FEATURES

• Single Power Supply Operation

- Low voltage range: 2.3 V - 3.6 V

• Memory Organization

- Pm25LQ020: 256K x 8 (2 Mbit)

- Pm25LQ040: 512K x 8 (4 Mbit)

• Cost Effective Sector/Block Architecture

- 2Mb / 4Mb : Uniform 4KByte sectors / sixteen uniform 64KByte blocks

• Serial Peripheral Interface (SPI) Compatible

- Supports single-, dual- or quad-output

- Supports SPI Modes 0 and 3

- Maximum 33 MHz clock rate for normal read

- Maximum 104 MHz clock rate for fast read

- Maximum 208MHz clock rate equivalent Dual SPI

- Maximum 400MHz clock rate equivalent Quad SPI

• Byte Program Operation

- Typical 10 us/Byte

• Page Program (up to 256 Bytes) Operation

- Maximum 0.7ms per page program

• Sector, Block or Chip Erase Operation

- Sector Erase (4KB)150ms (Typ)

- Block Erase (64KB)500ms (Typ)

- Chip Erase 0.5s (2Mb)

- Chip Erase  1s (4Mb)

• Low Power Consumption

- Max 12 mA active read current

- Max 20 mA program/erase current

- Max 50 uA standby current

• Hardware Write Protection

- Protect and unprotect the device from write operation by Write Protect (WP#) Pin

• Software Write Protection

- The Block Protect (BP3, BP2, BP1, BP0) bits allow partial or entire memory to be configured as read-only

• High Product Endurance

- Guaranteed 100,000 program/erase cycles per single sector

- Minimum 20 years data retention

• Industrial Standard Pin-out and Package

- 8-pin 208mil SOIC

- 8-pin 150mil SOIC

- 8-pin 150mil VVSOP

- 8-contact WSON

- 8-contact USON

- PDIP

- Lead-free (Pb-free), halogen-free package

•Additional 256-byte Security information one-time programmable (OTP) area

•Special protect function

- Safe guard function (Appendix 1)

- Sector unlock function (Appendix 2)

GENERAL DESCRIPTION

The Pm25LQ020/040 is 2 Mbit / 4 Mbit Serial Peripheral Interface (SPI) Flash memories, providing single-, dual or quad-output. The devices are designed to support a 33 MHz fclock rate in normal read mode, and 104 MHz in fast read (Quad output is 100MHz), the fastest in the industry. The devices use a single low voltage power supply, ranging from 2.3 Volt to 3.6 Volt, to perform read, erase and program operations. The devices can be programmed in standard EPROM programmers.

The Pm25LQ020/040 are accessed through a 4-wire SPI Interface consisting of Serial Data Input/Output (Sl), Serial Data Output (SO), Serial Clock (SCK), and Chip Enable (CE#) pins. The devices support page program mode, where 1 to 256 bytes data can be programmed into the memory in one program operation. These devices are divided into uniform 4 KByte sectors or uniform 64 KByte blocks.

The Pm25LQ020/040 are offered in 8-pin SOIC 208mil, 8-pin PDIP, 8-pin VVSOP, 8-contact WSON and 8-contact USON.