參數(shù)資料
型號(hào): MCZ33742EG
廠商: 飛思卡爾半導(dǎo)體(中國(guó))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(qiáng)型(SBC)的高速CAN收發(fā)器
文件頁(yè)數(shù): 54/65頁(yè)
文件大?。?/td> 1158K
代理商: MCZ33742EG
Analog Integrated Circuit Device Data
Freescale Semiconductor
54
33742
TYPICAL APPLICATIONS
Figure 33. Power up sequence, No W/D write at first
POWER UP AND VDD GOING LOW WITH STOP MODE AS DEFAULT LOW POWER MODE IS SELECTED
The first part of Figure 34 is identical to Figure 33. If VDD is pulled below VDD undervoltage reset (typ 4.6 V), say by an
overcurrent or short circuit (for instance, short to 4.0 V), and if a low power mode previously selected was Stop mode, the 33742
enters Reset mode (
RST
pin is active). The
WDOG
pin stays HIGH, but the high level (Voh) follows V1 level. The
INT
pin goes
LOW.
When the VDD overload condition is removed, the 33742 restarts in Normal Request mode.
Figure 34. Undervoltage on VDD
VDD
SPI
(CS)
INT
WD
RST
Missing watchdog refresh
mode
& reset modes
mode
modes
Watchdog refresh
Reset each 350 ms
350 ms
refresh
SBC in
RESET
SBC in Normal request
SBC in Normal
SBC in Normal
request & reset
Watchdog
& reset modes
mode
mode
Watchdog refresh
Reset each 350 ms
350 ms
VDD
mode
(VDD < V
RSTTH
)
SPI
(CS)
INT
WD
RST
SBC in Normal request
SBC in Normal
SBC in Reset
SBC in
RESET
Under voltage at VDD
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