CAT25C03GLE-1.8 View Datasheet(PDF) - Catalyst Semiconductor => Onsemi
Part Name
Description
Manufacturer
CAT25C03GLE-1.8 Datasheet PDF : 12 Pages
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CAT25C11/03/05/09/17
DESIGN CONSIDERATIONS
The CAT25C11/03/05/09/17 powers up in a write dis- received, no data will be shifted into the CAT25C11/03/
able state and in a low power standby mode. A WREN 05/09/17, and the serial output pin (SO) will remain in a
instruction must be issued to perform any writes to the high impedance state until the falling edge of CS is
device after power up. Also,on power up CS should be detected again.
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,
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).
SO is in a high impedance. If an invalid op code is
ts Figure 7. WRSR Instruction Timing
r CS
Pa SCK
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
OPCODE
DATA IN
d SI
0
0
0
0
00
0
1
7
6
5
4
32
10
MSB
e SO
HIGH IMPEDANCE
u Note: Dashed Line= mode (1, 1) – – – –
tin Figure 8. Page Write Instruction Timing
n CS
o 0 1 2 3 4 5 6 7 8
21 22 23 24-31 32-39 24+(N-1)x8-1..24+(N-1)x8 24+Nx8-1
SK
c OPCODE
BYTE ADDRESS*
DATA IN
isSI
0 0 0 0 X* 0 1 0 AN
A0
Data
Byte 1
Data
Byte 2
Data
Byte 3
Data Byte N
7..1
0
HIGH IMPEDANCE
DSO
*Please check the Byte Address Table.
*X = 0 for CAT25C11, CAT25C03, CAT25C09 and CAT25C17; X = A8 for CAT25C05
Note: Dashed Line= mode (1, 1) – – – –
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
9
Doc. No. 1017, Rev. L
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