ATMEGA8515-16AI Atmel, ATMEGA8515-16AI Datasheet - Page 206

• Manufacturer Part Number: ATMEGA8515-16AI
• Description: IC AVR MCU 8K 16MHZ IND 44-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8515-16AI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -

206
ATmega8515(L)
Figure 91. External Memory Timing (SRWn1 = 1, SRWn0 = 0)
Figure 92. External Memory Timing (SRWn1 = 1, SRWn0 = 1)
Note:
System Clock (CLK
System Clock (CLK
DA7:0 (XMBK = 0)
DA7:0 (XMBK = 0)
1. The ALE pulse in the last period (T4-T7) is only present if the next instruction
DA7:0
A15:8
CPU
ALE
DA7:0
WR
A15:8
RD
CPU
ALE
accesses the RAM (internal or external).
WR
RD
)
)
Prev. Addr.
Prev. Data
Prev. Addr.
Prev. Data
T1
T1
1
Address
Address
4
2
1
5
T2
6
Address
Address
3a
3b
4
2
XX
7
5
8
T2
6
13
3a
3b
XX
10
7
8
13
T3
10
T3
Data
Address
12
Data
16
15
T4
9
Data
Address
12
Data
16
15
9
T4
T5
11
(1)
T5
T6
11
14
2512K–AVR–01/10
T6
14
T7