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CAT25C11SE-TE13 Datasheet(Hoja de datos) 9 Page - Catalyst Semiconductor

No. de Pieza. CAT25C11SE-TE13
Descripción  1K/2K/4K/8K/16K SPI Serial CMOS EEPROM
Descarga  12 Pages
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Fabricante  CATALYST [Catalyst Semiconductor]
Página de inicio  http://www.catalyst-semiconductor.com
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9
CAT25C11/03/05/09/17
Doc. No. 1017, Rev. J
Figure 7. WRSR Instruction Timing
DESIGN CONSIDERATIONS
The CAT25C11/03/05/09/17 powers up in a write dis-
able state and in a low power standby mode. A WREN
instruction must be issued to perform any writes to the
device after power up. Also,on power up
CS should be
brought low to enter a ready state and receive an
instruction. After a successful byte/page write or status
register write the CAT25C11/03/05/09/17 goes into a
write disable mode.
CS must be set high after the proper
number of clock cycles to start an internal write cycle.
Access to the array during an internal write cycle is
ignored and programming is continued. On power up,
SO is in a high impedance. If an invalid op code is
Figure 8. Page Write Instruction Timing
0
1
2
345
67
8
10
911
12
13
14
SCK
SI
MSB
HIGH IMPEDANCE
DATA IN
15
SO
CS
7
6
5
4
3
2
10
00
0
00
0
0
1
OPCODE
Note: Dashed Line= mode (1, 1) – –––
Note: Dashed Line= mode (1, 1) – – – –
received, no data will be shifted into the CAT25C11/03/
05/09/17, and the serial output pin (SO) will remain in a
high impedance state until the falling edge of
CS is
detected again.
When powering down, the supply should be taken down
to 0V, so that the CAT25C11/03/05/09/17 will be reset
when power is ramped back up. If this is not possible,
then, following a brown-out episode, the CAT25C11/
03/05/09/17 can be reset by refreshing the contents of
the Status Register (See Application Note AN10).
SK
SI
SO
00
00
X*
0
1
0
Data
Byte 1
012345678
21
22
23 24-31
32-39
Data
Byte 2
Data
Byte 3
Data Byte N
CS
OPCODE
7..1
0
24+(N-1)x8-1..24+(N-1)x8 24+Nx8-1
DATA IN
HIGH IMPEDANCE
BYTE ADDRESS*
*Please check the Byte Address Table.
AN
A0
*X = 0 for CAT25C11, CAT25C03, CAT25C09 and CAT25C17; X = A8 for CAT25C05




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