25AA160T-I/SN

Memory IC Overview

The Microchip Technology 25AA160T-I/SN is a 16 Kbit (2048 x 8-bit) Serial Electrically Erasable PROM. It features an SPI-compatible serial bus interface with SCK, SI, SO, CS, HOLD, and WP pins. The device operates within a supply voltage range of 1.8V to 5.5V and supports industrial temperature ranges from -40°C to +85°C. It utilizes low-power CMOS technology with typical standby current of 500 nA and read current of 500 µA. The memory organization allows for sequential reads and page writes of up to 16 bytes. The 'T' suffix indicates tape and reel packaging, while 'SN' denotes the 8-lead SOIC package.

Memory IC Feature Summary

• Supports self-timed erase and write cycles with internal write cycle time of 5 ms maximum.
• Includes built-in write protection mechanisms such as power on/off data protection, write enable latch, and block write protection.
• Features a Hold pin to suspend transmission during serial sequences without resetting the sequence.
• Provides high reliability with endurance of 1 million E/W cycles and data retention exceeding 200 years.

Memory IC Applications

• Data storage in microcontroller systems via SPI port
• Configuration parameter storage
• Calibration data retention

Memory IC Procurement Notes

Verify that the ordering suffix 'T' corresponds to tape and reel packaging and 'SN' indicates the 8-lead SOIC package. Confirm the 'I' suffix matches the required industrial temperature range of -40°C to +85°C. Ensure the specific voltage variant aligns with system requirements, as this part belongs to the 1.8V family. Cross-reference the datasheet revision and any errata sheets for operational nuances.

Memory IC Selection Notes

Select this component when a 16 Kbit non-volatile memory solution with SPI interface is required for industrial environments. It is suitable for applications needing low standby power and hardware write protection. Note that this specific device generation is not recommended for new designs; consider newer alternatives like the 25AA160A/B series if available for long-term projects.

Memory IC Part Context

This component is part of the 25XX160 family, which includes the 25AA160, 25LC160, and 25C160 variants. These devices share similar functional characteristics but differ in operating voltage ranges and maximum clock frequencies. The 25AA160 specifically supports lower voltage operation starting at 1.8V compared to other family members.

Memory IC Replacement Considerations

Microchip recommends using the 25AA160A or 25LC160A/B series instead of this device for new designs. Verify compatibility with existing PCB footprints and software drivers when considering these updated family members.