参数资料
| 型号： | CAT5259YI-50-T2 |
| 厂商： | ON Semiconductor |
| 文件页数： | 14/15页 |
| 文件大小： | 0K |
| 描述： | IC POT DPP 50K 256TAP 24TSSOP |
| 标准包装： | 2,000 |
| 接片： | 256 |
| 电阻（欧姆）： | 50k |
| 电路数： | 4 |
| 温度系数： | 标准值 300 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | I²C（设备位址） |
| 电源电压： | 2.5 V ~ 6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 24-TSSOP |
| 包装： | 带卷 (TR) |
CAT5259
http://onsemi.com
8
Figure 5. Acknowledge Condition
ACKNOWLEDGE
1
START
SCL FROM
MASTER
89
DATA OUTPUT
FROM TRANSMITTER
DATA OUTPUT
FROM RECEIVER
Figure 6. Slave Address Bits
* A0, A1, A2 and A3 correspond to pin A0, A1, A2 and A3 of the device.
** A0, A1, A2 and A3 must compare to its corresponding hard wired input pins.
A0
A1
A2
A3
1
0
1
0
CAT5259
INSTRUCTION AND REGISTER DESCRIPTION
Slave Address Byte
The first byte sent to the CAT5259 from the
master/processor is called the Slave Address Byte. The most
significant four bits of the slave address are a device type
identifier. These bits for the CAT5259 are fixed at 0101[B]
(refer to Figure 8).
The next four bits, A3 A0, are the internal slave address
and must match the physical device address which is defined
by the state of the A3 A0 input pins for the CAT5259 to
successfully continue the command sequence. Only the
device which slave address matches the incoming device
address sent by the master executes the instruction. The A3
A0 inputs can be actively driven by CMOS input signals
or tied to VCC or VSS.
Instruction Byte
The next byte sent to the CAT5259 contains the
instruction and register pointer information. The four most
significant bits used provide the instruction opcode I3 I0.
The R1 and R0 bits point to one of the four data registers of
each associated potentiometer. The least two significant bits
point to one of four Wiper Control Registers. The format is
shown in Figure 9.
Table 12. DATA REGISTER SELECTION
Data Register Selected
R1
R0
DR0
0
DR1
0
1
DR2
1
0
DR3
1
Figure 7. Write Timing
S
DR1 WCRDATA
S
T
O
P
BUS ACTIVITY:
MASTER
SDA LINE
S
T
A
R
T
SLAVE
ADDRESS
INSTRUCTION
BYTE
Fixed Variable
op
code
Register Address Pot1
WCR
Address
Figure 8. Identification Byte Format
ID3
ID2
ID1
ID0
A3
A2
A1
A0
01
(MSB)
(LSB)
Device Type Identifier
Slave Address
ACK
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT525J | 功能描述:数字电位计 IC Com Temp 28K 3-Wire RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| CAT525JI | 功能描述:数字电位计 IC Ind Temp 28K 3-Wire RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| CAT525L | 功能描述:数字电位计 IC Com Temp 28K 3-Wire RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| CAT525LI | 功能描述:数字电位计 IC Ind Temp 28K 3-Wire RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| CAT525P | 功能描述:数字电位计 IC Com Temp 28K 3-Wire RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
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