24CSM01T-ISLASHMS datasheet(35/63 Pages) MICROCHIP

Part #	24CSM01T-I/MS

Description	1-Mbit, 3.4MHz I2C Serial EEPROM with 128-Bit Serial Number and Enhanced Software Write Protection

PDF	63 Pages

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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 2023 Microchip Technology Inc. and its subsidiaries

Preliminary

DS20006781B

-page 35

24CSM01

11.1

Manufacturer Identification

The Manufacturer Identifier portion of the ID is returned

in the 12 Most Significant bits of the three bytes read

out. The manufacturer reserved I2C identifier value is

‘0000-0000-1101b’ (00Dh). Therefore, the first byte

read out by the device will be 00h. The upper nibble of

the second byte read out is Dh.

The Least Significant 12 bits of the 24-bit Manufacturer

ID is comprised of an I2C identifier defined value that

indicates the device density and revision. The D11

through D3 bits indicate the device density and the D2

through D0 bits indicate the device revision. The overall

24-bit value returned by the 24CSM01 is 00D0D0h.

The output is shown more specifically in Table 11-1.

TABLE 11-1:

MANUFACTURER IDENTIFICATION REGISTER FORMAT

Data Type

Field Width

Bit Position

within

24-Bit Value

24CSM01 Response

Binary Value

Hex Value

Indication

Manufacturer

12 Bits

D23-D12

0000-0000-1101

00Dh

Reserved Value

Device Density

9 Bits

D11-D3

0000-1101-0

0D0h

I2C, 1-Mbit

Device Revision

3 Bits

D2-D0

000

Revision 1

24CSM01T-I/MS Datasheet(PDF) 35 Page - Microchip Technology

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