The PM25LV040 is a 4-Megabit, low voltage, Serial Flash memory device manufactured by PMC-Sierra. It features a SPI-compatible serial interface, enabling efficient storage in a compact form factor. This memory device is ideal for applications where space and power consumption are critical.

Applications

• Embedded systems
• Industrial control devices
• Consumer electronics
• Data logging
• Firmware storage

Features

• 4-Megabit (512K x 8) memory array
• SPI Serial Interface
• Low voltage operation (2.7V to 3.6V)
• Fast clock operation (up to 33MHz)
• Write protect pin for hardware data protection
• Low power consumption
• Small package options

Benefits

• Reduced system cost due to small package size and fewer external components
• Easy integration with microcontrollers via the SPI interface
• Extended battery life in portable applications due to low power consumption
• Enhanced data security with hardware write protection
• Fast data transfer rates for improved system performance

Technical Specifications

The PM25LV040 operates with a single power supply ranging from 2.7V to 3.6V. It supports SPI modes 0 and 3. The device features a page write buffer of 256 bytes, allowing for efficient data writing. The typical active current is around 5mA, and the standby current is less than 5uA. It is available in various package options including SOIC, VSOP, and WSON. The operating temperature range is typically -40°C to +85°C.

The PM25LV040 uses industry standard SPI protocol for read, write, and erase operations. The device also supports sector and bulk erase operations for efficient memory management. The write cycle time is typically 5ms. The device is RoHS compliant.