The AT45DB161D-CU is a 16 Mb high-performance Serial Peripheral Interface (SPI) NOR Flash memory from Microchip Technology. It is a low-power, high-density memory that is ideal for a wide range of applications, including embedded systems, data logging, and consumer electronics.

The AT45DB161D-CU features a fast access time of 6 ns, a maximum frequency of 66 MHz, and a dual-SPI interface for high-speed data transfers. It also supports a wide range of supply voltages from 2.7 V to 3.6 V, making it suitable for use in a variety of power-sensitive applications.

The AT45DB161D-CU is also highly reliable, with a guaranteed endurance of 100,000 write/erase cycles per sector. It also features a number of hardware protection features, such as write protection and power-down protection.

Features and Benefits

16 Mb (2 M x 8) NOR Flash memory Fast access time of 6 ns Maximum frequency of 66 MHz Dual-SPI interface for high-speed data transfers Wide range of supply voltages from 2.7 V to 3.6 V Highly reliable with a guaranteed endurance of 100,000 write/erase cycles per sector Hardware protection features such as write protection and power-down protection Applications

Embedded systems Data logging Consumer electronics Industrial automation Medical devices Automotive electronics Description

The AT45DB161D-CU is a 24-pin Ceramic Ball Grid Array (CBGA) package. It is available in commercial and industrial temperature grades.

The AT45DB161D-CU is accessed using a standard SPI interface. The SPI interface consists of four signals: Serial Clock (SCK), Serial Data Input (SDI), Serial Data Output (SDO), and Chip Select (CS).

The AT45DB161D-CU supports a variety of SPI commands, including read, write, erase, and status commands. The specific SPI commands that are supported depend on the device's operating mode.

The AT45DB161D-CU can be operated in a number of different modes, including burst mode, page mode, and dual mode. Burst mode allows for high-speed data transfers by transferring multiple bytes of data in a single SPI transaction. Page mode allows for efficient data transfers by transferring up to 256 bytes of data in a single SPI transaction. Dual mode allows for high-speed data transfers by using two SPI buses in parallel.

The AT45DB161D-CU is a powerful and versatile NOR Flash memory that is ideal for a wide range of applications. It is a low-power, high-density memory with a fast access time, a high maximum frequency, and a wide range of supported features.

How to Use the AT45DB161D-CU

The AT45DB161D-CU is used by sending SPI commands to the device. The specific SPI commands that are sent depend on the desired operation.

For example, to read data from the AT45DB161D-CU, the following SPI commands would be sent:

CS: LOW SDI: READ COMMAND SDI: ADDRESS BYTE 1 SDI: ADDRESS BYTE 2 SDI: ADDRESS BYTE 3 SCK: HIGH SDI: DUMMY BYTE SCK: HIGH SDO: DATA BYTE 1 SCK: HIGH SDO: DATA BYTE 2 ... SDO: DATA BYTE N CS: HIGH The number of data bytes that are read depends on the number of bytes that were specified in the address bytes.

To write data to the AT45DB161D-CU, the following SPI commands would be sent:

CS: LOW SDI: WRITE COMMAND SDI: ADDRESS BYTE 1 SDI: ADDRESS BYTE 2 SDI: ADDRESS BYTE 3 SCK: HIGH SDI: DATA BYTE 1 SCK: HIGH SDI: DATA BYTE 2 ... SDI: DATA BYTE N CS: HIGH The AT45DB161D-CU also supports a number of other SPI commands, such as erase commands and status commands. The specific SPI commands that are supported are described in the AT45DB161D-CU datasheet.