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| 型号： | ISL88694IH5 |
| 厂商： | Intersil |
| 文件页数： | 5/7页 |
| 文件大小： | 0K |
| 描述： | IC ACCELERATOR SMBUS SOT-5 |
| 标准包装： | 1 |
| 类型： | SMBus 加速器 |
| Tx/Rx类型： | I²C Logic |
| 电源电压： | 2.7 V ~ 5.5 V |
| 电流 - 电源： | 80µA |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-5 |
| 包装： | 带卷 (TR) |
5
FN8239.1
January 21, 2005
Functional Description
SMBus Overview
The SMBus or I2C bus is a 2-wire multimaster bus, meaning
that more than one device connected to the bus is capable of
controlling it. Master devices communicate to other master
or slave devices using one clock and one data line. These
are both bidirectional.
In order to allow multimaster operation without bus
contention, it is necessary to allow each bus to be connected
to a positive supply voltage via a current-source or pull-up
resistor (see “System Diagram” on page 2). When the bus is
free, both lines are HIGH. The output stages of devices
connected to the bus must have an open-drain or open-
collector to perform the wired-AND function.
Simple pull-up resistors on the clock and data lines work well
unless there are long signal lines or many devices
connected to the bus. Then, the combined capacitance of
the bus increases the rise time on the signal to such an
extent that the communication becomes unreliable or fails to
meet the bus timing specifications. Smaller resistors can
sometimes compensate for the extra capacitance, but this
increases the current consumption when the signal lines are
pulled LOW.
FIGURE 5. VTRIPH VOLTAGE
FIGURE 6. IDD CURRENT. SMBus1=SMBus2=OPEN.
FIGURE 7. BOOST PULL-UP CURRENT vs. SMBus VOLTAGE
Typical Performance Curves (Continued)
0.50
0.55
0.60
0.65
0.70
0.45
0.40
0.35
0.30
-40
-20
0
204060
80
100
-60
TEMPERATURE (°C)
IN
P
U
T
THRESHOL
D
HIGH,
V
TR
IPH
(V
DD
-V)
VDD=5.5V
VDD=2.7V
75
80
85
90
95
70
65
60
55
-40
-20
0
204060
80
100
-60
TEMPERATURE (°C)
S
U
P
LY
C
URRENT
,
I DD
(A)
VDD=5.5V
VDD=2.7V
2.0
2.5
3.0
3.5
1.5
1.0
0.5
0
12
34
5
0
SMBus VOLTAGE (V)
BOOST
PULL-UP
CU
RRE
N
T,
I OU
T
_B
(mA)
6
VDD=5.0V
VDD=2.7V
ISL88694
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| ISL88694IH5-TK | 功能描述:IC SMBUS ACCELERATOR SOT23-5 RoHS:否 类别:集成电路 (IC) >> 接口 - 信号缓冲器，中继器，分配器 系列:- 标准包装:160 系列:- 类型:转发器 Tx/Rx类型:以太网 延迟时间:- 电容 - 输入:- 电源电压:2.37 V ~ 2.63 V 电流 - 电源:60mA 安装类型:表面贴装 封装/外壳:64-TQFP 裸露焊盘 供应商设备封装:64-TQFP-EP（10x10） 包装:托盘 其它名称:Q5134101 |
| ISL88694IH5Z | 制造商:Intersil Corporation 功能描述:SMBUS ACCELERATOR 5PIN SOT-23 - Tape and Reel |
| ISL88694IH5Z-TK | 功能描述:I2C 接口集成电路 ISL88694IH5Z SMBUS S IGNAL BOOSTER 5LD RoHS:否 制造商:NXP Semiconductors 电源电压-最大:5.5 V 电源电压-最小:2.3 V 最大工作频率:400 KHz 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-16 |
| ISL88705EVAL1 | 功能描述:EVAL BOARD 1 FOR ISL88705 RoHS:否 类别:编程器，开发系统 >> 评估演示板和套件 系列:* 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
| ISL88705IB846Z | 功能描述:IC SUPERVISOR 4.64V 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:低有效 复位超时:最小为 600 ms 电压 - 阀值:3.8V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:带卷 (TR) |
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