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參數資料
| 型號： | CAT25CXXX |
| 英文描述： | Supervisory Circuits with SPI Serial E2PROM, Precision Reset Controller and Watchdog Timer |
| 中文描述： | 監(jiān)控電路具有SPI串行E2PROM，精密復位控制器和看門狗定時器 |
| 文件頁數： | 5/10頁 |
| 文件大小： | 77K |
| 代理商： | CAT25CXXX |
4
CAT25010/20/40
Doc. No. 1006, Rev. G
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) tPUR and tPUW are the delays required from the time VCC is stable until the specified operation can be initiated.
Power-Up Timing(2)(3)
Symbol
Parameter
Max.
Units
tPUR
Power-up to Read Operation
1
ms
tPUW
Power-up to Write Operation
1
ms
Figure 1. Sychronous Data Timing
VALID IN
VIH
VIL
tCSS
VIH
VIL
VIH
VIL
VOH
VOL
HI-Z
tSU
tH
tWH
tWL
tV
tCS
tCSH
tHO
tDIS
HI-Z
CS
SCK
SI
SO
tRI
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
Write Status Register
READ
0000 X011(1)
Read Data from Memory
WRITE
0000 X010(1)
Write Data to Memory
INSTRUCTION SET
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相關代理商/技術參數 |
參數描述 |
|---|---|
| CAT25LV65-25 | 制造商:Catalyst Semiconductor 功能描述: |
| CAT25M01LI-G | 功能描述:IC EEPROM 1MBIT 10MHZ 制造商:on semiconductor 系列:- 包裝:管件 零件狀態(tài):有效 格式 - 存儲器:EEPROMs - 串行 存儲器類型:EEPROM 存儲容量:1M（128K x 8） 速度:10MHz 接口:SPI 串行 電壓 - 電源:1.8 V ~ 5.5 V 工作溫度:-40°C ~ 85°C（TA） 封裝/外殼:- 供應商器件封裝:- 標準包裝:50 |
| CAT25M01VI-G | 制造商:ON Semiconductor 功能描述:1MB SPI SER CMOS EEPROM - Rail/Tube |
| CAT25M01VI-GT3 | 制造商:ON Semiconductor 功能描述:1MB SPI SER CMOS EEPROM - Tape and Reel 制造商:ON Semiconductor 功能描述:REEL / 1MB SPI SER CMOS EEPROM 制造商:ON Semiconductor 功能描述:1 Mb SPI Serial EEPROM |
| CAT25M01XI | 制造商:ON Semiconductor 功能描述:1MB SPI SER CMOS EEPROM - Rail/Tube 制造商:ON Semiconductor 功能描述:TUBE / 1MB SPI SER CMOS EEPROM |
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