- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98012 > MC68HC05JB4DWR2 (MOTOROLA INC) 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PDSO28 PDF資料下載
參數(shù)資料
| 型號： | MC68HC05JB4DWR2 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PDSO28 |
| 封裝： | SOIC-28 |
| 文件頁數(shù)： | 110/134頁 |
| 文件大小： | 1305K |
| 代理商： | MC68HC05JB4DWR2 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁當前第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁
February 24, 1999
GENERAL RELEASE SPECIFICATION
MC68HC05JB4
UNIVERSAL SERIAL BUS MODULE
MOTOROLA
REV 2
10-11
USB registers. The following will detail the function of the regulator, transceiver
and control logic. See Section 10.5 for the register discussion.
10.4.1 Voltage Regulator
The USB data lines are required by the USB Specication to have a maximum
output voltage between 2.8V and 3.6V. The data lines are also required to have an
external 1.5K
pullup resistor connected between a data line and a voltage
source between 3.0V and 3.6V. Since the power provided by the USB cable is
specied to be between 4.4V and 5.0V, an on-chip regulator is used to drop the
voltage to the appropriate level for sourcing the USB transceiver and external
pullup resistor. An output pin driven by the regulator voltage is provided to source
the 1.5K
external resistor. Figure 10-11 shows the worst case electrical
connection for the voltage regulator.
Figure 10-11. Regulator Electrical Connections
10.4.2 USB Transceiver
The USB transceiver provides the physical interface to the USB D+ and D– data
lines. The transceiver is composed of two parts: an output drive circuit and a
differential receiver.
10.4.2.1 Output Driver Characteristics
The USB transceiver uses a differential output driver to drive the USB data signal
onto the USB cable. The static output swing of the driver in its low state is below
the VOL of 0.3 V with a 1.5 k load to 3.6 V and in its high state is above the VOH
of 2.8 V with a 15 k
load to ground. The output swings between the differential
high and low state are well balanced to minimize signal skew. Slew rate control on
the driver is used to minimize the radiated noise and cross talk. The driver’s
outputs support three-state operation to achieve bi-directional half duplex
operation. The driver can tolerate a voltage on the signal pins of –0.5 V to 3.8 V
LS
Transceiver
3.3V
R2
R1
R1 = 1.5K
±5%
R2 = 15K
±5%
Regulator
USB Data Lines
Host
or
Hub
USB Cable
4.4V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68HC705JB4DWR2 | 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDSO28 |
| MC68HC05L11PU | 8-BIT, MROM, 3.69 MHz, MICROCONTROLLER, PQFP100 |
| MC68HC05P7P | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP28 |
| MC68HC05SB7 | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28 |
| MC68HC705SB7 | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC05JJ6 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification Microcontrollers |
| MC68HC05JJ6CDW | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification Microcontrollers |
| MC68HC05JJ6CDWE | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification Microcontrollers |
| MC68HC05JJ6CP | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification Microcontrollers |
| MC68HC05JJ6CPE | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification Microcontrollers |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。