AT25Q32BDQ/TR

The AT25Q32B of non­volatile flash memory device supports the standard Serial Peripheral Interface (SPI). Traditional SPI single bit serial input and output (Single I/O or SIO) is supported as well as optional two bit (Dual I/O or DIO) and four bit (quad I/O or QIO) serial protocols. This multiple width interface is called SPI Multi­I/O or MIO. The SPI protocols use only 4 to 6 signals: - Chip Select (CS#) - Serial Clock (CLK) - Serial Data ­ IO0 (DI) ­ IO1 (DO) ­ IO2 (WP#) ­ IO3 (HOLD# / RESET#) The AT25Q32B support the standard Serial Peripheral Interface (SPI), Dual/Quad I/O SPI as well as 2­clocks instruction cycle Quad Peripheral Interface (QPI) as well as Double Transfer Rate (DTR): Serial Clock, Chip Select, Serial Data I/O0 (DI), I/O1 (DO), I/O2 (WP#), and I/O3 (HOLD# / RESET#). SPI clock frequencies of up to 133MHz are supported allowing equivalent clock rates of 266MHz (133MHz x 2) for Dual I/O and 532MHz (133MHz x 4) for Quad I/O when using the Fast Read Dual/Quad I/O and QPI instructions. These transfer rates can outperform standard Asynchronous 8 and 16­bit Parallel Flash memories. The Continuous Read Mode allows for efficient memory access with as few as 8­clocks of instruction­overhead to read a 24­bit address, allowing true XIP (execute in place) operation. A Hold pin, Write Protect pin and programmable write protection, with top or bottom array control, provide further control flexibility. Additionally, the device supports JEDEC standard manufacturer and device ID and SFDP Register, a 128­bit Unique Serial Number and three 1024­Byte Security Registers. The AT25Q32B provides an ideal storage solution for systems with limited space, signal connections, and power. These memories’ flexibility and performance is better than ordinary serial flash devices. They are ideal for code shadowing to RAM, executing code directly (XIP), and storing reprogrammable data.

Key features

• Power Supply Voltage Single 2.3V­3.6V supply
• 32M bit Serial Flash 32 M­bit/4M­Byte/16,384 pages 256 Bytes per programmable page Uniform 4K­Byte Sectors, 32K/64K­Byte Blocks
• Standard SPI: CLK, CS#, DI, DO, WP#, HOLD# / RESET# Dual SPI: CLK, CS#, DI, DO, WP#, HOLD# / RESET#
• Quad SPI: CLK, CS#, IO0, IO1, IO2, IO3 QPI: CLK, CS#, IO0, IO1, IO2, IO3 SPI / QPI DTR (Double Transfer Rate) Read Software & Hardware Reset
• Auto­increment Read capability
• Temperature Ranges Industrial ( -40℃ to 125℃ )
• Low power consumption 1 μA typical standby current, HFM = 0
• 15 μA typical standby current, HFM = 1
• 1 μA typical power down current
• Continuous Read with 8/16/32/64­Byte Wrap ­ As few as 8 clocks to address memory Quad Peripheral Interface (QPI) reduces instruction overhead
• Flexible Architecture with 4KB sectors
• Sector Erase (4K­Byte) Block Erase (32K/64K­Byte) Page Program up to 256 Bytes More than 100K erase/program cycles More than 20­year data retention
• Advanced Security Feature Software and Hardware Write­Protect Power Supply Lock­Down and OTP protection
• Top/Bottom, Complement array protection 128­Bit Unique ID for each device Serial Flash Discoverable Parameters (SFDP) Register 3X1024­Byte Security Registers with OTP locks Volatile & Non­volatile Status Register Bits
• High performance program/erase speed
• Page program time: 500 μs typical Sector erase time: 45 ms typical Block erase time: 250 ms typical Chip erase time: 12 s typical All Pb­free packages are RoHS compliant