Details

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BUY IS25WQ040-JNLE https://www.utsource.net/itm/p/7581256.html
FLASH - NOR Memory IC 4Mb (512K x 8) SPI 104MHz 8-SOP

Parameter	Symbol	Min	Typical	Max	Unit
Supply Voltage	VCC	1.7	-	3.6	V
Operating Temperature	TOPR	-40	-	85	°C
Storage Temperature	TSTG	-40	-	85	°C
Standby Current	ISB	-	1.0	2.0	μA
Active Current (Read)	IOPR	-	3.0	5.0	mA
Page Program Time	tPP	-	0.3	0.5	ms
Sector Erase Time	tSE	-	150	250	ms
Block Erase Time	tBE	-	250	350	ms
Chip Erase Time	tCE	-	2000	3000	ms
Data Retention	DR	-	100	-	Years
Write Protect Pin	WP	-	-	-	Logic
Hold Pin	HOLD	-	-	-	Logic
Memory Density	MD	-	4	-	Mbit
Number of Pages	NP	-	2048	-	Pages
Page Size	PS	-	256	-	Bytes
Sector Size	SS	-	4	-	KBytes
Block Size	BS	-	64	-	KBytes

Instructions for IS25WQ040-JNLE

1. Power Supply:

   • Ensure the supply voltage (VCC) is within the range of 1.7V to 3.6V.
   • The device can operate at temperatures from -40°C to 85°C.

2. Pin Configuration:

   • VCC: Power supply.
   • GND: Ground.
   • WP (Write Protect): When high, it prevents write operations.
   • HOLD (Hold): When high, it holds the device in a low-power state.
   • SI (Serial Input): Data input.
   • SO (Serial Output): Data output.
   • SCK (Serial Clock): Clock input.
   • CS (Chip Select): Low to select the device.

3. Basic Operations:

   • Read Operation:
     • Set CS low.
     • Send the read command (e.g., 0x03).
     • Send the address.
     • Read data.
     • Set CS high.
   • Write Enable:
     • Set CS low.
     • Send the write enable command (0x06).
     • Set CS high.
   • Page Program:
     • Set CS low.
     • Send the page program command (0x02).
     • Send the address.
     • Send the data.
     • Set CS high.
   • Sector Erase:
     • Set CS low.
     • Send the sector erase command (0x20).
     • Send the address.
     • Set CS high.
   • Block Erase:
     • Set CS low.
     • Send the block erase command (0x52).
     • Send the address.
     • Set CS high.
   • Chip Erase:
     • Set CS low.
     • Send the chip erase command (0x60).
     • Set CS high.

4. Status Register:

   • Read the status register to check the busy status or any errors.
   • Command: 0x05.
   • Bit 0 (WIP): Write in progress (1 = busy, 0 = not busy).

5. Write Protect:

   • Use the WP pin to prevent accidental writes.
   • High on WP pin will disable write operations.

6. Hold Function:

   • Use the HOLD pin to pause ongoing operations.
   • High on HOLD pin will hold the device in a low-power state.

7. Data Retention:

   • The device guarantees data retention for up to 100 years under specified conditions.

8. Handling Precautions:

   • Avoid static discharge as it can damage the device.
   • Ensure proper decoupling capacitors are used near the power supply pins to stabilize the voltage.

9. Storage:

   • Store the device in a dry, cool place to ensure long-term reliability.

(For reference only)