Overview
The M27C1001-70C1 is a 1 Mbit EPROM (Erasable Programmable Read-Only Memory) produced by STMicroelectronics. This device is available in two main types: UV (ultra violet erase) and OTP (one time programmable). It is designed for microprocessor systems that require large program storage and is organized as 131,072 words of 8 bits. The M27C1001-70C1 is suitable for applications where high storage capacity and reliable data retention are essential.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Memory Size | 1 Mbit (128Kb x 8) | 131,072 words of 8 bits |
| Supply Voltage | Read Operation | 5V ± 10% |
| Access Time | Read Mode | 70ns (for -70 speed grade) |
| Active Current | At 5MHz | 30mA |
| Standby Current | TTL and CMOS | 100µA |
| Programming Voltage | VPP | 12.75V ± 0.25V |
| Programming Time | Per word | 100µs |
| Operating Temperature | 0°C to 70°C | |
| Package Types | FDIP32W, PDIP32, PLCC32, TSOP32 (8 x 20 mm), LCCC32W |
Key Features
- High Storage Capacity: 1 Mbit of storage, organized as 131,072 words of 8 bits.
- UV and OTP Options: Available in UV (ultra violet erase) and OTP (one time programmable) versions.
- Low Power Consumption: Active current of 30mA at 5MHz and standby current of 100µA.
- Fast Access Time: Access time as low as 70ns for the -70 speed grade.
- Electronic Signature: Allows for the reading of a binary code to identify the manufacturer and device type.
- Multiple Package Options: Available in FDIP32W, PDIP32, PLCC32, TSOP32 (8 x 20 mm), and LCCC32W packages.
- ECOPACK® Compliance: Lead-free packages available, compliant with JEDEC Standard JESD97.
Applications
The M27C1001-70C1 is ideally suited for microprocessor systems that require large program storage. It is commonly used in:
- Embedded systems requiring significant program memory.
- Industrial control systems where reliable data storage is crucial.
- Automotive and aerospace applications due to its robustness and reliability.
- Legacy systems where compatibility with older microprocessors is necessary.
Q & A
- What is the memory size of the M27C1001-70C1?
The M27C1001-70C1 has a memory size of 1 Mbit, organized as 131,072 words of 8 bits.
- What are the different package types available for the M27C1001-70C1?
The device is available in FDIP32W, PDIP32, PLCC32, TSOP32 (8 x 20 mm), and LCCC32W packages.
- What is the access time for the M27C1001-70C1?
The access time for the -70 speed grade is 70ns.
- How does the UV erasure process work for the M27C1001-70C1?
The UV erasure process involves exposing the device to ultraviolet light with a wavelength of 2537 Å. The recommended dosage is a minimum of 15 W-sec/cm², which typically takes 15 to 20 minutes using an ultraviolet lamp with a 12000 µW/cm² power rating.
- What is the purpose of the Electronic Signature mode in the M27C1001-70C1?
The Electronic Signature mode allows for the reading of a binary code to identify the manufacturer and device type, which is useful for programming equipment to match the device with its corresponding programming algorithm.
- What are the power consumption characteristics of the M27C1001-70C1?
The device has an active current of 30mA at 5MHz and a standby current of 100µA.
- Is the M27C1001-70C1 lead-free?
Yes, the M27C1001-70C1 is available in ECOPACK® packages, which are lead-free and compliant with JEDEC Standard JESD97.
- What is the operating temperature range for the M27C1001-70C1?
The operating temperature range is 0°C to 70°C.
- Can the M27C1001-70C1 be programmed in parallel with other devices?
Yes, the M27C1001-70C1 can be programmed in parallel with other devices, but each device must have its own programming voltage and control signals.
- Is the M27C1001-70C1 still in production?
No, the M27C1001-70C1 is now an obsolete product.
