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| 型号： | MCP2551-I/SN |
| 厂商： | Microchip Technology |
| 文件页数： | 20/24页 |
| 文件大小： | 0K |
| 描述： | IC TRANSCEIVER CAN HI-SPD 8-SOIC |
| 产品培训模块： | CAN Bus Protection |
| 标准包装： | 100 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | CAN |
| 电源电压： | 4.5 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 管件 |
| 产品目录页面： | 685 (CN2011-ZH PDF) |
| 配用： | AC164130-2-ND - DAUGHTER BOARD CAN/LIN PICTAIL MCP2515DM-BM-ND - BOARD DEMO FOR MCP2515/51 MCP2515DM-PTPLS-ND - BOARD DAUGHTER PICTAIL MCP2515 AC164130-ND - BOARD DAUGHT PICTL PLUS ECAN/LIN |
2010 Microchip Technology Inc.
DS21667F-page 5
MCP2551
1.5
TXD Permanent Dominant
Detection
If the MCP2551 detects an extended Low state on the
TXD input, it will disable the CANH and CANL output
drivers in order to prevent the corruption of data on the
CAN bus. The drivers are disabled if TXD is Low for
more
than
1.25 ms
(minimum).
This
implies
a
maximum bit time of 62.5 s (16 kb/s bus rate),
allowing up to 20 consecutive transmitted Dominant
bits during a multiple bit error and error frame scenario.
The drivers remain disabled as long as TXD remains
Low. A rising edge on TXD will reset the timer logic and
enable the CANH and CANL output drivers.
1.6
Power-on Reset
When the device is powered on, CANH and CANL
remain in a high-impedance state until VDD reaches the
voltage-level VPORH. In addition, CANH and CANL will
remain in a high-impedance state if TXD is Low when
VDD reaches VPORH. CANH and CANL will become
active only after TXD is asserted High. Once powered
on, CANH and CANL will enter a high-impedance state
if the voltage level at VDD falls below VPORL, providing
voltage brown-out protection during normal operation.
1.7
Pin Descriptions
The 8-pin pinout is listed in Table 1-3.
TABLE 1-3:
MCP2551 PINOUT
1.7.1
TRANSMITTER DATA INPUT (TXD)
TXD is a TTL-compatible input pin. The data on this pin
is driven out on the CANH and CANL differential output
pins. It is usually connected to the transmitter data
output of the CAN controller device. When TXD is Low,
CANH and CANL are in the Dominant state. When TXD
is High, CANH and CANL are in the Recessive state,
provided that another CAN node is not driving the CAN
bus with a Dominant state. TXD has an internal pull-up
resistor (nominal 25 k
Ω to VDD).
1.7.2
GROUND SUPPLY (VSS)
Ground supply pin.
1.7.3
SUPPLY VOLTAGE (VDD)
Positive supply voltage pin.
1.7.4
RECEIVER DATA OUTPUT (RXD)
RXD is a CMOS-compatible output that drives High or
Low depending on the differential signals on the CANH
and CANL pins and is usually connected to the receiver
data input of the CAN controller device. RXD is High
when the CAN bus is Recessive and Low in the
Dominant state.
1.7.5
REFERENCE VOLTAGE (VREF)
Reference Voltage Output (defined as VDD/2).
1.7.6
CAN LOW (CANL)
The CANL output drives the Low side of the CAN
differential bus. This pin is also tied internally to the
receive input comparator.
1.7.7
CAN HIGH (CANH)
The CANH output drives the high-side of the CAN
differential bus. This pin is also tied internally to the
receive input comparator.
1.7.8
SLOPE RESISTOR INPUT (RS)
The RS pin is used to select High-Speed, Slope-Control
or Standby modes via an external biasing resistor.
Pin
Number
Pin
Name
Pin Function
1
TXD
Transmit Data Input
2VSS
Ground
3VDD
Supply Voltage
4
RXD
Receive Data Output
5VREF
Reference Output Voltage
6
CANL
CAN Low-Level Voltage I/O
7
CANH
CAN High-Level Voltage I/O
8RS
Slope-Control Input
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP2551T-E/SN | 功能描述:网络控制器与处理器 IC Hi Spd CAN Transceiv RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| MCP2551T-E/SN-CUT TAPE | 制造商:Microchip 功能描述:MCP2551 Series 5.5 V 1 Mb/s Surface Mount High-Speed CAN Transceiver - SOIC-8 |
| MCP2551T-I/SN | 功能描述:网络控制器与处理器 IC Hi Spd CAN Transceiv RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| MCP2551T-I/SN-CUT TAPE | 制造商:Microchip 功能描述:MCP2551 Series 5.5 V 1 Mb/s Surface Mount High-Speed CAN Transceiver - SOIC-8 |
| MCP2551T-I/SNG | 制造商:Microchip Technology Inc 功能描述:CAN 1MBPS SLEEP/STANDBY 5V IND 8SOIC N - Tape and Reel |
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