W25Q20EW
Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.
What the W25Q20EW family does
The W25Q20EW is a 2-Mbit serial flash memory featuring 4-KB sectors and support for both dual and quad SPI protocols. It operates on a single 1.8-V supply with a maximum clock frequency of 100 MHz and a read latency of 15 ns. This device supports standard, dual, and quad SPI instructions to optimize data throughput for various applications. It includes comprehensive write protection mechanisms and a status register to track busy states and programming progress. The part is available in multiple package types including SOIC, VSOP, USON, and WLCSP to suit different board space requirements. It serves as a high-density storage solution for embedded systems requiring non-volatile data retention.
W25Q20EW datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| supply voltage range | 1.65 V | — | 1.95 V | FR = 104MHz, fR = 50MHz; 9.2 Operating Ranges | Winbond datasheet, p. 50 — 9.2 Operating Ranges |
| operating temperature | -40 °C | — | 85 °C | Industrial; 9.2 Operating Ranges | Winbond datasheet, p. 50 — 9.2 Operating Ranges |
| clock frequency | — | — | 50 MHz | (03h); 9.6 AC Electrical Characteristics: | Winbond datasheet, p. 54 — 9.6 AC Electrical Characteristics: |
| standby current | — | 10 µA | 25 µA | /CS = VCC, VIN = GND or VCC; winbond | Winbond datasheet, p. 52 — winbond |
| input capacitance | — | — | 6 pF | VIN = 0V; winbond | Winbond datasheet, p. 52 — winbond |
| output capacitance | — | — | 8 pF | VOUT = 0V; winbond | Winbond datasheet, p. 52 — winbond |
| rise time | — | — | 5 ns | 9.5 AC Measurement Conditions | Winbond datasheet, p. 53 — 9.5 AC Measurement Conditions |
| memory size | — | 2 Mbit | — | Winbond datasheet, p. 5 | |
| data retention | — | 20 year | — | Winbond datasheet, p. 5 | |
| program erase cycles | — | 100 kcycle | — | Winbond datasheet, p. 5 | |
| page program time | — | 2.5 µs | 5 µs | (after first byte); 9.7 AC Electrical Characteristics (cont'd) | Winbond datasheet, p. 55 — 9.7 AC Electrical Characteristics (cont'd) |
| block erase time | — | 150 ms | 800 ms | (32kb); 9.7 AC Electrical Characteristics (cont'd) | Winbond datasheet, p. 55 — 9.7 AC Electrical Characteristics (cont'd) |
| sector erase time | — | 45 ms | 400 ms | (4kb); 9.7 AC Electrical Characteristics (cont'd) | Winbond datasheet, p. 55 — 9.7 AC Electrical Characteristics (cont'd) |
| output voltage low | — | — | 200 mV | IOL = 100 µA; winbond | Winbond datasheet, p. 52 — winbond |
| load capacitance | — | — | 30 pF | 9.5 AC Measurement Conditions | Winbond datasheet, p. 53 — 9.5 AC Measurement Conditions |
W25Q20EW frequently asked questions
What is the block erase time for 32kb?
The block erase time is 150 ms.
What is the clock frequency for the W25Q20EW under condition (03h); 9.6 AC Electrical Characteristics?
The clock frequency is 50 MHz.
What is the data retention period for the W25Q20EW?
The data retention is 20 year.
What is the input capacitance of the W25Q20EW when VIN = 0V?
The input capacitance is 6 pF when VIN = 0V.
What is the load capacitance under 9.5 AC Measurement Conditions?
The load capacitance is 30 pF under 9.5 AC Measurement Conditions.
What is the memory size of the W25Q20EW?
The memory size is 2 Mbit.
What is the operating temperature for the W25Q20EW under Industrial conditions as specified in section 9.2 Operating Ranges?
The operating temperature is 85 °C.
What is the output capacitance of the W25Q20EW when VOUT = 0V?
The output capacitance is 8 pF.
What is the output voltage low specification for the W25Q20EW?
The output voltage low is 200 mV at IOL = 100 µA.
What is the page program time for the W25Q20EW after the first byte?
The page program time is 2.5 µs (after first byte).
What is the program erase cycle endurance for the W25Q20EW?
The program erase cycles are 100 kcycle.
What is the rise time under 9.5 AC Measurement Conditions?
The rise time is 5 ns under 9.5 AC Measurement Conditions.