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| 型号： | 78Q2123/F |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/38页 |
| 文件大小： | 0K |
| 描述： | TXRX 10/100 MDIX 3.3V COMM 32QFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 490 |
| 类型： | PHY 收发器 |
| 驱动器/接收器数： | 4/4 |
| 规程： | IEEE 802 |
| 电源电压： | 3 V ~ 3.6 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFN 裸露焊盘（5x5） |
| 包装： | 管件 |
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78Q2123/78Q2133 Data Sheet
DS_21x3_001
12
Rev. 1.6
RXD[3:0]
[5:8]
COZ
RECEIVE DATA: Received data is provided to the MAC via RXD[3:0].
These pins are tri-stated in isolate mode.
RX_ER
13
COZ
RECEIVE ERROR: RX_ER is asserted high when an error is detected
during frame reception. In PCS bypass mode, this pin becomes the MSB of
the receive 5-bit code group. This pin is tri-stated in isolate mode.
MDC
2
CIS
MANAGEMENT DATA CLOCK: MDC is the clock used for transferring
data via the MDIO pin.
MDIO
1
CIO
MANAGEMENT DATA INPUT/OUTPUT: MDIO is a bi-directional port
used to access management registers within the 78Q2123/78Q2133. This
pin requires an external pull-up resistor as specified in IEEE-802.3.
2.3
Control and Status
Signal
Pin
Type
Description
RST
23
CIS
ACTIVE LOW RESET: When pulled low the pin resets the chip. The reset
pulse must be long enough to guarantee stabilization of the supply
voltage and startup of the oscillator. Refer to the Electrical Specifications
for the reset pulse requirements. There are two other ways to reset the
chip:
1.
Through the internal power-on-reset (activated when the chip is
being powered up).
2.
Through the MII register bit (MR 0.15).
INTR
32
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.
2.4
MDI (Media Dependent Interface)
Signal
Pin
Type
Description
TXOP,
TXON
30,31
A
TRANSMIT OUTPUT POSITIVE/NEGATIVE: Transmitter differential
outputs for both 10base-T and 100base-TX.
RXIP,
RXIN
28,27
A
RECEIVE INPUT POSITIVE/NEGATIVE: Receiver differential inputs for
both 10BASE-T and 100BASE-TX.
2.5
Oscillator/Clock
Signal
Pin
Type
Description
XTLP
24
A
CRYSTAL INPUT: Should be connected to a 25 MHz crystal. If an
externally generated TTL compatibility clock signal is used, that signal is
applied here.
XTLN
25
A
CRYSTAL OUTPUT: Should be connected to a 25 MHz crystal. When an
external clock source is being used, this pin must be grounded.
2.6
Power Supply and Ground
Signal
Pin
Type
Description
PWR
9, 26
S
+3.3VDC SUPPLY
GND
10, 29
G
GROUND
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相关代理商/技术参数 |
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| 78Q2123R/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 |
| 78Q2123R/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 |
| 78Q2123S/F | 功能描述:1/1 Transceiver Full Ethernet 16-TQFN (5x5) 制造商:maxim integrated 系列:MicroPHY?? 包装:管件 零件状态:有效 类型:收发器 协议:以太网 驱动器/接收器数:1/1 双工:全 接收器滞后:- 数据速率:- 电压 - 电源:3.3V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-WQFN 裸露焊盘 供应商器件封装:16-TQFN（5x5） 标准包装:60 |
| 78Q2123SR/F | 功能描述:1/1 Transceiver Full Ethernet 16-TQFN (5x5) 制造商:maxim integrated 系列:MicroPHY?? 包装:带卷（TR） 零件状态:有效 类型:收发器 协议:以太网 驱动器/接收器数:1/1 双工:全 接收器滞后:- 数据速率:- 电压 - 电源:3.3V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-WQFN 裸露焊盘 供应商器件封装:16-TQFN（5x5） 标准包装:2,500 |
| 78Q2132 | 制造商:TDK 制造商全称:TDK Electronics 功能描述:1/10BASE-T HomePNA/Ethernet Transceiver |
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