S-24CM01C Просмотр технического описания (PDF) - Seiko Instruments Inc

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S-24CM01C

2-WIRE SERIAL E2PROM

Seiko Instruments Inc 

Rev.2.0_02_S

2-WIRE SERIAL E2PROM

S-24CM01C

 ECC Function (Error correction function)

S-24CM01C Series adds 6 ECC bits for error correction to each 4 bytes with the same address of P0, W15 to W2. The

ECC function can make correction and output correct data even if wrong data of 1 bit is in the 4 bytes when reading.

In addition, the S-24CM01C Series rewrites the 4 bytes used as the rewriting minimum unit and 6 ECC bits if only 1 byte

data is input.

Therefore, it is recommended to rewrite data of each 4 bytes with the same address of P0, W15 to W2 in order to get the

maximum endurance in the application in which the data is rewritten frequently.

 Operation

1. Start condition

Start is identified by a high to low transition of the SDA line while the SCL line is stable at high.

Every operation begins from a start condition.

2. Stop condition

Stop is identified by a low to high transition of the SDA line while the SCL line is stable at high.

When a device receives a stop condition during a read sequence, the read operation is interrupted, and the device

enters standby mode.

When a device receives a stop condition during a write sequence, the reception of the write data is halted, and the S-

24CM01C initiates a write cycle.

tSU.STA tHD.STA

tSU.STO

SCL

SDA

Start Condition

Figure 7 Start / Stop Conditions

Stop Condition

9

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