AT90CAN128-16AI Atmel, AT90CAN128-16AI Datasheet - Page 370

• Manufacturer Part Number: AT90CAN128-16AI
• Description: IC MCU AVR FLASH 128K 64TQFP
• Manufacturer: Atmel
• Series: AVR® 90CANr

Specifications of AT90CAN128-16AI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: CAN, EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• For Use With: ATDVK90CAN1 - KIT DEV FOR AT90CAN128 MCU
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 26-3. Two-wire Serial Bus Timing
26.6
370
2. Required only for f
3. C
4. f
5. This requirement applies to all AT90CAN32/64/128 Two-wire Serial Interface operation. Other devices connected to the
6. The actual low period generated by the AT90CAN32/64/128 Two-wire Serial Interface is (1/f
7. The actual low period generated by the AT90CAN32/64/128 Two-wire Serial Interface is (1/f
SPI Timing Characteristics
AT90CAN32/64/128
SCL
SDA
Two-wire Serial Bus need only obey the general f
greater than 6 MHz for the low time requirement to be strictly met at f
requirement will not be strictly met for f
bus may communicate at full speed (400 kHz) with other AT90CAN32/64/128 devices, as well as any other device with a
proper t
CK
b
= capacitance of one bus line in pF.
= CPU clock frequency
t
SU;STA
LOW
acceptance margin.
See
Table 26-4.
SCL
10
11
12
1
2
3
4
5
6
7
8
9
Figure 26-4
> 100 kHz.
t
HD;STA
t
t
of
SCK to out high
SCK high/low
LOW
Rise/Fall time
Rise/Fall time
SCK high/low
SS low to out
SPI Timing Parameters
Description
SCK period
SCK period
Out to SCK
SCK to out
and
Setup
Hold
SCL
Figure 26-5
> 308 kHz when f
t
HIGH
t
(1)
HD;DAT
SCL
requirement.
for details.
t
LOW
Master
Master
Master
Master
Master
Master
Master
Master
Mode
Slave
Slave
Slave
Slave
CK
= 8 MHz. Still, AT90CAN32/64/128 devices connected to the
t
SU;DAT
SCL
4 • t
2 • t
Min.
= 100 kHz.
ck
ck
See
50% duty cycle
0.5 • t
Table 16-4
t
Typ.
SU;STO
3.6
SCL
SCL
10
10
10
10
15
sck
t
r
- 2/f
- 2/f
CK
CK
), thus f
), thus the low time
t
BUF
Max.
7679H–CAN–08/08
CK
1.6
must be
ns
µs