EN25P64 데이터 시트보기 (PDF) - Eon Silicon Solution Inc.

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EN25P64

64 Megabit Uniform Sector, Serial Flash Memory

Eon Silicon Solution Inc. 

EN25P64

Manufacturer/

Device ID

90h

Read Identification 9Fh

Enter OTP mode 3Ah

dummy

dummy

00h

(M7-M0)

(ID7-ID0) (4)

01h

(ID7-ID0)

(M7-M0)

(M7-M0) (ID15-ID8) (ID7-ID0) (5)

Notes:

1. Data bytes are shifted with Most Significant Bit first. Byte fields with data in parenthesis “( )” indicate data being read from the

device on the DO pin.

2. The Status Register contents will repeat continuously until CS# terminate the instruction.

3. The Device ID will repeat continuously until CS# terminate the instruction.

4. The Manufacturer ID and Device ID bytes will repeat continuously until CS# terminate the instruction.

00h on Byte 4 starts with MID and alternate with DID, 01h on Byte 4 starts with DID and alternate with MID.

5. (M7-M0) : Manufacturer, (ID15-ID8) : Memory Type, (ID7-ID0) : Memory Capacity.

Table 5. Manufacturer and Device Identification

OP Code

(M7-M0) (ID15-ID0) (ID7-ID0)

ABh

16h

90h

1Ch

16h

9Fh

1Ch

2017h

Write Enable (WREN) (06h)

The Write Enable (WREN) instruction (Figure 5) sets the Write Enable Latch (WEL) bit. The Write

Enable Latch (WEL) bit must be set prior to every Page Program (PP), Sector Erase (SE), Bulk Erase

(BE) and Write Status Register (WRSR) instruction.

The Write Enable (WREN) instruction is entered by driving Chip Select (CS#) Low, sending the

instruction code, and then driving Chip Select (CS#) High.

Figure 5. Write Enable Instruction Sequence Diagram

This Data Sheet may be revised by subsequent versions

12

or modifications due to changes in technical specifications.

©2004 Eon Silicon Solution, Inc.,

Rev. D, Issue Date: 2009/1/8

www.eonssi.com.

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