Details

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BUY M93C66-WMN6TP https://www.utsource.net/itm/p/1463987.html
16 Kbit, 8 Kbit, 4 Kbit, 2 Kbit and 1 Kbit 8-bit or 16-bit wide MICROWIRE® serial access EEPROM

Parameter	Description	Value
Device Type	Serial EEPROM	-
Memory Size	Memory Size	256 x 8 bits (256B)
Organization	Memory Organization	32 x 8 bits
Package	Package Type	WDFN-8 (WMN6)
Operating Voltage	Supply Voltage Range (Vcc)	1.7V to 5.5V
Operating Temperature	Operating Temperature Range (Toper)	-40°C to +85°C
Interface	Serial Interface	SPI
Data Retention	Data Retention	100 years
Write Cycles	Endurance (Write Cycles)	1,000,000 cycles
Access Time	Access Time (tACC)	50 ns
Standby Current	Standby Current (ISB)	1 μA
Active Current	Active Current (IACT)	2 mA
Write Current	Write Current (IWRITE)	5 mA
Write Time	Write Time (tWRITE)	5 ms
Clock Frequency	Maximum Clock Frequency (fCLK)	10 MHz
Pin Configuration	Pin 1: Vss, Pin 2: SCK, Pin 3: SI, Pin 4: CS,	-
	Pin 5: SO, Pin 6: HOLD, Pin 7: WP, Pin 8: Vcc

Instructions for Use

1. Power Supply:

   • Connect Vcc to the positive supply voltage (1.7V to 5.5V).
   • Connect Vss to ground.

2. SPI Interface:

   • SCK: Serial Clock input.
   • SI: Serial Data Input.
   • SO: Serial Data Output.
   • CS: Chip Select (active low).
   • HOLD: Hold pin (active low) can be used to pause ongoing operations.
   • WP: Write Protect pin (active low) can be used to prevent write operations.

3. Initialization:

   • Ensure CS is high to keep the device in standby mode.
   • To activate the device, bring CS low.

4. Read Operation:

   • Set CS low.
   • Send the Read command (0x03).
   • Send the address (7-bit address followed by a read/write bit set to 0).
   • Clock out the data from SO.

5. Write Operation:

   • Set CS low.
   • Send the Write Enable command (0x06).
   • Send the Write command (0x02).
   • Send the address (7-bit address followed by a read/write bit set to 1).
   • Send the data to be written.
   • Wait for the write cycle to complete (5 ms).

6. Write Protect:

   • Set WP low to prevent any write operations.
   • Set WP high to allow write operations.

7. Hold Function:

   • Set HOLD low to pause ongoing operations.
   • Set HOLD high to resume operations.

8. Power Down:

   • Set CS high to put the device into standby mode.
   • Disconnect power when not in use to save energy.

9. Endurance and Data Retention:

   • The device supports up to 1,000,000 write cycles.
   • Data retention is guaranteed for 100 years under normal operating conditions.

Notes:

• Ensure that the supply voltage and clock frequency are within the specified ranges to avoid damage or incorrect operation.
• For detailed timing diagrams and additional commands, refer to the datasheet provided by the manufacturer.

(For reference only)