AT90PWM81-16MF Atmel, AT90PWM81-16MF Datasheet - Page 273

• Manufacturer Part Number: AT90PWM81-16MF
• Description: IC MCU AVR 8K FLASH ISP 32QFN
• Manufacturer: Atmel
• Series: AVR® 90PWM Lightingr

Specifications of AT90PWM81-16MF

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI
• Peripherals: Brown-out Detect/Reset, PWM, WDT
• Number Of I /o: 20
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 32-MLF®, QFN
• For Use With: ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

22.6
7734P–AVR–08/10
SPI Timing Characteristics
See
Table 22-5.
Note:
Figure 22-3.
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
Figure 22-3
In SPI Programming mode the minimum SCK high/low period is:
- 2 t
- 3 t
(Data Output)
(Data Input)
(CPOL = 0)
(CPOL = 1)
CLCL
CLCL
SS high to tri-state
SCK high/low
SCK to out high
SCK to SS high
SS low to SCK
SCK high/low
Rise/Fall time
Rise/Fall time
SPI Timing Parameters
SPI Interface Timing Requirements (Master Mode)
SS low to out
and
MISO
MOSI
Description
SCK period
Out to SCK
SCK period
for f
for f
SCK to out
SCK to out
SCK
SCK
SS
Setup
Setup
Hold
Hold
Figure 22-4
CK
CK
< 12 MHz
>12 MHz
(1)
6
4
for details.
MSB
5
MSB
Master
Master
Master
Master
Master
Master
Master
Master
Mode
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
7
4 • t
2 • t
2 • t
Min.
10
t
20
ck
...
ck
ck
ck
...
50% duty cycle
See
0.5 • t
Table 14-5
Typ.
3.6
10
10
10
10
15
15
10
2
sck
AT90PWM81
LSB
1
LSB
2
Max.
1.6
3
8
ns
273