NX25P10 데이터 시트보기 (PDF) - Unspecified
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NX25P10 Datasheet PDF : 28 Pages
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1M / 2M / 4M-BIT SERIAL FLASH MEMORY with 40MHz SPI
NX25P10, NX25P20 AND NX25P40
Read Manufacturer / Device ID (90h)
The Read Manufacturer/Device ID instruction is an alterna-
tive to the Release from Power-down / Device ID instruction
that provides both the JEDEC assigned manufacturer ID
and the specific device ID.
The Read Manufacturer/Device ID instruction is very similar
to the Release from Power-down / Device ID instruction.
The instruction is initiated by driving the CS pin low and
shifting the instruction code “90h” followed by a 24-bit
address (A23-A0) of 000000h. After which, the Manufac-
turer ID for NexFlash (EFh) and the Device ID are shifted out
1 on the falling edge of CLK with most significant bit (MSB)
first as shown in figure 16. The Device ID values for the
NX25P10, NX25P20, and NX25P40 are listed in Table 4. If
the 24-bit address is initially set to 000001h the Device ID
2 will be read first and then followed by the Manufacturer ID.
The Manufacturer and Device IDs can be read continuously,
alternating from one to the other. The instruction is com-
pleted by driving CS high.
3
CS
Mode 3
CLK Mode 0
DI
DO
0 1 2 3 4 5 6 7 8 9 10 28 29 30 31
Instruction (90h)
Address (000000h)
23 22 21
*
High Impedance
32 1 0
CS
CLK
32 33 34 35 36 37 38 39 40 41 42 43 44 45
DI
Manufacturer ID (EFh)
** Device ID ( )
7 654 321 0
DO
*
* = MSB
** = See Table 4
Figure 16. Read Manufacturer / Device ID Diagram
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5
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9
10
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12
NexFlash Technologies, Inc.
21
PRELIMINARY MKP-0009 Rev 6 NXSF040I-0405
04/04/05 ©
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