参数资料
型号: X9428YS16IZ-2.7
厂商: Intersil
文件页数: 19/21页
文件大小: 0K
描述: IC DGTL POT 2K 1CH 16SOIC
标准包装: 47
系列: XDCP™
接片: 64
电阻(欧姆): 2k
电路数: 1
温度系数: 标准值 ±300 ppm/°C
存储器类型: 非易失
接口: 串行
电源电压: 2.7 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.295",7.50mm 宽)
供应商设备封装: 16-SOIC
包装: 管件
7
FN8197.1
April 26, 2006
Figure 3. Two-Byte Instruction Sequence
The Increment/Decrement command is different from
the other commands. Once the command is issued
and the X9428 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 VH/RH
terminal. Similarly, for each SCL clock pulse while
SDA is LOW, the selected wiper will move one resistor
segment towards the VL/RL terminal. A detailed
illustration of the sequence and timing for this
operation are shown in Figures 5 and 6 respectively.
Table 1. Instruction Set
Note:
(7) 1/0 = data is one or zero
S
T
A
R
T
0101
A3 A2
0
A0
A
C
K
I3
I2
I1
I0
R1 R0 0
0
A
C
K
SCL
SDA
S
T
O
P
Instruction
Instruction Set
Operation
I3 I2 I1 I0 R1 R0 X1 X0
Read Wiper Counter
Register
1
0
1
0
Read the contents of the Wiper Counter Register
Write Wiper Counter
Register
1
0
1
0
Write new value to the Wiper Counter Register
Read Data Register
1
0
1
1/0 1/0
0
Read the contents of the Data Register pointed to by
R1 - R0
Write Data Register
1
0
1/0 1/0
0
Write new value to the Data Register pointed to by
R1 - R0
XFR Data Register to
Wiper Counter Register
1
0
1
1/0 1/0
0
Transfer the contents of the Data Register pointed to
by R1 - R0 to its Wiper Counter Register
XFR Wiper Counter
Register to Data Register
1
0
1/0 1/0
0
Transfer the contents of the Wiper Counter Register
to the Data Register pointed to by R1 - R0
Increment/Decrement
Wiper Counter Register
0
1
0
1/0 Enable Increment/decrement of the Wiper Counter
Register
X9428
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