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参数资料
| 型号： | 78Q2120C09-DB |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 35/35页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO 78Q2120C |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 系列： | * |
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78Q2120C
10/100BASE-TX
Transceiver
Page: 9 of 35
2009 Teridian Semiconductor Corporation
Rev 1.3
LED INDICATORS
The LED pins use standard logic drivers. They output a logic low when the LED is meant to be on and a logic
high when it is meant to be off. The LED should be connected in series with a resistor between the output pin and
the power supply.
NAME
PIN
TYPE
DESCRIPTION
LEDL
40
CO
LED LINK: ON for link up.
LEDTX
39
CO
LED TRANSMIT: ON when there is a transmission (normally OFF).
LEDRX
38
CO
LED RECEIVE: ON when there is a reception (normally OFF).
LEDCOL
37
CO
LED COLLISION: In half duplex mode, this is a collision indicator and turns ON
when a collision occurs. In full duplex mode, this LED is held OFF.
LEDBTX
36
CO
LED 100BASE-TX: ON for 100BASE-TX connection and OFF for other
connections. LEDBTX is OFF during auto-negotiation.
LEDBT
48
CO
LED 10BASE-T: ON for 10BASE-T connection and OFF for other
connections.
LEDBT
is OFF during auto-negotiation.
LEDFDX
49
CO
LED FULL DUPLEX: ON when in full duplex mode and OFF when in half
duplex mode.
OSCILLATOR/CLOCK
NAME
PIN
TYPE
DESCRIPTION
CKIN
4
CIS
CLOCK INPUT: Connects to a 25 MHz TTL compatible clock source. This
pin should be held low when XTLP and XTLN are being used as the 25 MHz
clock source.
XTLP/N
59,58
A
CRYSTAL PINS: Should be connected to a 25 MHz crystal. When CKIN is
being used as the 25 MHz clock source, these pins should be left floating or
connected together.
MISCELLANEOUS PIN
NAME
PIN
TYPE
DESCRIPTION
INTR
35
COZ
INTERRUPT PIN: This pin is used to signal an interrupt to the media access
controller. The pin is held in the high impedance state when an interrupt is
not indicated. The pin will be forced high or low to signal an interrupt
depending upon the value of the INPOL bit (MR16.14). The events which
trigger an interrupt can be programmed via the Interrupt Control Register
located at address MR17.
NC
54,56
--
No Connect. Do not connect to ground or supply.
POWER SUPPLY AND GROUND
NAME
PIN
TYPE
DESCRIPTION
VCC
8,11,41,
43,57,63
S
3.3V SUPPLY
GND
3,5,9,10,
42,53,55,60
G
GROUND
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相关代理商/技术参数 |
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| 78Q2120-CGT | 制造商:未知厂家 制造商全称:未知厂家 功能描述:10/100BASE-TX Ethernet Transceiver |
| 78Q2123 | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:10/100BASE-TX Transceiver |
| 78Q2123/F | 功能描述:以太网 IC 10/100 Fast Ethernet MicroPHY RoHS:否 制造商:Micrel 产品:Ethernet Switches 收发器数量:2 数据速率:10 Mb/s, 100 Mb/s 电源电压-最大:1.25 V, 3.45 V 电源电压-最小:1.15 V, 3.15 V 最大工作温度:+ 85 C 封装 / 箱体:QFN-64 封装:Tray |
| 78Q2123/F1 | 功能描述:以太网 IC RoHS:否 制造商:Micrel 产品:Ethernet Switches 收发器数量:2 数据速率:10 Mb/s, 100 Mb/s 电源电压-最大:1.25 V, 3.45 V 电源电压-最小:1.15 V, 3.15 V 最大工作温度:+ 85 C 封装 / 箱体:QFN-64 封装:Tray |
| 78Q2123CGV/F | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:10/100BASE-TX Transceiver |
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