Specification	SST25WF040B-40I/W13G

Clock Frequency	40 MHz
Memory Depth	512 K
Memory Format	FLASH
Memory Interface (Type)	SPI
Memory Size	4 Mbit
Memory Type	Non-Volatile
Memory Width	8 bit
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Package / Case	Die
Package Name	Wafer
Technology	FLASH
Voltage - Supply (Maximum)	1.95 V
Voltage - Supply (Minimum)	1.65 V
Write Cycle Time - Page	1 ms
Write Cycle Time - Word	1 ms

SST25WF040 Series

Part	Clock Frequency	Package Length	Package Name	Package Width	Mounting Type	Memory Width	Memory Depth	Voltage - Supply (Minimum)	Voltage - Supply (Maximum)	Write Cycle Time - Page	Write Cycle Time - Word	Memory Format	Operating Temperature (Max)	Operating Temperature (Min)	Technology	Memory Size	Memory Type	Memory Interface (Type)	Package / Case
Microchip Technology SST25WF040B-40I/SN	40 MHz	0.154 in	8-SOIC	3.9 mm	Surface Mount	8 bit	512 K	1.65 V	1.95 V	1 ms	1 ms	FLASH	85 °C	-40 °C	FLASH	4 Mbit	Non-Volatile	SPI
Microchip Technology SST25WF040BT-40I/SN	40 MHz	0.154 in	8-SOIC	3.9 mm	Surface Mount	8 bit	512 K	1.65 V	1.95 V	1 ms	1 ms	FLASH	85 °C	-40 °C	FLASH	4 Mbit	Non-Volatile	SPI
Microchip Technology SST25WF040-40-5I-SAF	40 MHz	0.154 in	8-SOIC	3.9 mm	Surface Mount	8 bit	512 K	1.65 V	1.95 V	60 µs	60 µs	FLASH	85 °C	-40 °C	FLASH	4 Mbit	Non-Volatile	SPI
Microchip Technology SST25WF040B-40E/SN	40 MHz	0.154 in	8-SOIC	3.9 mm	Surface Mount	8 bit	512 K	1.65 V	1.95 V	1 ms	1 ms	FLASH	125 °C	-40 °C	FLASH	4 Mbit	Non-Volatile	SPI
Microchip Technology SST25WF040BT-40I/CS	40 MHz		8-CSP		Surface Mount	8 bit	512 K	1.65 V	1.95 V	1 ms	1 ms	FLASH	85 °C	-40 °C	FLASH	4 Mbit	Non-Volatile	SPI	8-UFBGA CSPBGA
Microchip Technology SST25WF040BT-40I/NP	40 MHz	2 mm	8-USON	3 mm	Surface Mount	8 bit	512 K	1.65 V	1.95 V	1 ms	1 ms	FLASH	85 °C	-40 °C	FLASH	4 Mbit	Non-Volatile	SPI	8-UFDFN Exposed Pad
Microchip Technology SST25WF040B-40I/W13G	40 MHz		Wafer			8 bit	512 K	1.65 V	1.95 V	1 ms	1 ms	FLASH	85 °C	-40 °C	FLASH	4 Mbit	Non-Volatile	SPI	Die
Microchip Technology SST25WF040-40-5I-SAF-T	40 MHz	0.154 in	8-SOIC	3.9 mm	Surface Mount	8 bit	512 K	1.65 V	1.95 V	60 µs	60 µs	FLASH	85 °C	-40 °C	FLASH	4 Mbit	Non-Volatile	SPI
Microchip Technology SST25WF040BT-40E/SN	40 MHz	0.154 in	8-SOIC	3.9 mm	Surface Mount	8 bit	512 K	1.65 V	1.95 V	1 ms	1 ms	FLASH	125 °C	-40 °C	FLASH	4 Mbit	Non-Volatile	SPI

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25 Series SPI Flash Brief

SST25WF040B-40I/W13G | Datasheet