參數(shù)資料
型號: PIC16C642-20/SP
廠商: Microchip Technology
文件頁數(shù): 32/125頁
文件大?。?/td> 0K
描述: IC MCU OTP 4KX14 COMP 28DIP
產(chǎn)品培訓(xùn)模塊: Asynchronous Stimulus
標準包裝: 15
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/復(fù)位,LED,POR,WDT
輸入/輸出數(shù): 22
程序存儲器容量: 7KB(4K x 14)
程序存儲器類型: 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: 0°C ~ 70°C
封裝/外殼: 28-DIP(0.300",7.62mm)
包裝: 管件
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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