參數(shù)資料
型號: MCZ33742SEGR2
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): 55/65頁
文件大小: 1158K
代理商: MCZ33742SEGR2
Analog Integrated Circuit Device Data
Freescale Semiconductor
55
33742
TYPICAL APPLICATIONS
POWER-UP AND VDD GOING LOW WITH SLEEP MODE AS DEFAULT LOW POWER MODE IS SELECTED
The first part of Figure 35 is identical to Figure 34. If VDD is pulled below the VDD under voltage reset (typ 4.6V), say by an
overcurrent or short circuit (for instance, short to 4.0 V), and if the low power mode previously selected was Sleep mode and if
the BATFAIL flag has been cleared, the 33742 enters in Reset mode for a time period of 100 ms. The WDOG pin stays HIGH,
but the high level (Voh) follows VDD level. The RST and INT pins are low. After 100 ms the 33742 goes into Sleep mode, and
the VDD and V2 are off.
Figure 35 shows an example wherein VDD is shorted to 4.0 V, and after 100 ms the 33742 enters Sleep mode.
.
Figure 35. Undervoltage at VDD. Sleep mode selected.
Figure 36. CAN Bus Standard Termination
Figure 37. CAN Bus Split Termination
Sleep mode
SBC in Sleep mode
100 ms
& reset modes
mode
Reset each 350 ms
VDD
mode
Watchdog refresh
Under voltage at VDD
SPI
(CS)
INT
WD
RST
SBC in Reset mode for
100ms, then enter
SBC in Normal request
SBC in Normal
SBC in
RESET
R5
CL
CANL (33742)
CH
CANH (33742)
CAN Connector
CANL
CANH
Legend
R5: 60
CL, CH: 220 pF
R6
CL
CANL (33742)
CH
CANH (33742)
CAN Connector
R7
CS
CANH
CANL
Legend
R6, R7: 30
CL, CH: 220 pF
CS: > 470 pF
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