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| 型號(hào)： | MC68HC705JB2P |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDIP20 |
| 封裝： | PLASTIC, DIP-20 |
| 文件頁(yè)數(shù)： | 108/128頁(yè) |
| 文件大?。?/td> | 2493K |
| 代理商： | MC68HC705JB2P |
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GENERAL RELEASE SPECIFICATION
August 28, 1998
UNIVERSAL SERIAL BUS MODULE
MC68HC705JB2
10-12
REV 1.1
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
with respect to local ground reference without damage.
10.4.2.2 Low Speed (1.5 Mbs) Driver Characteristics
The rise and fall time of the signals on this cable are greater than 75 ns to keep
RFI emissions under FCC class B limits, and less than 300 ns to limit timing
delays and signaling skews and distortions. The driver reaches the specied static
signal levels with smooth rise and fall times, and minimal reections and ringing
when driving the cable. This driver is used only on network segments between low
speed devices and the ports to which they are connected.
Figure 10-12. Low Speed Driver Signal Waveforms
ONE BIT
TIME
(1.5 Mb/s)
SIGNAL PINS
PASS OUTPUT SPEC
LEVELS WITH MINIMAL
REFLECTIONS AND RINGING
VSE (min)
VSE (max)
VSS
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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PDF描述 |
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| MC68HC705JB4P | 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDIP28 |
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| MC68HC705K1CP | 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDIP16 |
| MC68HC705K1S | 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, CDIP16 |
| MC68HC705K1DW | 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDSO16 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC705JB4DW | 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述: |
| MC68HC705JJ7CDW | 功能描述:IC MCU 8BIT 20-SOIC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標(biāo)準(zhǔn)包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設(shè)備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲(chǔ)器容量:64KB（64K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND |
| MC68HC705JP7CDW | 功能描述:IC MCU 8BIT 28-SOIC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標(biāo)準(zhǔn)包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設(shè)備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲(chǔ)器容量:64KB（64K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND |
| MC68HC705JP7CP | 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述: |
| MC68HC705K1CDW | 制造商:Motorola Inc 功能描述: |
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