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參數(shù)資料
| 型號： | CAT25020PE |
| 英文描述： | Replaced by SN74LVC162244A : 16-Bit Buffer/Driver With 3-State Outputs 48-TSSOP -40 to 85 |
| 中文描述： | 1K/2K/4K SPI串行EEPROM中的CMOS |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 73K |
| 代理商： | CAT25020PE |
4
CAT25010/20/40
Doc. No. 1006, Rev. L
FUNCTIONAL DESCRIPTION
The CAT25010/20/40 supports the SPI bus data
transmission protocol. The synchronous Serial Peripheral
Interface (SPI) helps the CAT25010/20/40 to interface
directly with many of today
’
s popular microcontrollers.
The CAT25010/20/40 contains an 8-bit instruction
register. (The instruction set and the operation codes
are detailed in the instruction set table)
After the device is selected with
CS
going low, the first
byte will be received. The part is accessed via the SI pin,
with data being clocked in on the rising edge of SCK.
The first byte contains one of the six op-codes that define
the operation to be performed.
PIN DESCRIPTION
SI:
Serial Input
SI is the serial data input pin. This pin is used to input all
opcodes, byte addresses, and data to be written to the
CAT25010/20/40. Input data is latched on the rising
edge of the serial clock for SPI modes (0, 0 & 1, 1).
SO:
Serial Output
SO is the serial data output pin. This pin is used to
transfer data out of the CAT25010/20/40. During a read
cycle, data is shifted out on the falling edge of the serial
Note:
(1) X=0 for 25010, 25020. X=A8 for 25040
(2) This parameter is tested initially and after a design or process change that affects the parameter.
(3) t
PUR
and t
PUW
are the delays required from the time V
CC
is stable until the specified operation can be initiated.
Power-Up Timing
(2)(3)
Symbol
Parameter
Max.
Units
t
PUR
t
PUW
Power-up to Read Operation
Power-up to Write Operation
1
1
ms
ms
Figure 1. Sychronous Data Timing
VALID IN
V
IH
V
IL
t
CSS
V
IH
V
IL
V
IH
VIL
V
OH
V
OL
HI-Z
t
SU
t
H
t
WH
t
WL
t
V
t
CS
t
CSH
t
HO
t
DIS
HI-Z
CS
SCK
SI
SO
t
RI
tFI
Note: Dashed Line= mode (1, 1)
–
– – – –
Instruction
Opcode
Operation
WREN
0000 0110
Enable Write Operations
WRDI
0000 0100
Disable Write Operations
RDSR
0000 0101
Read Status Register
WRSR
0000 0001
0000 X011
(1)
0000 X010
(1)
Write Status Register
READ
Read Data from Memory
WRITE
Write Data to Memory
INSTRUCTION SET
相關PDF資料 |
PDF描述 |
|---|---|
| CAT25020PI | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| CAT25020R | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| CAT25020RA | Replaced by SN74LVC162244A : 16-Bit Buffer/Driver With 3-State Outputs 48-SSOP -40 to 85 |
| CAT25020RE | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| CAT25020RI | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| CAT25020PI | 功能描述:電可擦除可編程只讀存儲器 (256x8) 2K 2.5-6.0 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT25020PI-1.8 | 功能描述:電可擦除可編程只讀存儲器 (256x8) 2K 1.8-6.0 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT25020R | 功能描述:電可擦除可編程只讀存儲器 (256x8) 2K 2.5-6.0 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT25020R-1.8 | 功能描述:電可擦除可編程只讀存儲器 (256x8) 2K 1.8-6.0 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT25020RA | 功能描述:電可擦除可編程只讀存儲器 (256x8) 2K 2.5-6.0 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
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