S25FL016A View Datasheet(PDF) - Spansion Inc.

Part Name

Description

Manufacturer

S25FL016A

16 Megabit CMOS 3.0 Volt Flash Memory with 50-MHz SPI (Serial Peripheral Interface) Bus

Spansion Inc. 

Data Sheet

Figure 9.3 Read Identification (RDID) Command Sequence and Data-Out Sequence

CS#

Mode 3

SCK

Mode 0

SI

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 28 29 30 31

Command

Hi-Z

SO

Manufacturer Identification

MSB

Device Identification

15 14 13

32 1 0

Table 9.1 Read Identification (RDID) Data-Out Sequence

Manufacturer Identification

01h

Device Identification

Memory Type

Memory Capacity

02h

14h

9.4 Write Enable (WREN)

The Write Enable (WREN) command (see Figure 9.4) sets the Write Enable Latch (WEL) bit to a 1, which

enables the device to accept a Write Status Register, program, or erase command. The WEL bit must be set

prior to every Page Program (PP), Erase (SE or BE) and Write Status Register (WRSR) command.

The host system must first drive CS# low, write the WREN command, and then drive CS# high.

Figure 9.4 Write Enable (WREN) Command Sequence

CS#

SCK

Mode 3

Mode 0

SI

01 23 4 567

Command

Hi-Z

SO

18

S25FL016A

S25FL016A_00_C3 January 7, 2008

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