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ACE25C200 Datasheet(PDF) 11 Page - ACE Technology Co., LTD.

Part # ACE25C200
Description  2MB Serial Flash Memory
Download  32 Pages
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Manufacturer  ACE [ACE Technology Co., LTD.]
Direct Link  http://www.ace-ele.com
Logo ACE - ACE Technology Co., LTD.

ACE25C200 Datasheet(HTML) 11 Page - ACE Technology Co., LTD.

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ACE25C200
2MB Serial Flash Memory
VER 1.2
11
Dual SPI instructions Set
Instruction Name
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Clock number
(0-7)
(8-15)
(16-23)
(24-31)
(32-39)
(40-47)
Fast read dual output
3Bh
A23-A16
A15-A8
A7-A0
dummy
(D7-
D0,…)(6)
Fast read dual I/O
BBh
A23-A8
(5)
A7-A0, M7-M0
(5)
(D7-
DO,…)(6)
Notes:
1.
Data bytes are shifted with Most Significant Bit first. Byte fields with data in
parenthesis “( )” indicate data output from the
device on 1 or 2 DQ pins.
2.
The Status Register contents and Device ID will repeat continuously until CS# terminates the instruction.
3.
At least one byte of data input is required for Page Program and Program Security Sectors, up to 256 bytes of data input. If
more than 256 bytes of data are sent to the device, the addressing will wrap to the beginning of the page and overwrite
previously sent data.
4.
See Table 3 Manufacturer and Device Identification table for device ID information.
5.
Dual SPI address input format:
DQ0 = A22, A20, A18, A16, A14, A12, A10, A8 A6, A4, A2, A0, M6, M4, M2, M0
DQ1 = A23, A21, A19, A17, A15, A13, A11, A9 A7, A5, A3, A1, M7, M5, M3, M1
6.
Dual SPI data output format: DQ0 = (D6, D4, D2, D0)
DQ1 = (D7, D5, D3, D1)
Write Enable (WREN) (06h)
The Write Enable (WREN) instruction (Figure 5) sets the Write Enable Latch (WEL) bit in the Status
Register to a 1. The WEL bit must be set prior to every Page Program, Sector Erase, Block Erase,
Chip Erase, Write Status Register instruction. The Write Enable (WREN) instruction is entered by
driving CS# low, shifting the instruction code “06h” into the Data Input (DI) pin on the rising edge of
CLK, and then driving CS# high.
Figure 5 Write enable instruction
Write disable (WRDI) (04h)
The Write Disable (WRDI) instruction (Figure 6) resets the Write Enable Latch (WEL) bit in the Status
Register to a 0. The Write Disable (WRDI) instruction is entered by driving CS# low, shifting th e
instruction code “04h” into the DI pin and then driving CS# high. Note that the WEL bit is automatically
reset after Power-up and upon completion of the Write Status Register, Page Program, Sector Erase,
Block Erase, Chip Erase instructions.


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