PM25LD010 데이터 시트보기 (PDF) - Unspecified

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PM25LD010

512Kbit/1 Mbit / 2 Mbit Single Operating Voltage Serial Flash Memory With 100 MHz Dual-Output SPI Bus

Unspecified 

Pm25LD512/010/ 020

DEVICE OPERATION (CONTINUED)

RDID COMMAND (READ PRODUCT

IDENTIFICATION) OPERATION

The Read Product Identification (RDID) instruction is

for reading out the old style of 8-bit Electronic

Table 11. Product Identification

Signature, whose values are shown as table of ID

Definitions. This is not same as RDID or JEDEC ID

Product Identification

instruction. It’s not recommended to use for new

design. For new design, please use RDID or JEDEC ID

instruction.

First Byte

Manufacturer ID

Second Byte

The RDES instruction code is followed by three dummy Device ID:

Device ID 1

bytes, each bit being latched-in on SI during the rising

Pm25LD512

05h

edge of SCK. Then the Device ID is shifted out on SO

with the MSB first, each bit been shifted out during the

Pm25LD010

10h

falling edge of SCK. The RDES instruction is ended by

Pm25LD020

11h

CE# goes high. The Device ID outputs repeatedly if

continuously send the additional clock cycles on SCK

while CE# is at low.

Data

9Dh

7Fh

Device ID 2

20h

21h

22h

Figure 3. Read Product Identification Sequence

CE#

01

78 9

31

38 39

46 47

54

SCK

INSTRUCTION 3 Dummy Bytes

SI

1010 1011b

HIGH IMPEDANCE

SO

Device ID1

Device ID1

Device ID1

Confidential information

Chingis Technology Corp.

11

DRAFT Date: August, 2010, Rev:0.4

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