参数资料
型号: MCP2515-E/ST
厂商: Microchip Technology
文件页数: 51/88页
文件大小: 0K
描述: IC CAN CONTROLLER W/SPI 20TSSOP
标准包装: 74
控制器类型: CAN 接口
接口: SPI 串行
电源电压: 2.7 V ~ 5.5 V
电流 - 电源: 10mA
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-TSSOP
包装: 管件
配用: MCP2515DM-BM-ND - BOARD DEMO FOR MCP2515/51
MCP2515DM-PTPLS-ND - BOARD DAUGHTER PICTAIL MCP2515
MCP2515DM-PCTL-ND - BOARD DEMO FOR MCP2515
DV251001-ND - KIT DEVELOPMENT CAN MCP2510
2010 Microchip Technology Inc.
DS21801F-page 55
MCP2515
9.0
RESET
The MCP2515 differentiates between two resets:
1.
Hardware Reset – Low on RESET pin
2.
SPI Reset – Reset via SPI command
Both of these resets are functionally equivalent. It is
important to provide one of these two resets after
power-up to ensure that the logic and registers are in
their default state. A hardware reset can be achieved
automatically by placing an RC on the RESET pin (see
Figure 9-1). The values must be such that the device is
held in reset for a minimum of 2 s after VDD reaches
operating voltage, as indicated in the electrical
specification (tRL).
FIGURE 9-1:
RESET PIN CONFIGURATION EXAMPLE
RESET
R1(2)
VDD
R
C
D(1)
Note 1: The diode D helps discharge the capacitor quickly when VDD powers down.
2: R1 = 1 k
Ω to 10 kΩ will limit any current flowing into RESET from external
capacitor C, in the event of RESET pin breakdown due to Electrostatic
Discharge (ESD) or Electrical Overstress (EOS).
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