参数资料
| 型号： | X9258US24IT2 |
| 厂商： | Intersil |
| 文件页数： | 15/19页 |
| 文件大小： | 0K |
| 描述： | IC DGTL POT QUAD 100K 24SOIC |
| 标准包装： | 1,000 |
| 系列： | XDCP™ |
| 接片： | 256 |
| 电阻（欧姆）： | 100k |
| 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： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC |
| 包装： | 带卷 (TR) |
5
FN8168.6
December 15, 2011
ACK Polling Sequence
Instruction Structure
The next byte sent to the X9258 contains the instruction and
register pointer information. The four most significant bits are
the instruction. The next four bits point to one of the two
potentiometers and when applicable they point to one of four
associated registers. The format is shown in Figure 2.
.
The four high order bits define the instruction. The next 2 bits
(R1 and R0) select one of the four registers that is to be
acted upon when a register oriented instruction is issued.
The last bits (P1, P0) select which one of the four
potentiometers is to be affected by the instruction.
Four of the nine instructions end with the transmission of the
instruction byte. The basic sequence is illustrated in
Figure 3. These two-byte instructions exchange data
between the Wiper Counter Register and one of the data
registers. A transfer from a Data Register to a Wiper Counter
Register is essentially a write to a static RAM. The response
of the wiper to this action will be delayed tWRL. A transfer
from the Wiper Counter Register (current wiper position), to
a data register is a write to nonvolatile 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 it may occur globally, wherein the
transfer occurs between all of the potentiometers and one of
their associated registers.
Four instructions require a three-byte sequence to complete.
These instructions transfer data between the host and the
X9258; either between the host and one of the data registers
or directly between the host and the Wiper Counter Register.
These instructions are: Read Wiper Counter Register (read
the current wiper position of the selected potentiometer),
Write Wiper Counter Register (change current wiper position
of the selected potentiometer), Read Data Register (read the
contents of the selected nonvolatile register) and Write Data
Register (write a new value to the selected data register).
The sequence of operations is shown in Figure 4.
NONVOLATILE WRITE
COMMAND COMPLETED
ENTER ACK POLLING
ISSUE
START
ISSUE SLAVE
ADDRESS
ACK
RETURNED?
FURTHER
OPERATION?
ISSUE
INSTRUCTION
ISSUE STOP
NO
YES
PROCEED
ISSUE STOP
NO
PROCEED
FIGURE 2. INSTRUCTION BYTE FORMAT
I1
I2
I3
I0
R1
R0
P1
P0
WIPER COUNTER
REGISTER
SELECT
INSTRUCTIONS
REGISTER SELECT
S
T
A
R
T
0101
A3
A2
A1
A0
A
C
K
I3
I2
I1
I0
R1
R0
P1
P0
A
C
K
SCL
SDA
S
T
O
P
FIGURE 3. TWO-BYTE INSTRUCTION SEQUENCE
X9258
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| X9258US24IZ | 功能描述:IC DGTL POT QUAD 100K 24SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:XDCP™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 接片:256 电阻（欧姆）:100k 电路数:2 温度系数:标准值 35 ppm/°C 存储器类型:易失 接口:6 线串行（芯片选择，递增，增/减） 电源电压:2.6 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) |
| X9258US24IZ-2.7 | 功能描述:IC DGTL POT QUAD 100K 24SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:XDCP™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 接片:256 电阻（欧姆）:100k 电路数:2 温度系数:标准值 35 ppm/°C 存储器类型:易失 接口:6 线串行（芯片选择，递增，增/减） 电源电压:2.6 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) |
| X9258US24IZ-2.7T1 | 功能描述:IC DGTL POT QUAD 100K 24SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:XDCP™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 接片:256 电阻（欧姆）:100k 电路数:2 温度系数:标准值 35 ppm/°C 存储器类型:易失 接口:6 线串行（芯片选择，递增，增/减） 电源电压:2.6 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) |
| X9258US24IZ-2.7T2 | 功能描述:IC DGTL POT QUAD 100K 24SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:XDCP™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 接片:256 电阻（欧姆）:100k 电路数:2 温度系数:标准值 35 ppm/°C 存储器类型:易失 接口:6 线串行（芯片选择，递增，增/减） 电源电压:2.6 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) |
| X9258US24IZT1 | 功能描述:IC DGTL POT QUAD 100K 24SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:XDCP™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 接片:256 电阻（欧姆）:100k 电路数:2 温度系数:标准值 35 ppm/°C 存储器类型:易失 接口:6 线串行（芯片选择，递增，增/减） 电源电压:2.6 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) |
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