參數資料
型號： SC18IS600IBS,151
廠商： NXP SEMICONDUCTORS
元件分類： 總線控制器
英文描述： I2C BUS CONTROLLER, PQCC24
封裝： 4 X 4 MM, 0.85 MM HEIGHT, PLASTIC, MO-220, SOT616-3, HVQFN-24
文件頁數： 28/30頁
文件大?。?/td> 164K
代理商： SC18IS600IBS,151
SC18IS600_601_5
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 05 — 28 July 2008
7 of 30
NXP Semiconductors
SC18IS600/601
SPI to I2C-bus interface
6.2.1.1
Quasi-bidirectional output conguration
Quasi-bidirectional outputs can be used both as an input and output without the need to
recongure the pin. This is possible because when the pin outputs a logic HIGH, it is
weakly driven, allowing an external device to pull the pin LOW. When the pin is driven
LOW, it is driven strongly and able to sink a large current. There are three pull-up
transistors in the quasi-bidirectional output that serve different purposes.
One of these pull-ups, called the ‘very weak’ pull-up, is turned on whenever the pin latch
for the pin contains a logic 1. This very weak pull-up sources a very small current that will
pull the pin HIGH if it is left oating.
A second pull-up, called the ‘weak’ pull-up, is turned on when the pin latch for the pin
contains a logic 1 and the pin itself is also at a logic 1 level. This pull-up provides the
primary source current for a quasi-bidirectional pin that is outputting a 1. If this pin is
pulled LOW by an external device, the weak pull-up turns off, and only the very weak
pull-up remains on. In order to pull the pin LOW under these conditions, the external
device has to sink enough current to overpower the weak pull-up and pull the pin below its
input threshold voltage.
The third pull-up is referred to as the ‘strong’ pull-up. This pull-up is used to speed up
LOW-to-HIGH transitions on a quasi-bidirectional pin when the pin latch changes from a
logic 0 to a logic 1. When this occurs, the strong pull-up turns on for two system clock
cycles quickly pulling the pin HIGH.
The quasi-bidirectional pin conguration is shown in Figure 6.
Although the SC18IS600/601 is a 3 V device, most of the pins are 5 V tolerant. If 5 V is
applied to a pin congured in quasi-bidirectional mode, there will be a current owing from
the pin to VDD causing extra power consumption. Therefore, applying 5 V to pins
congured in quasi-bidirectional mode is discouraged.
A quasi-bidirectional pin has a Schmitt-triggered input that also has a glitch suppression
circuit.
Fig 6.
Quasi-bidirectional output conguration
002aab882
2 SYSTEM
CLOCK
CYCLES
weak
strong
very
weak
VDD
PP
P
VSS
pin latch data
GPIOn,
IOn pin
glitch rejection
input data
相關PDF資料
PDF描述
SC18IS600IBS I2C BUS CONTROLLER, PQCC24
SC2200UCL-300 32-BIT, 300 MHz, MICROPROCESSOR, PBGA432
SC2200UCL-300F 32-BIT, 300 MHz, MICROPROCESSOR, PBGA432
SC26C562A8A 2 CHANNEL(S), 10M bps, MULTI PROTOCOL CONTROLLER, PQCC52
SC26C92AA1A44 2 CHANNEL(S), 1M bps, SERIAL COMM CONTROLLER, PQCC44
相關代理商/技術參數
參數描述
SC18IS600IPW 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:SPI to IC-bus interface
SC18IS600IPW,112 功能描述:總線收發(fā)器 INTERFACE SPI/I2C RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
SC18IS600IPW,128 功能描述:總線收發(fā)器 SPI-I2C MSTER BRIDGE RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
SC18IS600IPW/S8HP 功能描述:SC18IS600I 制造商:nxp usa inc. 系列:- 包裝:剪切帶（CT） 零件狀態(tài):在售 協議:I2C 功能:控制器 接口:SPI 標準:- 電壓 - 電源:2.4 V ~ 3.6 V 電流 - 電源:11mA 工作溫度:-40°C ~ 85°C 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商器件封裝:16-TSSOP 標準包裝:1
SC18IS600IPW112 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述:
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數量 廠商 批號 封裝
添加更多采購

我的聯系方式

*
*
*