S25FL004K Meet Spansion Inc., S25FL004K Datasheet - Page 53

• Manufacturer Part Number: S25FL004K
• Description: 4-mbit / 8-mbit / 16-mbit Cmos 3.0 Volt Flash Memory With 104-mhz Spi Serial Peripheral Interface Multi I/o Bus
• Manufacturer: Meet Spansion Inc.

7.29
July 14, 2011 S25FL004K-016K_00_02
Read Manufacturer / Device ID Quad I/O (94h)
The Read Manufacturer / Device ID Quad I/O instruction is an alternative to the Read Manufacturer / Device
ID instruction that provides both the JEDEC assigned manufacturer ID and the specific device ID at 4x speed.
The Read Manufacturer / Device ID Quad I/O instruction is similar to the Fast Read Quad I/O instruction. The
instruction is initiated by driving the CS# pin low and shifting the instruction code “94h” followed by a four
clock dummy cycles and then a 24-bit address (A23-A0) of 000000h, but with the capability to input the
Address bits four bits per clock. After which, the Manufacturer ID and the Device ID are shifted out four bits
per clock on the falling edge of CLK with most significant bit (MSB) first as shown in
ID values for the S25FL004K/S25FL008K/S25FL016K is listed in
If the 24-bit address is initially set to 000001h the Device ID 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 completed by driving CS# high.
Note:
1. The “Continuous Read Mode” bits M(7-0) must be set to Fxh to be compatible with Fast Read Quad I/O instruction.
CLK
CLK
CS#
IO0
IO2
CS#
IO0
IO1
IO3
IO2
IO1
IO3
Figure 7.33 Read Manufacturer / Device ID Quad I/O Diagram
D a t a
S25FL004K / S25FL008K / S25FL016K
S h e e t
Table 7.2, Device Identification on page
Figure
7.33. The Device
24.
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