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    參數(shù)資料
    

    


    


    
型號(hào)：
PIC16C54C-20I/SS

    

    
廠商：
Microchip Technology

    

    
文件頁(yè)數(shù)：
39/194頁(yè)

    

    
文件大?。?/td>
0K

    

    
描述：
IC MCU OTP 512X12 20SSOP

    

    
產(chǎn)品培訓(xùn)模塊：
Asynchronous Stimulus
    
	8-bit PIC® Microcontroller Portfolio
    		

    

    
標(biāo)準(zhǔn)包裝：
67

    

    
系列：
PIC® 16C

    

    
核心處理器：
PIC
    		

    

    
芯體尺寸：
8-位
    		

    

    
速度：
20MHz
    		

    

    
外圍設(shè)備：
POR，WDT
    		

    

    
輸入/輸出數(shù)：
12
    		

    

    
程序存儲(chǔ)器容量：
768B（512 x 12）
    		

    

    
程序存儲(chǔ)器類(lèi)型：
OTP
    		

    

    
RAM 容量：
25 x 8
    		

    

    
電壓 - 電源 (Vcc/Vdd)：
3 V ~ 5.5 V
    		

    

    
振蕩器型：
外部
    		

    

    
工作溫度：
-40°C ~ 85°C
    		

    

    
封裝/外殼：
20-SSOP（0.209"，5.30mm 寬）
    		

    

    
包裝：
管件
    		

    

    
配用：
XLT20SS-1-ND - SOCKET TRANSITION 18DIP 20SSOP
    AC164307-ND - MODULE SKT FOR PM3 28SSOP
    		

    

    

    

	
    
    
    
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    PIC18F2450/4450
     2006 Microchip Technology Inc.
    Advance Information
    DS39760A-page 131
    The PPBRST bit (UCON<6>) controls the Reset status
    when Double-Buffering mode (ping-pong buffering) is
    used. When the PPBRST bit is set, all Ping-Pong
    Buffer Pointers are set to the Even buffers. PPBRST
    has to be cleared by firmware. This bit is ignored in
    buffering modes not using ping-pong buffering.
    The PKTDIS bit (UCON<4>) is a flag indicating that the
    SIE has disabled packet transmission and reception.
    This bit is set by the SIE when a SETUP token is
    received to allow setup processing. This bit cannot be
    set by the microcontroller, only cleared; clearing it
    allows the SIE to continue transmission and/or
    reception. Any pending events within the Buffer
    Descriptor Table will still be available, indicated within
    the USTAT register’s FIFO buffer.
    The RESUME bit (UCON<2>) allows the peripheral to
    perform a remote wake-up by executing Resume
    signaling. To generate a valid remote wake-up,
    firmware must set RESUME for 10 ms and then clear
    the bit. For more information on Resume signaling, see
    Sections 7.1.7.5, 11.4.4 and 11.9 in the USB 2.0
    specification.
    The SUSPND bit (UCON<1>) places the module and
    supporting circuitry (i.e., voltage regulator) in a low-
    power mode. The input clock to the SIE is also
    disabled. This bit should be set by the software in
    response to an IDLEIF interrupt. It should be reset by
    the microcontroller firmware after an ACTVIF interrupt
    is observed. When this bit is active, the device remains
    attached to the bus but the transceiver outputs remain
    Idle. The voltage on the VUSB pin may vary depending
    on the value of this bit. Setting this bit before a IDLEIF
    request will result in unpredictable bus behavior.
    14.2.2
    USB CONFIGURATION REGISTER
    (UCFG)
    Prior to communicating over USB, the module’s
    associated internal and/or external hardware must be
    configured. Most of the configuration is performed with
    the UCFG register (Register 14-2). The separate USB
    voltage regulator (see Section 14.2.2.7 “Internal
    Regulator”) is controlled through the Configuration
    registers.
    The UFCG register contains most of the bits that
    control the system level behavior of the USB module.
    These include:
     Bus Speed (full speed versus low speed)
     On-Chip Transceiver Enable
     Ping-Pong Buffer Usage
    The UCFG register also contains two bits which aid in
    module testing, debugging and USB certifications.
    These bits control output enable state monitoring and
    eye pattern generation.
    14.2.2.1
    Internal Transceiver
    The USB peripheral has a built-in, USB 2.0, full-speed
    and low-speed compliant transceiver, internally con-
    nected to the SIE. This feature is useful for low-cost
    single chip applications. The UTRDIS bit (UCFG<3>)
    controls the transceiver; it is enabled by default
    (UTRDIS = 0). The FSEN bit (UCFG<2>) controls the
    transceiver speed; setting the bit enables full-speed
    operation.
    The USB specification requires 3.3V operation for
    communications; however, the rest of the chip may be
    running at a higher voltage. Thus, the transceiver is
    supplied power from a separate source, VUSB.
    14.2.2.2
    External Transceiver
    This module provides support for use with an off-chip
    transceiver. The off-chip transceiver is intended for
    applications where physical conditions dictate the
    location of the transceiver to be away from the SIE. For
    example, applications that require isolation from the
    USB could use an external transceiver through some
    isolation to the microcontroller’s SIE (Figure 14-2).
    External transceiver operation is enabled by setting the
    UTRDIS bit.
    FIGURE 14-2:
    TYPICAL EXTERNAL
    TRANSCEIVER WITH
    ISOLATION
    Note:
    While in Suspend mode, a typical bus
    powered USB device is limited to 500
    μA
    of current. This is the complete current
    drawn by the PICmicro device and its sup-
    porting circuitry. Care should be taken to
    assure minimum current draw when the
    device enters Suspend mode.
    Note:
    The USB speed, transceiver and pull-up
    should only be configured during the mod-
    ule setup phase. It is not recommended to
    switch these settings while the module is
    enabled.
    PIC
    Microcontroller
    Transceiver
    VPO
    UOE
    Note:
    The above setting shows a simplified schematic
    for a full-speed configuration using an external
    transceiver with isolation.
    VP
    RCV
    VMO
    VM
    D+
    D-
    Isolation
    1.5 k
    Ω
    3.3V Derived
    from USB
    VUSB
    VDD
    VDD Isolated
    from USB
    
    
    
    
    
    


    


    

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    相關(guān)代理商/技術(shù)參數(shù)
    		

    參數(shù)描述
    		

    
    

    
PIC16C54C-40/P
功能描述:8位微控制器 -MCU .75KB 25 RAM 12 I/O 40MHz PDIP18 RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT

    

    
PIC16C54C-40/SO
功能描述:8位微控制器 -MCU .75KB 25 RAM 12 I/O 40MHz SOIC18 RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT

    

    
PIC16C54C-40/SS
功能描述:8位微控制器 -MCU .75KB 25 RAM 12 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT

    

    
PIC16C54CT-04/SO
功能描述:8位微控制器 -MCU .75KB 25 RAM 12 I/O 4MHz SOIC18 RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT

    

    
PIC16C54CT-04/SO092
 制造商:Microchip Technology Inc 功能描述:

    

    
    
    
    
	
    	
    
    
     
     
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