參數(shù)資料
型號: MC68HC58DW
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 1 CHANNEL(S), LOCAL AREA NETWORK CONTROLLER, PDSO28
封裝: SOIC-28
文件頁數(shù): 28/102頁
文件大?。?/td> 700K
代理商: MC68HC58DW
MC68HC58
SIGNAL AND PIN DESCRIPTIONS
MOTOROLA
TECHNICAL DATA
2-15
2.5.2 Method 2 — Switching V
DD With PSEN
With V
BATT and VCC applied, the PSEN pin goes to a high-impedance state when the
DLC is in standby mode and sources 12 Vdc when the DLC detects J1850 bus activity.
Refer to 2.6 Reset for more information on supply stabilization. Figure 2-5 shows
BUS, INT, RST, and PSEN timing relationships. Refer to APPENDIX A ELECTRICAL
CHARACTERISTICS for more information on parameter specifications.
Figure 2-5 Method 2 — Switching VDD with PSEN
12V
0V
5V
0V
ACTIVE
PASSIVE
tACDLY —
5V
0V
12V
0V
STANDBY
NORMAL
STANDBY
VBATT
VCC
RST
BUS
INT
PSEN
DLC MODE
DLC PMC2
VDD
5V
0V
STANDBY
HIGH IMPEDANCE
RESET
STANDBY
RESET
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