ZB25D80B General Description：
The ZB25D80B of non-volatile 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) serial protocols. This multiple width interface is called SPI Multi-I/O or MIO.
The SPI protocols use only 4 signals:
Chip Select (CS#)
Serial Clock (CLK)
Serial Data
- IO0 (DI)
- O1 (DO)
The ZB25D80B support the standard Serial Peripheral Interface (SPI) and Dual Output SPI : Serial Clock, Chip Select, Serial Data I/O0 (DI), O1 (DO). SPI clock frequencies of up to 100MHz are supported allowing equivalent clock rates of 200MHz (100MHz x 2) for Dual Output when using the Fast Read Dual Output . These transfer rates can outperform standard Asynchronous 8 and 16-bit Parallel Flash memories.
The ZB25D80B 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.
非易失性閃存設(shè)備的ZB25D80B支持標(biāo)準(zhǔn)的串行外設(shè)接口（SPI）。支持傳統(tǒng)的SPI單位串行輸入和輸出（單I/O或SIO)，以及可選的兩位（雙I/O或DIO)串行協(xié)議。這個(gè)多寬度接口稱為SPI多I/O或MIO。
SPI協(xié)議僅使用4個(gè)信號：
芯片選擇（CS#）
串行時(shí)鐘（CLK）
串行數(shù)據(jù)
- IO0 (DI)
- O1 (DO)
ZB25D80B支持標(biāo)準(zhǔn)的串行外設(shè)接口（SPI）和雙輸出SPI：串行時(shí)鐘、芯片選擇、串行數(shù)據(jù)I/O0（DI）、O1（DO）。當(dāng)使用快速讀雙輸出時(shí)，支持SPI時(shí)鐘頻率高達(dá)100MHz，允許雙輸出的200MHz（100MHz x 2）的等效時(shí)鐘速率。這些傳輸速率可以優(yōu)于標(biāo)準(zhǔn)的異步8位和16位并行閃存。
ZB25D80B為空間有限、信號連接和功率有限的系統(tǒng)提供了一個(gè)理想的存儲(chǔ)解決方案。這些內(nèi)存的靈活性和性能都優(yōu)于普通的串行閃存設(shè)備。它們是將代碼隱藏到RAM、直接執(zhí)行代碼（XIP）和存儲(chǔ)可重編程數(shù)據(jù)的理想選擇。
ZB25D80B Ordering Information：
ZB25D80B Block Diagram：
ZB25D80B Connection Diagrams：
ZB25D80B Signal Descriptions：
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