參數(shù)資料
        型號(hào): PIC16C662T-20E/PT
        廠商: Microchip Technology
        文件頁數(shù): 32/125頁
        文件大?。?/td> 0K
        描述: IC MCU OTP 4KX14 COMP 44TQFP
        標(biāo)準(zhǔn)包裝: 1,200
        系列: PIC® 16C
        核心處理器: PIC
        芯體尺寸: 8-位
        速度: 20MHz
        外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,LED,POR,WDT
        輸入/輸出數(shù): 33
        程序存儲(chǔ)器容量: 7KB(4K x 14)
        程序存儲(chǔ)器類型: OTP
        RAM 容量: 176 x 8
        電壓 - 電源 (Vcc/Vdd): 4 V ~ 6 V
        振蕩器型: 外部
        工作溫度: -40°C ~ 125°C
        封裝/外殼: 44-TQFP
        包裝: 帶卷 (TR)
        Micrel, Inc.
        KSZ8862-16/32MQL
        April 2007
        14
        M9999-040407-3.0
        Pin
        Number
        Pin Name
        Type
        Pin Function
        Asynchronous write strobe, active Low.
        34
        DGND
        Gnd
        Digital IO ground
        35
        ADSN
        Ipd
        Address Strobe Not
        For systems that require address latching, the rising edge of ADSN indicates the
        latching moment of A15-A1 and AEN.
        36
        PWRDN
        Ipu
        Full-chip power-down. Low = Power down; High or floating = Normal operation.
        37
        AGND
        Gnd
        Analog ground
        38
        VDDA
        P
        1.2V analog VDD input power supply from VDDCO (pin24) through external Ferrite
        bead and capacitor.
        39
        AGND
        Gnd
        Analog ground
        40
        NC
        No connect
        41
        100FX/10FL
        Ipu
        Fiber mode select for port 1. 1K ohm pull-up to 3.3V for 100Base-FX, 100 ohm pull-
        down to GND for 100Base-SX or 10Base-FL.
        42
        AGND
        Gnd
        Analog ground
        43
        VDDA
        P
        1.2V analog VDD input power supply from VDDCO (pin24) through external Ferrite
        bead and capacitor.
        44
        FXSD1
        I
        Fiber signal detect input for port 1 in 100Base-FX fiber mode. 1K ohm pull-up to 3.3V
        for port 1 in 100Base-SX or 10Base-FL fiber modes.
        45
        RXP1
        I/O
        Port 1 physical receive (MDI) signal (+ differential) from external fiber module
        46
        RXM1
        I/O
        Port 1 physical receive (MDI) signal (– differential) from external fiber module
        47
        AGND
        Gnd
        Analog ground
        48
        TXP1
        I/O
        Port 1 physical transmit (MDI) signal (+ differential) to external fiber module
        49
        TXM1
        I/O
        Port 1 physical transmit (MDI) signal (– differential) to external fiber module
        50
        VDDATX
        P
        3.3V analog VDD input power supply with well decoupling capacitors.
        51
        VDDARX
        P
        3.3V analog VDD input power supply with well decoupling capacitors.
        52
        RXM2
        I/O
        Port 2 physical receive (MDI) or transmit (MDIX) signal (- differential)
        53
        RXP2
        I/O
        Port 2 physical receive (MDI) or transmit (MDIX) signal (+ differential)
        54
        AGND
        Gnd
        Analog ground
        55
        TXM2
        I/O
        Port 2 physical receive (MDI) or transmit (MDIX) signal (- differential)
        56
        TXP2
        I/O
        Port 2 physical receive (MDI) or transmit (MDIX) signal (+ differential)
        57
        VDDA
        P
        1.2 analog VDD input power supply from VDDCO (pin24) through external Ferrite
        bead and capacitor.
        58
        AGND
        Gnd
        Analog ground
        59
        NC
        Ipu
        No connect
        60
        NC
        Ipu
        No connect
        61
        ISET
        O
        Set physical transmits output current.
        Pull-down this pin with a 3.01K 1% resistor to ground.
        62
        AGND
        Gnd
        Analog ground
        63
        VDDAP
        P
        1.2V analog VDD for PLL input power supply from VDDCO (pin24) through external
        Ferrite bead and capacitor.
        64
        AGND
        Gnd
        Analog ground
        65
        X1
        I
        25MHz crystal or oscillator clock connection.
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