Description

The Microchip Technology Inc. 25AA160/25LC160/25C160 (25XX160*) are 16 Kbit Serial Electrically Erasable PROMs. The memory is accessed via a simple Serial Peripheral Interface™ (SPI™) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a Chip Select (CS) input. Communication to the device can be paused via the hold pin (HOLD). While the device is paused, transitions on its inputs will be ignored, with the exception of chip select, allowing the host to service higher priority interrupts.

Specifications and features

• Low-power CMOS technology:
- Write current: 3 mA maximum
- Read current: 500 µA typical
- Standby current: 500 nA typical
• 2048 x 8-bit organization
• 16 byte page
• Write cycle time: 5 ms max.
• Self-timed erase and write cycles
• Block write protection:
- Protect none, 1/4, 1/2, or all of the array
• Built-in write protection:
- Power on/off data protection circuitry
- Write enable latch
- Write-protect pin
• Sequential read
• High reliability:
- Endurance: 1 M cycles
- Data retention: > 200 years
- ESD protection: > 4000V
• 8-pin PDIP and SOIC packages
• Temperature ranges supported:
- Industrial (I): -40°C to +85°C
- Automotive (E) (25C160): -40°C to +125°C

Application Scenarios

This model is widely used in various industries that require data storage on electronic devices. It can be applied in automotive systems, industrial equipment, consumer electronics, and many other applications.

Comparison

- Low-power CMOS technology
- High reliability with endurance up to 1 million cycles and data retention for more than 200 years
- Built-in write protection for data security
- Wide temperature range support for different environments

- Requires a complex Serial Peripheral Interface (SPI) compatible serial bus for memory access
- Limited storage capacity of 16 Kbit