ATMEGA161-8PI Atmel, ATMEGA161-8PI Datasheet - Page 136

• Manufacturer Part Number: ATMEGA161-8PI
• Description: IC AVR MCU 16K 8MHZ IND 40-DIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA161-8PI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -
• Other names: ATMEGA1618PI

136
ATmega161(L)
Figure 83. External Memory Timing (SRWn1 = 0, SRWn0 = 0)
Figure 84. External Memory Timing (SRWn1 = 0, SRWn0 = 1)
Data/Address [7..0]
Data/Address [7..0]
Data/Address [7..0]
Data/Address [7..0]
System Clock Ø
Address [15..8]
System Clock Ø
Address [15..8]
ALE
WR
RD
ALE
WR
RD
Prev. data
Prev. data
Prev. addr.
Prev. data
Prev. data
Prev. addr.
T1
XX
XX
XX
T1
1
XX
XX
XX
Address
Address
4
2
1
T2
6
5
3a
Address
3b
Address
4
2
7
8
13
T2
6
5
10
3a
3b
Address
Data
7
8
13
Data
T3
10
16
15
Address
Data
15
16
Data
12
T3
12
9
9
T4
11
14
11
T4
14
1228D–AVR–02/07
T5
XX
XX
XX
XX
XX
XX