W, PDIP32, PLCC32, and TSOP32 packages.
- ECOPACK® Packages: Lead-free packages available to meet environmental requirements.
- Control Functions: Chip Enable (E) and Output Enable (G) for device selection and data gating.
Applications
The M27C1001 is ideally suited for microprocessor systems that require large programs. It is commonly used in various applications such as:
- Embedded systems requiring significant program storage.
- Industrial control systems.
- Automotive electronics.
- Consumer electronics where program storage is critical.
Q & A
- What is the capacity of the M27C1001 EPROM?
The M27C1001 has a capacity of 1 Mbit, organized as 131,072 words of 8 bits.
- What are the different package options available for the M27C1001?
The M27C1001 is available in FDIP32W, PDIP32, PLCC32, and TSOP32 packages.
- How is the UV EPROM version of the M27C1001 erased?
The UV EPROM version is erased using ultraviolet light with a wavelength of 2537 Å.
- What is the programming voltage for the M27C1001?
The programming voltage is 12.75V ± 0.25V.
- What is the access time of the M27C1001?
The access time is 35ns.
- How does the Electronic Signature feature work?
The Electronic Signature mode allows reading of a binary code to identify the manufacturer and device type by applying specific voltages to address line A9 and toggling address line A0.
- What are the standby and active current consumption values?
The standby current is 100 µA, and the active current at 5 MHz is 30 mA.
- Is the M27C1001 lead-free?
Yes, the M27C1001 is available in ECOPACK® packages which are lead-free.
- What are the control functions for data access in the M27C1001?
The control functions are Chip Enable (E) and Output Enable (G).
- What is the recommended erasure procedure for the UV EPROM version?
The recommended erasure procedure involves exposing the device to short wave ultraviolet light with an integrated dose of at least 15 W-sec/cm2 for approximately 15 to 20 minutes.
