参数资料
型号: ISL22316
厂商: Intersil Corporation
英文描述: Low Noise, Low Power I2C Bus, 128 Taps(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丝锥(低噪声,低功率和I2C总线,128抽头电位器)
文件页数: 12/13页
文件大小: 483K
代理商: ISL22316
12
FN6186.0
June 23, 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
ISL22316 responds with an ACK. At this time, the device
enters its standby state (See Figure 18).
The non-volatile write cycle starts after STOP condition is
determined and it requires up to 20 ms 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 19). 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 ISL22316 responds with an ACK. Then
the ISL22316 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 19).
In order to read back the non-volatile IVR, it is reccomended
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.
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 19. READ SEQUENCE
A
C
K
0
0
0 1 0 1
ISL22316
相关PDF资料
PDF描述
ISL22319 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)
ISL22326 Low Noise, Low Power, I2C Bus, 128 Taps(低噪声,低功率,I2C总线, 128抽头电位器)
ISL22329 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)
ISL22346 Low Noise, Low Power I2C Bus, 128 Taps(低噪声,低功率,I2C总线, 128抽头电位器)
ISL22349 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)
相关代理商/技术参数
参数描述
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ISL22316UFU10Z-TK 功能描述:数字电位计 IC 128 TAP FL RNG DCP 10LD RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel
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