参数资料
| 型号： | X95820WV14IZ-2.7T1 |
| 厂商： | Intersil |
| 文件页数： | 2/12页 |
| 文件大小： | 0K |
| 描述： | IC POT DGTL DUAL 10K OHM 14TSSOP |
| 标准包装： | 1 |
| 系列： | XDCP™ |
| 接片： | 256 |
| 电阻（欧姆）： | 10k |
| 电路数： | 2 |
| 温度系数： | 标准值 ±45 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | I²C（设备位址） |
| 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： | 14-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 14-TSSOP |
| 包装： | 标准包装 |
| 产品目录页面： | 1237 (CN2011-ZH PDF) |
| 其它名称： | X95820WV14IZ-2.7T1DKR |
10
FN8212.2
July 18, 2006
All I2C interface operations must begin with a START
condition, which is a HIGH to LOW transition of SDA while
SCL is HIGH. The X95820 continuously monitors the SDA
and SCL lines for the START condition and does not
respond to any command until this condition is met (See
Figure 15). A START condition is ignored during the power
up sequence and during internal non-volatile write cycles.
All I2C interface operations must be terminated by a STOP
condition, which is a LOW to HIGH transition of SDA while
SCL is HIGH (See Figure 15). A STOP condition at the end
of a read operation, or at the end of a write operation to
volatile bytes only places the device in its standby mode. A
STOP condition during a write operation to a non-volatile
byte, initiates an internal non-volatile write cycle. The device
enters its standby state when the internal non-volatile write
cycle is completed.
An ACK, Acknowledge, is a software convention used to
indicate a successful data transfer. The transmitting device,
either master or slave, releases the SDA bus after
transmitting eight bits. During the ninth clock cycle, the
receiver pulls the SDA line LOW to acknowledge the
reception of the eight bits of data (See Figure 16).
The X95820 responds with an ACK after recognition of a
START condition followed by a valid Identification Byte, and
once again after successful receipt of an Address Byte. The
X95820 also responds with an ACK after receiving a Data
Byte of a write operation. The master must respond with an
ACK after receiving a Data Byte of a read operation
A valid Identification Byte contains 1010 as the four MSBs,
and the following three bits matching the logic values
present at pins A2, A1, and A0. The LSB in the Read/Write
bit. Its value is “1” for a Read operation, and “0” for a Write
operation (See Table 2).
TABLE 2. IDENTIFICATION BYTE FORMAT
1
0
1
0
A2
A1
A0
R/W
(MSB)
(LSB)
Logic values at pins A2, A1, and A0 respectively
SDA
SCL
START
DATA
STOP
STABLE
CHANGE
DATA
STABLE
FIGURE 15. VALID DATA CHANGES, START, AND STOP CONDITIONS
SDA Output from
Transmitter
SDA Output from
Receiver
8
1
9
START
ACK
SCL from Master
High Impedance
FIGURE 16. ACKNOWLEDGE RESPONSE FROM RECEIVER
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
X95820
A
C
K
1
0
1
00
A
C
K
Write
Signal at SDA
00 0 0
A2A1A0
FIGURE 17. BYTE WRITE SEQUENCE
X95820
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| X95840UV20I-2.7 | 功能描述:IC XDCP QUAD 256TAP 50K 20-TSSOP RoHS:否 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) |
| X95840UV20I-2.7T1 | 功能描述:IC XDCP QUAD 256TAP 50K 20-TSSOP RoHS:否 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) |
| X95840UV20IZ-2.7 | 功能描述:IC XDCP QUAD 256TAP 50K 20-TSSOP 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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