产品应用与封装尺寸
图纸取自原厂规格书，点击可放大查看原始尺寸标注。
引脚定义与内部结构
| 引脚 | 符号 | 名称 |
|---|---|---|
| 4 | GND Ground | |
| 6 | CLK I Serial Clock Input | |
| 8 | VCC Power Supply | |
| 7 | BLOCK DIAGRAM |
数据来源：原厂规格书引脚图
关键参数速览
- 电源电压 VCC
- tVSL(1) 10
产品特点 Features
- Family of Serial Flash Memories Flexible Architecture with 4KB sectors
- W25X40CL: 4M-bit/512K-byte (524,288) – Uniform Sector/Block Erase (4/32/64-kbytes)
- 256-bytes per programmable page – Page program up to 256 bytes <1ms
- Uniform erasable 4KB, 32KB & 64KB regions. – More than 100,000 erase/write cycles
- More than 20-year data retention
- SPI with Single / Dual Outputs / I/O
- Standard SPI: CLK, /CS, DI, DO, /WP, /Hold Low Power, Wide Temperature Range
- Dual SPI: CLK, /CS, IO0, IO1, /WP, /Hold – Single 2.3V to 3.6V supply
- 1mA active current, <1µA Power-down(typ.)
- Data Transfer up to 208M-bits / second
- -40° to +85°C operating range
- Clock operation to 104MHz
- –208MHz equivalent Dual SPI Space Efficient Packaging
- Auto-increment Read capability – 8-pin SOIC 150-mil / VSOP 150-mil
- 8-pin SOIC 208-mil
- Efficient “Continuous Read Mode”
绝对最大额定值 Absolute Maximum Ratings（TA = 25°C）
超过下表数值可能造成器件永久损坏，设计时请留余量。
| 参数 | 符号 | 条件 | RANGE | 单位 |
|---|---|---|---|---|
| Supply Voltage | VCC | –0.6 to +4.6 | V | |
| Voltage Applied to Any | Pin VIO | Relative to Ground | –0.6 to VCC | +0.4 V |
| <20nS Transient | ||||
| Transient Voltage on any | Pin VIOT | –2.0V to VCC+2.0V | V | |
| Storage Temperature | TSTG | –65 to +150 | °C | |
| Lead Temperature | TLEAD | See Note (2) | °C |
数据来源：原厂规格书
电气特性 Electrical Characteristics（TA = 25°C）
| 参数 | 符号 | 单位 |
|---|---|---|
| W25X40CL | ||
| VCC (min) to /CS Low | tVSL(1) 10 | µs |
| Time Delay Before Write | Instruction tPUW(1) 5 | ms |
| Write Inhibit Threshold | Voltage VWI(1) 1.0 | 2.0 V |
| Figure 26b. Power-up, Power-Down Requirement | ||
| Publication | Release Date: October 15, 2012 W25X40CL | |
| Load Capacitance | CL | 30 pF |
| Input Pulse Voltages | VIN 0.1 VCC | to 0.9 VCC V |
| Input Timing Reference Voltages | IN 0.3 VCC | to 0.7 VCC V |
| Output Timing Reference | Voltages OUT 0.5 VCC | to 0.5 VCC V |
| Reference | Levels | |
| Figure 27. AC Measurement I/O Waveform | ||
| Publication | Release Date: October 15, 2012 W25X40CL W25X40CL |