參數(shù)資料
型號(hào): CAT25020VA
元件分類: DRAM
英文描述: The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
中文描述: 該CAT24FC02是一個(gè)2 KB的EEPROM的國(guó)內(nèi)256個(gè)8位每字舉辦的串行CMOS
文件頁(yè)數(shù): 7/11頁(yè)
文件大?。?/td> 73K
代理商: CAT25020VA
7
CAT25010/20/40
Doc. No. 1006, Rev. L
Figure 4. Read Instruction Timing
Figure 5. RDSR Instruction Timing
Note: Dashed Line= mode (1, 1)
– – – –
SK
SI
SO
0
0
0
0
0
0
1
1
BYTE ADDRESS*
0
1
2
3
4
5
6
7
8
9
10
20
21
22
23
24
25
26
27
28
29
30
7
6
5
4
3
2
1
0
*Please check the instruction set table for address
CS
OPCODE
DATA OUT
MSB
HIGH IMPEDANCE
0
1
2
3
4
5
6
7
8
10
9
11
12
13
14
SCK
SI
DATA OUT
MSB
HIGH IMPEDANCE
OPCODE
SO
7
6
5
4
3
2
1
0
CS
0
0
0
0
0
1
0
1
to provide clock pulses. The internal address pointer is
automatically incremented to the next higher address
after each byte of data is shifted out. When the highest
address is reached, the address counter rolls over to
0000h allowing the read cycle to be continued indefinitely.
The read operation is terminated by pulling the
CS
high.
To read the status register, RDSR instruction should be
sent. The contents of the status register are shifted out
on the SO line. The status register may be read at any
time even during a write cycle. Read sequece is
illustrated in Figure 4. Reading status register is illustrated
in Figure 5.
WRITE Sequence
The CAT25010/20/40 powers up in a Write Disable
state. Prior to any write instructions, the WREN instruction
must be sent to CAT25010/20/40. The device goes into
Write enable state by pulling the
CS
low and then
clocking the WREN instruction into CAT25010/20/40.
The
CS
must be brought high after the WREN instruction
to enable writes to the device. If the write operation is
initiated immediately after the WREN instruction without
CS
being brought high, the data will not be written to the
相關(guān)PDF資料
PDF描述
CAT25020VE The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
CAT25020VI The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
CAT25020Y The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
CAT25020YA The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
CAT25020YE The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
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