參數(shù)資料
型號: 78Q8430-100IGT/F
廠商: Maxim Integrated Products
文件頁數(shù): 5/88頁
文件大?。?/td> 0K
描述: IC LAN MEDIA ACCESS CTLR 100LQFP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 90
控制器類型: 以太網(wǎng)控制器,MAC/PHY
電源電壓: 3.3V
電流 - 電源: 230mA
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 100-LQFP
供應(yīng)商設(shè)備封裝: 100-LQFP(14x14)
包裝: 托盤
DS_8430_001
78Q8430 Data Sheet
Rev. 1.2
13
3.2.2
Media Dependent Interface (MDI) Pins
Table 3: MDI Pin Descriptions
Signal
Pin Number
Type
Description
TXP
97
A
Transmit Output Positive/Negative
Transmitter outputs for both 10BASE-T and 100BASE-TX.
MDI-X Mode: Receive Input Positive/Negative
Receiver inputs for both 10BASE-T and 100BASE-TX.
TXN
98
A
RXP
94
A
Receive Input Positive/Negative
Receiver inputs for both 10BASE-T and 100BASE-TX.
MDI-X Mode: Transmit Output Positive/Negative
Transmitter outputs for both 10BASE-T and 100BASE- TX.
RXN
93
A
3.2.3
LED Display (PHY) Pins
The LED pins use standard logic drivers. They output a logic low when the LED is meant to be on and
are tri-state when it is meant to be off. The LED cathode should be connected to the output pin and a
series resistor from the power supply connected to the LED anode.
Table 4: LED Pin Descriptions
Signal
Pin Number
Type
Description
LED0
90
OZ
PHY display LED0 (Link OK)
The default for LED0 is Link OK (LED is on for link established).
LED1
92
OZ
PHY display LED1 (Activity)
The default for LED1 is Link Activity (LED blinks for Rx or Tx data
transferred).
3.2.4
EEPROM Pins
Table 5: EEPROM Interface Pin Descriptions
Signal
Pin Number
Type
Description
PROM_CS
75
O
EEPROM Chip Select
Used to frame transmissions to and from an external
EEPROM.
PROM_CLK
74
O
EEPROM Clock
Clock for transmitting to and from an external EEPROM/ROM.
This is compatible with the slowest commercial parts, which
specify a maximum frequency of 1 MHz.
PROM_DI
77
I
EEPROM Data In
Data line for transmitting from the external EEPROM to the
controller. Must be high with no EEPROM present.
PROM_DO
76
OZ
EEPROM Data Out
Transfers data from the controller to an external
EEPROM/ROM.
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