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參數(shù)資料
| 型號： | CAT5259WI-50-T1 |
| 廠商： | ON Semiconductor |
| 文件頁數(shù)： | 2/15頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC POT DPP 50K 256TAP 24SOIC |
| 標準包裝： | 1,000 |
| 接片： | 256 |
| 電阻（歐姆）： | 50k |
| 電路數(shù)： | 4 |
| 溫度系數(shù)： | 標準值 300 ppm/°C |
| 存儲器類型： | 非易失 |
| 接口： | I²C（設備位址） |
| 電源電壓： | 2.5 V ~ 6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 24-SOIC |
| 包裝： | 帶卷 (TR) |
CAT5259
http://onsemi.com
10
The basic sequence of the three byte instructions is
illustrated in Figure 11. These three-byte instructions
exchange data between the WCR and one of the Data
Registers. The WCR controls the position of the wiper. The
response of the wiper to this action will be delayed by tWR.
A transfer from the WCR (current wiper position), to a Data
Register is a write to non-volatile memory and takes a
minimum of tWR to complete. The transfer can occur
between one of the four potentiometers and one of its
associated registers; or the transfer can occur between all
potentiometers and one associated register.
Four instructions require a two-byte sequence to
complete, as illustrated in Figure 10. These instructions
transfer data between the host/processor and the CAT5259;
either between the host and one of the data registers or
directly between the host and the Wiper Control Register.
These instructions are:
XFR Data Register to Wiper Control Register
This transfers the contents of one specified Data
Register to the associated Wiper Control Register.
XFR Wiper Control Register to Data Register
This transfers the contents of the specified Wiper
Control Register to the specified associated Data
Register.
Gang XFR Data Register to Wiper Control Register
This transfers the contents of all specified Data
Registers to the associated Wiper Control Registers.
Gang XFR Wiper Counter Register to Data Register
This transfers the contents of all Wiper Control
Registers to the specified associated Data Registers.
Increment/Decrement Command
The final command is Increment/Decrement (Figures 12
and 13). The Increment/Decrement command is different
from the other commands. Once the command is issued and
the CAT5259 has responded with an acknowledge, the
master can clock the selected wiper up and/or down in one
segment steps; thereby providing a fine tuning capability to
the host. For each SCL clock pulse (tHIGH) while SDA is
HIGH, the selected wiper will move one resistor segment
towards the RH terminal. Similarly, for each SCL clock
pulse while SDA is LOW, the selected wiper will move one
resistor segment towards the RL terminal.
See Instructions format for more detail.
Figure 10. Two-byte Instruction Sequence
S
T
A
R
T
01
0
1
A2
A0 A
C
K
I2 I1 I0 R1 R0 P1
A
C
K
SDA
S
T
O
P
ID3 ID2 ID1 ID0
P0
Device ID
Internal
Instruction
Opcode
Address
Register
Address
Pot/WCR
Address
A1
A3
I3
Figure 11. Three-byte Instruction Sequence
I3
I2 I1 I0 R1 R0
ID3 ID2 ID1 ID0
Device ID
Internal
Instruction
Opcode
Address
Data
Register
Address
Pot/WCR
Address
WCR[7:0]
or
Data Register D[7:0]
S
T
A
R
T
01
0
1
A2 A1 A0 A
C
K
P1 P0 A
C
K
SDA
S
T
O
P
A
C
K
D7 D6 D5 D4 D3 D2 D1 D0
A3
Figure 12. Increment/Decrement Instruction Sequence
I3
I2 I1 I0
ID3 ID2 ID1 ID0
Device ID
Internal
Instruction
Opcode
Address
Data
Register
Address
Pot/WCR
Address
S
T
A
R
T
0101
A2 A1 A0
A
C
K
R0 P1 P0 A
C
K
SDA
S
T
O
P
I
N
C
1
I
N
C
2
I
N
C
n
D
E
C
1
D
E
C
n
R1
A3
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| CAT5259YI00 | 功能描述:數(shù)字電位計 IC DPP,NV,Quad 256 taps I2C RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| CAT5259YI-00 | 制造商:Catalyst Semiconductor 功能描述: |
| CAT5259YI-00-QJ | 制造商:ON Semiconductor 功能描述: |
| CAT5259YI-00-T2 | 功能描述:數(shù)字電位計 IC DPP NV QUAD 256 TAP I2C RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| CAT5259YI50 | 功能描述:數(shù)字電位計 IC DPP,NV,Quad 256 taps I2C RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
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