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参数资料
型号： ISL22346
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： 5/13页
文件大小： 485K
代理商： ISL22346
5
FN6177.0
July 28, 2006
t
WC
(Note 20)
Non-volatile Write Cycle Time
12
20
ms
SERIAL INTERFACE SPECS
V
IL
A2, A1, A0, SHDN, SDA, and SCL
Input Buffer LOW Voltage
-0.3
0.3*V
CC
V
V
IH
A2, A1, A0, SHDN, SDA, and SCL
Input Buffer HIGH Voltage
0.7*V
CC
V
CC
+0.3
V
Hysteresis
SDA and SCL Input Buffer Hysteresis
0.05*
V
CC
V
V
OL
SDA Output Buffer LOW Voltage,
Sinking 4mA
0
0.4
V
Cpin
(Note 19)
A2, A1, A0, SHDN, SDA, and SCL Pin
Capacitance
10
pF
f
SCL
t
sp
SCL Frequency
400
kHz
(Note 19)
t
AA
Pulse Width Suppression Time at SDA
and SCL Inputs
Any pulse narrower than the max spec is
suppressed
50
ns
SCL Falling Edge to SDA Output Data
Valid
SCL falling edge crossing 30% of V
CC
, until
SDA exits the 30% to 70% of V
CC
window
900
ns
t
BUF
Time the Bus Must be Free Before the
Start of a New Transmission
SDA crossing 70% of V
CC
during a STOP
condition, to SDA crossing 70% of V
CC
during the following START condition
1300
ns
t
LOW
Clock LOW Time
Measured at the 30% of V
CC
crossing
1300
ns
t
HIGH
Clock HIGH Time
Measured at the 70% of V
CC
crossing
600
ns
t
SU:STA
START Condition Setup Time
SCL rising edge to SDA falling edge; both
crossing 70% of V
CC
600
ns
t
HD:STA
START Condition Hold Time
From SDA falling edge crossing 30% of V
CC
to SCL falling edge crossing 70% of V
CC
600
ns
t
SU:DAT
Input Data Setup Time
From SDA exiting the 30% to 70% of V
CC
window, to SCL rising edge crossing 30% of
V
CC
100
ns
t
HD:DAT
Input Data Hold Time
From SCL rising edge crossing 70% of V
CC
to SDA entering the 30% to 70% of V
CC
window
0
ns
t
SU:STO
STOP Condition Setup Time
From SCL rising edge crossing 70% of V
CC
,
to SDA rising edge crossing 30% of V
CC
600
ns
t
HD:STO
STOP Condition Hold Time for Read,
or Volatile Only Write
From SDA rising edge to SCL falling edge;
both crossing 70% of V
CC
1300
ns
t
DH
Output Data Hold Time
From SCL falling edge crossing 30% of V
CC
,
until SDA enters the 30% to 70% of V
CC
window
0
ns
t
R
SDA and SCL Rise Time
From 30% to 70% of V
CC
20 +
0.1 * Cb
250
ns
t
F
SDA and SCL Fall Time
From 70% to 30% of V
CC
20 +
0.1 * Cb
250
ns
Cb
Rpu
Capacitive Loading of SDA or SCL
Total on-chip and off-chip
10
400
pF
SDA and SCL Bus Pull-up Resistor
Off-chip
Maximum is determined by t
R
and t
F
For Cb = 400pF, max is about 2~2.5k
For Cb = 40pF, max is about 15~20k
1
k
t
SU:A
A2, A1 and A0 Setup Time
Before START condition
600
ns
Operating Specifications
Over the recommended operating conditions unless otherwise specified.
(Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
(NOTE 5)
MAX
UNIT
ISL22346
相关PDF资料
PDF描述
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)
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相关代理商/技术参数
参数描述
ISL22346UFRT20Z 功能描述:数字电位计 IC 128 TAP FL RNG IND QD DCP 20LD 4X4 TQFN 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
ISL22346UFRT20Z-TK 功能描述:数字电位计 IC 128 TAP FL RNG IND QD DCP 20LD 4X4 TQFN 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
ISL22346UFV20Z 功能描述:数字电位计 IC 128 TAP FL RNG IND QD DCP 20LD 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
ISL22346UFV20Z-TK 功能描述:数字电位计 IC 128 TAP FL RNG IND QD DCP 20LD 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
ISL22346WFRT20Z 功能描述:数字电位计 IC 128 TAP FL RNG IND QD DCP 20LD 4X4 TQFN 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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