This post explains for the Flash Memory.
The Part Number is EN25Q80A, 25Q80A.
The function of this semiconductor is 8 Megabit Serial Flash Memory.
The package is SOP, DIP 8 Pin Type
Manufacturer: EON
Preview images :
Description
The 25Q80A is 8 Megabit Serial Flash Memory with 4Kbyte Uniform Sector. The EN25Q80A is an 8 Megabit (1024K-byte) Serial Flash memory, with advanced write protection mechanisms. The EN25Q80A supports the standard Serial Peripheral Interface (SPI), and a high performance Dual output as well as Quad I/O using SPI pins: Serial Clock, Chip Select, Serial DQ0(DI), DQ1(DO), DQ2(WP#) and DQ3(NC). SPI clock frequencies of up to 80MHz are supported allowing equivalent clock rates of 160MHz for Dual Output and 320MHz for Quad Output when using the Dual/Quad Output Fast Read instructions. The memory can be programmed 1 to 256 bytes at a time, using the Page Program instruction.
The EN25Q80A is designed to allow either single Sector/Block at a time or full chip erase operation. The EN25Q80A can be configured to protect part of the memory as the software protected mode. The device can sustain a minimum of 100K program/erase cycles on each sector or block.
Pinouts:
Features
• Single power supply operation – Full voltage range: 2.7-3.6 volt
• Serial Interface Architecture – SPI Compatible: Mode 0 and Mode 3
• 8 M-bit Serial Flash – 8 M-bit/1024 K-byte/4096 pages – 256 bytes per programmable page
• Standard, Dual or Quad SPI
(1) Standard SPI: CLK, CS#, DI, DO, WP#
(2) Dual SPI: CLK, CS#, DQ0, DQ1, WP#
(3) Quad SPI: CLK, CS#, DQ0, DQ1, DQ2, DQ3
• High performance
(1) 100MHz clock rate for one data bit
(2) 80MHz clock rate for two data bits
(3) 80MHz clock rate for four data bits
• Software and Hardware Write Protection:
– Write Protect all or portion of memory via software
– Enable/Disable protection with WP# pin
• High performance program/erase speed
