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| 型號(hào)： | PIC16LC662T-04/PQ |
| 廠(chǎng)商： | Microchip Technology |
| 文件頁(yè)數(shù)： | 44/125頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU OTP 4KX14 COMP 44-MQFP |
| 標(biāo)準(zhǔn)包裝： | 900 |
| 系列： | PIC® 16C |
| 核心處理器： | PIC |
| 芯體尺寸： | 8-位 |
| 速度： | 4MHz |
| 外圍設(shè)備： | 欠壓檢測(cè)/復(fù)位，LED，POR，WDT |
| 輸入/輸出數(shù)： | 33 |
| 程序存儲(chǔ)器容量： | 7KB（4K x 14） |
| 程序存儲(chǔ)器類(lèi)型： | OTP |
| RAM 容量： | 176 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 3 V ~ 6 V |
| 振蕩器型： | 外部 |
| 工作溫度： | 0°C ~ 70°C |
| 封裝/外殼： | 44-QFP |
| 包裝： | 帶卷 (TR) |
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Micrel, Inc.
KSZ8862-16/32MQL
April 2007
25
M9999-040407-3.0
Forced mode and auto-negotiation disabled mode settings for 10BASE-FL fiber use the same registers (P1MBCR,
P1CR4). These registers are summarized in the Register Map section.
10BASE-T Transmit
The 10BASE-T driver (port 2 only) is incorporated with the 100BASE-TX driver to allow for transmission using the same
magnetic. They are internally wave-shaped and pre-emphasized into outputs with typically 2.3V amplitude. The harmonic
contents are at least 27dB below the fundamental frequency when driven by an all-ones Manchester-encoded signal.
10BASE-T Receive
On the receive side (port 2 only), input buffers and level detecting squelch circuits are employed. A differential input
receiver circuit and a phase-locked loop (PLL) perform the decoding function. The Manchester-encoded data stream is
separated into clock signal and NRZ data. A squelch circuit rejects signals with levels less than 400mV or with short pulse
widths to prevent noise at the RXP-or-RXM input from falsely triggering the decoder. When the input exceeds the squelch
limit, the PLL locks onto the incoming signal and the KSZ8862M decodes a data frame. The receiver clock is maintained
active during idle periods in between data reception.
LED Driver
The device provides a current mode fiber LED driver (port 1 only). The edge-enhanced current mode does not require any
output wave shaping. The drive current of the LED driver can be programmed through ATCR0 [7:6] register in Bank 44.
Post Amplifier
The chip also includes a post amplifier (port 1 only). The post amplifier is intended for interfacing the output of the pre-
amplifier of the PIN diode module. The minimum sensitivity of the amplifier is 2.5 mV (rms) for 10Base-FL receive on pin
RXM1 or 16mV (rms) for 100Base-SX receive on pin RXM1.
Power Management
The KSZ8862M features per port power-down mode. To save power, the user can power-down the port that is not in use
by setting bit 11 in either P1CR4 or P1MBCR register for port 1 and setting bit 11 in either P2CR4 or P2MBCR register for
port 2. To bring the port back up, reset bit 11 in these registers.
In addition, there is a full switch power-down mode. This mode shuts the entire switch down, when the PWRDN (pin 36) is
pulled down to low.
MDI/MDI-X Auto Crossover
To eliminate the need for crossover cables between similar devices, the KSZ8862M supports HP-Auto MDI/MDI-X and
IEEE 802.3u standard MDI/MDI-X auto crossover on port 2. HP-Auto MDI/MDI-X is the default.
The auto-sense function detects remote transmit and receive pairs and correctly assigns the transmit and receive pairs for
the KSZ8862M device. This feature is extremely useful when end users are unaware of cable types in addition to saving
on an additional uplink configuration connection. The auto-crossover feature can be disabled through the port control
registers.
The IEEE 802.3u standard MDI and MDI-X definitions are:
MDI
MDI-X
RJ45 Pins
Signals
RJ45 Pins
Signals
1
TD+
1
RD+
2
TD-
2
RD-
3
RD+
3
TD+
6
RD-
6
TD-
Table 1. MDI/MDI-X Pin Definitions
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PIC16LC662T-04/L | IC MCU OTP 4KX14 COMP 44PLCC |
| PIC16LC662T-04I/PT | IC MCU OTP 4KX14 COMP 44TQFP |
| PIC16LC662T-04I/PQ | IC MCU OTP 4KX14 COMP 44-MQFP |
| PIC16LC662T-04I/L | IC MCU OTP 4KX14 COMP 44PLCC |
| PIC16LC662-04/PT | IC MCU OTP 4KX14 COMP 44TQFP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PIC16LC66T-04/SO | 功能描述:8位微控制器 -MCU 14KB 368 RAM 22 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC16LC66T-04I/SO | 功能描述:8位微控制器 -MCU 14KB 368 RAM 22 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC16LC67-04/L | 功能描述:8位微控制器 -MCU 14KB 368 RAM 33 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC16LC67-04/P | 功能描述:8位微控制器 -MCU 14KB 368 RAM 33 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC16LC67-04/PQ | 功能描述:8位微控制器 -MCU 14KB 368 RAM 33 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
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