Details

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BUY AT45DB321E-MWHF-T https://www.utsource.net/itm/p/11249116.html

Parameter	Description	Value
Device		AT45DB321E-MWHF-T
Package	Package Type	TSOP-48
Operating Voltage (Vcc)	Supply Voltage Range	2.7 V to 3.6 V
Memory Size	Total Memory	32 Mbits (4 MBytes)
Page Size	Page Size for Read/Write Operations	264 Bytes (256 data bytes + 8 spare bytes)
Sector Size	Sector Size for Erase Operations	8 KBytes (64 pages)
Block Size	Block Size for Erase Operations	64 KBytes (8 sectors)
Write Time	Page Program Time	2.5 ms (max)
Erase Time	Sector Erase Time	300 ms (max)
Block Erase Time	Block Erase Time	2400 ms (max)
Data Retention	Data Retention at 25°C	100 years
Endurance	Write/Erase Cycles	100,000 cycles
Operating Temperature	Industrial Temperature Range	-40°C to +85°C
Storage Temperature	Storage Temperature Range	-65°C to +150°C
Standby Current	Standby Current (Vcc = 3.0V)	1 μA (max)
Active Current	Active Current (Vcc = 3.0V)	15 mA (max)
Read Current	Read Current (Vcc = 3.0V)	5 mA (max)
Write Current	Write Current (Vcc = 3.0V)	15 mA (max)
Interface	Communication Interface	SPI (Serial Peripheral Interface)
Clock Frequency	Maximum Clock Frequency	66 MHz
Data Transfer Rate	Maximum Data Transfer Rate	132 Mbit/s
Pin Configuration	Pin Count	48 pins
Dimensions	Package Dimensions	12.0 mm x 18.0 mm x 1.2 mm

Instructions for Use

1. Power Supply:

   • Ensure the supply voltage (Vcc) is within the range of 2.7 V to 3.6 V.
   • Connect the Vcc pin to the power supply and GND pin to ground.

2. Communication:

   • Use the SPI interface to communicate with the device.
   • Connect the SPI pins (MISO, MOSI, SCK, and CS) to the corresponding pins on your microcontroller or controller.

3. Initialization:

   • Before performing any read/write operations, initialize the device by selecting it (CS low) and sending the appropriate command sequence.

4. Reading Data:

   • To read data, send the Read command (0x03) followed by the address of the first byte to be read.
   • The device will then output the data on the MISO line.

5. Writing Data:

   • To write data, send the Write Enable command (0x06) to prepare the device for writing.
   • Send the Page Program command (0x02) followed by the address and data to be written.
   • Wait for the Write In Progress (WIP) bit to clear before initiating another write operation.

6. Erasing Data:

   • To erase a sector or block, send the Write Enable command (0x06).
   • Send the Sector Erase command (0x20) or Block Erase command (0x52) followed by the address of the sector or block to be erased.
   • Wait for the WIP bit to clear before initiating another erase operation.

7. Status Check:

   • To check the status of the device, send the Read Status Register command (0x05).
   • The device will return the status register value, which includes the WIP bit and other status information.

8. Power Management:

   • To reduce power consumption, use the Deep Power Down mode by sending the Deep Power Down command (0xB9).
   • To exit Deep Power Down mode, send the Release from Deep Power Down command (0xAB).

9. Handling:

   • Handle the device with care to avoid static discharge and physical damage.
   • Store the device in a dry, cool place when not in use.

10. Environmental Considerations:

    • Operate the device within the specified temperature ranges to ensure reliable performance and longevity.
    • Follow proper disposal procedures for end-of-life devices to minimize environmental impact.

(For reference only)