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参数资料
| 型号： | 1894-40KLF |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 网络接口 |
| 英文描述： | DATACOM, INTERFACE CIRCUIT, QCC40 |
| 封装： | 6 X 6 MM, ROHS COMPLIANT, QFN-40 |
| 文件页数： | 6/52页 |
| 文件大小： | 459K |
| 代理商： | 1894-40KLF |
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ICS1894-40
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
PHYCEIVER
IDT / ICS 10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE 14
ICS1894-40
REV C 092909
Pins for Monitoring the Data Link table
Note:
1. During either a power-on reset or a hardware reset, each
multi-function configuration pin is an input that is sampled
when the ICS1894-40 exits the reset state. After sampling is
complete, these pins are output pins that can drive status
LEDs.
2. A software reset does not affect the state of a
multi-function configuration pin. During a software reset, all
multi-function configuration pins are outputs.
3. Each multi-function configuration pin must be pulled
either up or down with a resistor to establish the address of
the ICS1894-40. LEDs may be placed in series with these
resistors to provide a designated status indicator as
described in the Pins for Monitoring the Data Link table. Use
1K
resistors.
Caution: All pins listed in the Pins for Monitoring the Data
Link table must not float.
4. As outputs, the asserted state of a multi-function
configuration pin is the inverse of the sense sampled during
reset. This inversion provides a signal that can illuminate an
LED during an asserted state. For example, if a
multi-function configuration pin is pulled down to ground
through an LED and a current-limiting resistor, then the
sampled sense of the input is low. To illuminate this LED for
the asserted state, the output is driven high.
5. Adding 10K
resistors across the LEDs ensures the PHY
address is fully defined during slow VDD power-ramp
conditions.
6. PHY address 00 tri-states the MII interface. (Do not select
PHY address 00 unless you want the MII tri-stated.)
The following figure shows typical biasing and LED connections for the ICS1894-40.
This circuit decodes to PHY address = 1
Pin
LED Driven by the Pin’s Output Signal
P0AC
AC (Link Activity) LED
P1CL
CL (Collisions) LED
P2LI
LI (Link Integrity) LED
P3TD
TD (Transmit Data) LED
P4RD
RD (Receive Data) LED
ICS1894CK-40
10K
38
19
12
40
39
P4/LED2
P3/RXD2
P2//INT
P1/LED1
P0/LED0
INT
RXD2
10K
LED2
1K
10K
LED0
1K
10K
VDD
LED1
1K
10K
相关PDF资料 |
PDF描述 |
|---|---|
| 1894-40KLFT | DATACOM, INTERFACE CIRCUIT, QCC40 |
| 1895230000 | 15 A, STRIP TERMINAL BLOCK, 2 ROWS, 2 DECKS |
| 18F-08P-241 | 8 CONTACT(S), CABLE MOUNT, MINI DIN CONNECTOR, PLUG |
| 18F-08P-244 | 8 CONTACT(S), CABLE MOUNT, MINI DIN CONNECTOR, PLUG |
| 18F-08S-011 | 8 CONTACT(S), BOARD AND CABLE MOUNT, MINI DIN CONNECTOR, SOCKET |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 1894-40KLFT | 制造商:IDT 制造商全称:Integrated Device Technology 功能描述:10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE |
| 1894410000 | 制造商:Weidmuller 功能描述:CONN TERM BLOCKS SKT 4 POS 5.08MM SCRW ST PNL MNT 10A - Bulk |
| 1894419 | 功能描述:可插拔接线端子 MSTBA 2.5/ 5-G- 5,08 BK AU RoHS:否 制造商:Phoenix Contact 产品:Plugs 系列:PTS 端接类型:Spring Cage 位置/触点数量:5 线规量程:26-14 节距:5 mm 电流额定值:10 A 电压额定值:250 V 安装风格: 安装角: 触点电镀: |
| 1894420000 | 制造商:Weidmuller 功能描述:CONN TERM BLOCKS SKT 5 POS 5.08MM SCRW ST PNL MNT 10A - Bulk |
| 1894430000 | 制造商:Weidmuller 功能描述:CONN TERM BLOCKS SKT 6 POS 5.08MM SCRW ST PNL MNT 10A - Bulk |
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