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參數(shù)資料
| 型號： | CAT25128YI-GT2 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | PROM |
| 英文描述： | 16K X 8 SPI BUS SERIAL EEPROM, PDSO8 |
| 封裝： | 4.40 X 3 MM, HALOGEN FREE AND ROHS COMPLIANT, MO-153, TSSOP-8 |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 172K |
| 代理商： | CAT25128YI-GT2 |
CAT25128
http://onsemi.com
4
Pin Description
SI: The serial data input pin accepts opcodes, addresses
and data. In SPI modes (0,0) and (1,1) input data is latched
on the rising edge of the SCK clock input.
SO: The serial data output pin is used to transfer data out of
the device. In SPI modes (0,0) and (1,1) data is shifted out
on the falling edge of the SCK clock.
SCK: The serial clock input pin accepts the clock provided
by the host and used for synchronizing communication
between host and CAT25128.
CS: The chip select input pin is used to enable/disable the
CAT25128. When CS is high, the SO output is tristated (high
impedance) and the device is in Standby Mode (unless an
internal write operation is in progress). Every communication
session between host and CAT25128 must be preceded by a
high to low transition and concluded with a low to high
transition of the CS input.
WP: The write protect input pin will allow all write
operations to the device when held high. When WP pin is
tied low and the WPEN bit in the Status Register (refer to
Status Register description, later in this Data Sheet) is set to
“1”, writing to the Status Register is disabled.
HOLD: The HOLD input pin is used to pause transmission
between host and CAT25128, without having to retransmit
the entire sequence at a later time. To pause, HOLD must be
taken low and to resume it must be taken back high, with the
SCK input low during both transitions. When not used for
pausing, it is recommended the HOLD input to be tied to
VCC, either directly or through a resistor.
Functional Description
The CAT25128 device supports the Serial Peripheral
Interface (SPI) bus protocol, modes (0,0) and (1,1). The
device contains an 8bit instruction register. The instruction
set and associated opcodes are listed in Table 7.
Reading data stored in the CAT25128 is accomplished by
simply providing the READ command and an address.
Writing to the CAT25128, in addition to a WRITE
command, address and data, also requires enabling the
device for writing by first setting certain bits in a Status
Register, as will be explained later.
After a high to low transition on the CS input pin, the
CAT25128 will accept any one of the six instruction
opcodes listed in Table 7 and will ignore all other possible
8bit combinations. The communication protocol follows
the timing from Figure 2.
Table 7. INSTRUCTION SET
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 0011
Read Data from Memory
WRITE
0000 0010
Write Data to Memory
Figure 2. Synchronous Data Timing
CS
SCK
SI
SO
tCNH
tCSS
tWH
tWL
tSU
tH
HIZ
VALID
IN
VALID
OUT
tCSH
tRI
tFI
tV
tHO
tCNS
tCS
HIZ
tDIS
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參數(shù)描述 |
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| CAT25128YI-GT3 | 功能描述:電可擦除可編程只讀存儲器 128K SPI Serial CMOS 電可擦除可編程只讀存儲器 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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT25-130JA | 功能描述:電阻器網(wǎng)絡(luò)與陣列 13ohm 5% Concave 8resistors RoHS:否 制造商:Vishay/Thin Film 產(chǎn)品類型:Networks 電路類型:Divider 電阻器數(shù)量: 電阻數(shù)值:10 kOhms 容差:0.1 % 溫度系數(shù): 管腳數(shù)量:3 工作溫度范圍:- 55 C to + 155 C 尺寸:1.02 mm W x 3.05 mm L x 1.4 mm H 引線間隔: 端接類型:SMD/SMT 封裝:Reel |
| CAT25-130JALF | 功能描述:電阻器網(wǎng)絡(luò)與陣列 13ohm 5% Concave 8resistors RoHS:否 制造商:Vishay/Thin Film 產(chǎn)品類型:Networks 電路類型:Divider 電阻器數(shù)量: 電阻數(shù)值:10 kOhms 容差:0.1 % 溫度系數(shù): 管腳數(shù)量:3 工作溫度范圍:- 55 C to + 155 C 尺寸:1.02 mm W x 3.05 mm L x 1.4 mm H 引線間隔: 端接類型:SMD/SMT 封裝:Reel |
| CAT25-131JA | 功能描述:電阻器網(wǎng)絡(luò)與陣列 130ohm 5% Concave 8resistors RoHS:否 制造商:Vishay/Thin Film 產(chǎn)品類型:Networks 電路類型:Divider 電阻器數(shù)量: 電阻數(shù)值:10 kOhms 容差:0.1 % 溫度系數(shù): 管腳數(shù)量:3 工作溫度范圍:- 55 C to + 155 C 尺寸:1.02 mm W x 3.05 mm L x 1.4 mm H 引線間隔: 端接類型:SMD/SMT 封裝:Reel |
| CAT25-131JALF | 功能描述:電阻器網(wǎng)絡(luò)與陣列 130ohm 5% Concave 8resistors RoHS:否 制造商:Vishay/Thin Film 產(chǎn)品類型:Networks 電路類型:Divider 電阻器數(shù)量: 電阻數(shù)值:10 kOhms 容差:0.1 % 溫度系數(shù): 管腳數(shù)量:3 工作溫度范圍:- 55 C to + 155 C 尺寸:1.02 mm W x 3.05 mm L x 1.4 mm H 引線間隔: 端接類型:SMD/SMT 封裝:Reel |
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