ATmega8515 Atmel Corporation, ATmega8515 Datasheet - Page 200

• Manufacturer Part Number: ATmega8515
• Manufacturer: Atmel Corporation

Specifications of ATmega8515

• Flash (kbytes): 8 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 35
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 3
• Input Capture Channels: 1
• Pwm Channels: 3
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

SPI Timing
Characteristics
200
ATmega8515(L)
See Figure 87 and Figure 88 for details.
Table 97. SPI Timing Parameters
Note:
Figure 87. SPI Interface Timing Requirements (Master Mode)
(Data Output)
10
11
12
13
14
15
16
17
18
(Data Input)
(CPOL = 0)
(CPOL = 1)
1
2
3
4
5
6
7
8
9
MISO
MOSI
SCK
SCK
1. In SPI Programming mode the minimum SCK high/low period is:
SS
SS high to tri-state
SCK to out high
SCK to SS high
- 2 t
- 3 t
SCK high/low
SS low to SCK
SCK high/low
Rise/Fall time
Rise/Fall time
SS low to out
Description
SCK period
SCK period
Out to SCK
SCK to out
SCK to out
CLCL
CLCL
Setup
Setup
Hold
Hold
for f
for f
6
4
MSB
CK
CK
(1)
5
< 12 MHz
>12 MHz
MSB
Master
Master
Master
Master
Master
Master
Master
Master
Mode
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Salve
7
...
4 • t
2 • t
2 • t
Min
...
10
t
20
ck
ck
ck
ck
50% duty cycle
See Table 58
0.5 • t
2
Typ
3.6
10
10
10
10
15
15
10
SCK
LSB
1
LSB
2
2512K–AVR–01/10
Max
1.6
3
8
ns
µs
ns