Details

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BUY M45PE80-VMW6TG https://www.utsource.net/itm/p/12594185.html

Parameter	Value
Device Type	Serial Flash Memory
Memory Size	1 Mbit (128 K x 8)
Package	8-pin SOIC
Operating Voltage	2.7V to 3.6V
Temperature Range	-40掳C to +85掳C
Data Retention	20 years
Endurance	100,000 Program/Erase Cycles
Access Time	70 ns
Programming Time	5 ms (typical)
Erase Time	40 ms (typical)
Standby Current	1 渭A (max)
Active Current	5 mA (max)
Pin Configuration	VCC, GND, SI, SO, SCK, CS, WP, HOLD
Communication Protocol	SPI (Serial Peripheral Interface)

Instructions for Use

1. Power Supply:

   • Connect VCC to the power supply (2.7V to 3.6V).
   • Connect GND to the ground.

2. Pin Connections:

   • SI (Serial Input): Data input pin.
   • SO (Serial Output): Data output pin.
   • SCK (Serial Clock): Clock input pin.
   • CS (Chip Select): Active low to enable the device.
   • WP (Write Protect): High to enable write operations, low to protect against writes.
   • HOLD: High to allow normal operation, low to pause ongoing operations.

3. Initialization:

   • Ensure CS is high to deselect the device.
   • Set SCK to a stable state before starting any communication.
   • Bring CS low to select the device and start communication.

4. Communication Protocol:

   • Use SPI protocol for data transfer.
   • Send commands and data in a sequence of bits, with MSB first.
   • The device will respond on the SO pin when appropriate.

5. Common Commands:

   • Read Status Register (05h): Reads the status register.
   • Write Enable (06h): Allows write operations.
   • Write Disable (04h): Disables write operations.
   • Read Data (03h): Reads data from memory.
   • Write Data (02h): Writes data to memory.
   • Sector Erase (20h): Erases a sector (4K bytes).
   • Bulk Erase (C7h): Erases the entire chip.

6. Programming and Erasing:

   • Before writing or erasing, ensure the Write Enable command is issued.
   • After writing or erasing, wait for the operation to complete by checking the status register or using a delay based on typical times.

7. Data Protection:

   • Use the WP pin to prevent accidental writes.
   • Use the HOLD pin to pause ongoing operations if needed.

8. Power Down:

   • When not in use, set CS high to deselect the device and reduce power consumption.
   • For long-term storage, ensure the device is powered down properly to maintain data retention.

(For reference only)