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參數(shù)資料
| 型號： | MCZ33742EG |
| 廠商： | 飛思卡爾半導(dǎo)體(中國)有限公司 |
| 元件分類： | CAN |
| 英文描述： | System Basis Chip (SBC) with Enhanced High-Speed CAN Transceiver |
| 中文描述： | 系統(tǒng)基礎(chǔ)芯片的增強型（SBC）的高速CAN收發(fā)器 |
| 文件頁數(shù)： | 34/65頁 |
| 文件大?。?/td> | 1158K |
| 代理商： | MCZ33742EG |
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Analog Integrated Circuit Device Data
Freescale Semiconductor
34
33742
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
Figure 20. CAN Interface Levels
TXD AND RXD PINS
The TXD pin has an internal pullup to V2. The state of TXD
depends on the V2 status. RXD is a push-pull structure,
supplied by V2. When V2 is set at 5.0 V and CAN is TXRX
mode, RXD reports bus status. For details, refer to
Table 7
,
page
25
,
Table 9
, below, and
Table 10
, page
35
.
CAN TXRX MODE AND SLEW RATE SELECTION
The slew rate selection is done via CAN register (refer to
Tables 21
through
23
on page
45
). Four slew rates are
available and control the recessive-to-dominant and
dominant-to-recessive transitions. The delay time from TXD
pin to CAN bus, from CAN bus to RXD, and from the TXD to
RXD loop time is affected by the slew rate selection.
CANH
TXD
RXD
Typ 2.5 V
CANL
CAN Recessive State
CAN Dominant State
CAN Recessive State
Typ 2.5 V
V
CANH
-V
CANL
> 900 mV
V
CANH
-V
CANL
< 500 mV
Table 9. CAN Interface 33742S Modes and Pin Status—Operation with Ballast on V2
(44)
Mode
CAN Mode
(Controlled by SPI)
V2 Voltage
TXD Pin
RXD Pin
CANH/CANL
(Disconnected from
Other Node)
CAN
Communication
Unpowered
–
0.0 V
LOW
LOW
Floating to GND
NO
Reset (with Ballast)
–
0.0 V
LOW
LOW
Floating to GND
NO
Normal Request
(with Ballast)
–
0.0 V
LOW
LOW
Floating to GND
NO
Normal
Sleep
5.0 V
0.0 V
5.0 V
Floating to GND
NO
Normal
Normal
Slew Rate 0, 1, 2, 3
5.0 V
Internal Pullup
to V2
Report Bus State
HIGH if Bus
Recessive,
LOW if dominant
Bus Recessive
CANH = CANL = 2.5 V
YES
Standby with
External Ballast
Normal or Sleep
0.0 V
LOW
LOW
Floating to GND
NO
Sleep
Sleep
0.0 V
LOW
LOW
Floating to GND
NO.
Wake-up if enabled
Stop
Sleep
0.0 V
LOW
LOW
Floating to GND
NO.
Wake-up if enabled
Notes
44.
See also
Figure 31,
page
52
.
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| MCZ33742EGR2 | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC SBC-E-HS-CAN RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)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 |
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| MCZ33742SEGR2 | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC SBC-E-HS-CAN RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)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 |
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| MCZ33780EG | 制造商:Freescale Semiconductor 功能描述:DUAL DBUS MASTER INTERFACE 16SOIC |
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