Data Sheet
Table Of Contents
- 1.0 Device Overview
- 2.0 Can Message Frames
- 3.0 Message Transmission
- 4.0 Message Reception
- 5.0 Bit Timing
- 6.0 Error Detection
- 7.0 Interrupts
- 8.0 Oscillator
- 9.0 RESET
- 10.0 Modes of Operation
- 11.0 Register Map
- 12.0 SPI™ Interface
- 12.1 Overview
- 12.2 Reset Instruction
- 12.3 Read Instruction
- 12.4 Read RX Buffer Instruction
- 12.5 Write Instruction
- 12.6 Load TX Buffer Instruction
- 12.7 Request-To-Send (RTS) Instruction
- 12.8 Read Status Instruction
- 12.9 RX Status Instruction
- 12.10 Bit Modify Instruction
- Figure 12-1: Bit Modify
- Table 12-1: SPI™ Instruction Set
- Figure 12-2: Read instruction
- Figure 12-3: Read RX Buffer Instruction
- Figure 12-4: Byte Write instruction
- Figure 12-5: Load TX Buffer
- Figure 12-6: Request-to-send (RTS) instruction
- Figure 12-7: BIT Modify instruction
- Figure 12-8: Read Status instruction
- Figure 12-9: RX StatUs Instruction
- Figure 12-10: SPI™ Input Timing
- Figure 12-11: SPI™ Output TIming
- 13.0 Electrical Characteristics
- 14.0 PackAging Information

© 2005 Microchip Technology Inc. Preliminary DS21801D-page 71
MCP2515
TABLE 13-2: OSCILLATOR TIMING CHARACTERISTICS
TABLE 13-3: CAN INTERFACE AC CHARACTERISTICS
TABLE 13-4: RESET AC CHARACTERISTICS
Oscillator Timing Characteristics
(Note)
Industrial (I): TAMB = -40°C to +85°C VDD = 2.7V to 5.5V
Extended (E): T
AMB = -40°C to +125°C VDD = 4.5V to 5.5V
Param.
No.
Sym Characteristic Min Max Units Conditions
F
OSC Clock-In Frequency 1
1
40
25
MHz
MHz
4.5V to 5.5V
2.7V to 5.5V
T
OSC Clock-In Period 25
40
1000
1000
ns
ns
4.5V to 5.5V
2.7V to 5.5V
T
DUTY Duty Cycle
(External Clock Input)
0.45 0.55 — TOSH/(TOSH + TOSL)
Note: This parameter is periodically sampled and not 100% tested.
CAN Interface AC Characteristics
Industrial (I): T
AMB = -40°C to +85°C VDD = 2.7V to 5.5V
Extended (E): T
AMB = -40°C to +125°C VDD = 4.5V to 5.5V
Param.
No.
Sym Characteristic Min Max Units Conditions
T
WF
Wake-up Noise Filter 100 — ns
RESET AC Characteristics
Industrial (I): T
AMB = -40°C to +85°C VDD = 2.7V to 5.5V
Extended (E): T
AMB = -40°C to +125°C VDD = 4.5V to 5.5V
Param.
No.
Sym Characteristic Min Max Units Conditions
trl
RESET Pin Low Time 2 — µs