參數(shù)資料
型號(hào): S25FL064A0LNAI00
廠商: SPANSION LLC
元件分類: PROM
英文描述: 64M X 1 FLASH 3V PROM, PDSO16
封裝: 0.300 INCH, PLASTIC, MS-013AA, SOP-16
文件頁數(shù): 9/36頁
文件大?。?/td> 1495K
代理商: S25FL064A0LNAI00
18
S25FL064A
S25FL064A_00_C3 June 29, 2007
Da ta
Sh e e t
9.3
Read Identification (RDID)
The Read Identification (RDID) command outputs the one-byte manufacturer identification, followed by the
two-byte device identification, to the host system.
JEDEC assigns the manufacturer identification byte; for Spansion devices it is 01h. The device manufacturer
assigns the device identification: the first byte provides the memory type; the second byte indicates the
memory capacity. See Table 9.1 on page 18 or Table 9.4 on page 28 for device ID data.
The host system must first select the device by driving CS# low. The RDID command is then written to SI,
and each bit is latched on the rising edge of SCK. The 24-bit device identification data is output from the
memory array on SO at a frequency fSCK, on the falling edge of SCK.
The RDID command sequence is shown in Figure 9.3 and Table 9.4 on page 28.
Driving CS# high after the device identification data has been read at least once terminates the READ_ID
command. Driving CS# high at any time during data output also terminates the RDID operation.
The device rejects any RDID command issued while it is executing a program, erase, or Write Status Register
operation, and continues the operation uninterrupted.
Figure 9.3 Read Identification (RDID) Command Sequence and Data-Out Sequence
Table 9.1 Read Identification (RDID) Data-Out Sequence
Manufacturer Identification
Device Identification
Memory Type
Memory Capacity
01h
02h
16h
0
1
2
45
6
7
8
9
10
11
12
13
14
15
16
17 18
28 29 30 31
Command
MSB
Manufacturer Identification
Device Identification
Hi-Z
0
1
2
3
13
14
15
CS#
SCK
SI
SO
3
Mode 3
Mode 0
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