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参数资料
| 型号： | ISL22319 |
| 厂商： | Intersil Corporation |
| 英文描述： | Low Noise, Low Power, I2C Bus, 128 Taps, Wiper Only(低噪声,低功率，I2C总线, 128抽头电位器) |
| 中文描述： | 低噪声，低功耗，I2C总线，128抽头，雨刷，只有（低噪声，低功率和I2C总线，128抽头电位器） |
| 文件页数： | 11/13页 |
| 文件大小： | 384K |
| 代理商： | ISL22319 |
11
FN6310.0
July 3, 2006
Write Operation
A Write operation requires a START condition, followed by a
valid Identification Byte, a valid Address Byte, a Data Byte,
and a STOP condition. After each of the three bytes, the
ISL22319 responds with an ACK. At this time, the device
enters its standby state (See Figure 14).
The non-volatile write cycle starts after STOP condition is
determined and it requires up to 20ms delay for the next
non-volatile write.
Read Operation
A Read operation consists of a three byte instruction
followed by one or more Data Bytes (See Figure 15). The
master initiates the operation issuing the following
sequence: a START, the Identification byte with the R/W bit
set to “0”, an Address Byte, a second START, and a second
Identification byte with the R/W bit set to “1”. After each of
the three bytes, the ISL22319 responds with an ACK. Then
the ISL22319 transmits Data Bytes as long as the master
responds with an ACK during the SCL cycle following the
eighth bit of each byte. The master terminates the read
operation (issuing a ACK and STOP condition) following the
last bit of the last Data Byte (See Figure 15).
In order to read back the non-volatile IVR, it is recommended
that the application reads the ACR first to verify the WIP bit
is 0. If the WIP bit (ACR[5]) is not 0, the host should repeat
its reading sequence again.
S
T
A
R
T
S
T
O
P
IDENTIFICATION
BYTE
ADDRESS
BYTE
DATA
BYTE
A
C
K
SIGNALS FROM
THE MASTER
SIGNALS FROM
THE SLAVE
A
C
K
0
0
0
1
1
A
C
K
WRITE
SIGNAL AT SDA
0 0 0 0
A0
A1
FIGURE 14. BYTE WRITE SEQUENCE
0
SIGNALS
FROM THE
MASTER
SIGNALS FROM
THE SLAVE
SIGNAL AT SDA
S
T
A
R
T
IDENTIFICATION
BYTE WITH
R/W=0
ADDRESS
BYTE
A
C
K
A
C
K
0
0
0
1
1
S
T
O
P
A
C
K
1
IDENTIFICATION
BYTE WITH
R/W=1
A
C
K
S
T
A
R
T
LAST READ
DATA BYTE
FIRST READ
DATA BYTE
A
C
K
0
0 0 0
A0
A1
A0
A1
FIGURE 15. READ SEQUENCE
A
C
K
0
0
0 1 0 1
ISL22319
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| ISL22319UFU8Z-TK | 功能描述:IC POT DGTL 128TP LN LP 8-MSOP 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:32 电阻（欧姆）:50k 电路数:1 温度系数:标准值 50 ppm/°C 存储器类型:易失 接口:3 线串行（芯片选择，递增，增/减） 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:SOT-23-6 细型，TSOT-23-6 供应商设备封装:TSOT-23-6 包装:带卷 (TR) |
| ISL22319WFU8Z | 功能描述:IC POT DGTL 128TP LN LP 8-MSOP 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:32 电阻（欧姆）:50k 电路数:1 温度系数:标准值 50 ppm/°C 存储器类型:易失 接口:3 线串行（芯片选择，递增，增/减） 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:SOT-23-6 细型，TSOT-23-6 供应商设备封装:TSOT-23-6 包装:带卷 (TR) |
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| ISL22323 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Dual Digitally Controlled Potentiometer XDCP |
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