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參數資料
| 型號： | MCZ33742EG |
| 廠商： | Freescale Semiconductor |
| 文件頁數： | 31/71頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC SYSTEM BASIS CHIP CAN 28-SOIC |
| 標準包裝： | 26 |
| 應用： | 自動 |
| 電流 - 電源： | 42mA |
| 電源電壓： | 5.5 V ~ 18 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 28-SOIC W |
| 包裝： | 管件 |
| 產品目錄頁面： | 808 (CN2011-ZH PDF) |
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Analog Integrated Circuit Device Data
Freescale Semiconductor
37
33742
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
CAN PHYSICAL INTERFACE
The SBC features a high-speed CAN physical interface for bus communication from 60kbps up to 1.0Mbps. Figure 19 is a
simplified block diagram of the CAN interface of the 33742.
Figure 19. Simplified Block Diagram of CAN Interface
CAN INTERFACE SUPPLY
The supply voltage for the CAN transceiver is the V2 pin. The CAN interface also has a supply path from the external supply
line through the VSUP pin. This path is used in CAN Sleep mode to allow wake-up detection.
During CAN communication (transmission and reception), the CAN interface current is sourced from the V2 pin. During CAN
low power mode, the current is sourced from the VSUP pin.
MAIN OPERATION MODES DESCRIPTION
The CAN interface of the SBC has two main operating modes: TXRX and Sleep mode. The modes are controlled by the CAN
SPI Register. In the TXRX mode, which is used for communication, four different slew rates are available for the user. In the
Sleep mode, the user has the option of enabling or disabling the remote CAN wake-up capability.
CAN DRIVER OPERATION IN TXRX MODE
When the CAN interface is in TXRX mode, the driver has two states: recessive or dominant. The driver state is controlled by
the TXD pin. The bus state is reported through the RXD pin.
When TXD is HIGH, the driver is set in recessive state, and CANH and CANL lines are biased to the voltage set at V2 divided
by 2, or approximately 2.5 V.
When TXD is LOW, the bus is set into dominant state: CANL and CANH drivers are active. CANL is pulled to ground, and
CANH is pulled HIGH toward 5.0 V (voltage at V2).
The RXD pin reports the bus state: CANH minus CANL voltage is compared versus an internal threshold (a few hundred
millivolts). If CANH minus CANL is below the threshold, the bus is recessive and RXD is set HIGH. If CANH minus CANL is above
the threshold, the bus is dominant and RXD is set LOW. This is illustrated in Figure 19.
V2
Bus Termination (60
)
CANH Line
CANL Line
TXD
RXD
Differential
Receiver
Driver
2.5 V
Wake-up
Receiver
Pattern
Recognition
Internal
VSUP
Wake-up
Signal
CANH
CANL
SPI Control
V2
QH
QL
33742
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MCZ33742EGR2 | 功能描述:網絡控制器與處理器 IC SBC-E-HS-CAN RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發器數量: 數據速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| MCZ33742SEG | 功能描述:網絡控制器與處理器 IC SBC-E-HS-CAN RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發器數量: 數據速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| MCZ33742SEGR2 | 功能描述:網絡控制器與處理器 IC SBC-E-HS-CAN RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發器數量: 數據速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| MCZ33780EG | 功能描述:多路器開關 IC DBUS MASTER RoHS:否 制造商:Texas Instruments 通道數量:1 開關數量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MCZ33780EG | 制造商:Freescale Semiconductor 功能描述:DUAL DBUS MASTER INTERFACE 16SOIC |
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