ATMEGA645A-AU Atmel, ATMEGA645A-AU Datasheet - Page 264

• Manufacturer Part Number: ATMEGA645A-AU
• Description: IC MCU AVR 64K FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA645A-AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP
• Processor Series: ATmega
• Core: AVR
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: SPI, USART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 3
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

24.7
264
Boundary-scan Description Language Files
ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/645
Table 24-6.
Notes:
Boundary-scan Description Language (BSDL) files describe Boundary-scan capable devices in
a standard format used by automated test-generation software. The order and function of bits in
the Boundary-scan Data Register are included in this description. A BSDL file for
ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/6450A/6450P is available.
Bit Number
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
1. PRIVATE_SIGNAL1 should always be scanned in as zero
ATmega3250A/3250PA/6450A/6450P Boundary-scan Order, 100-pin
Signal Name
PA1.Pull-up_Enable
PA0.Data
PA0.Control
PA0.Pull-up_Enable
PH4.Data
PH4.Control
PH4.Pull-up_Enable
PH5.Data
PH5.Control
PH5.Pull-up_Enable
PH6.Data
PH6.Control
PH6.Pull-up_Enable
PH7.Data
PH7.Control
PH7.Pull-up_Enable
PF3.Data
PF3.Control
PF3.Pull-up_Enable
PF2.Data
PF2.Control
PF2.Pull-up_Enable
PF1.Data
PF1.Control
PF1.Pull-up_Enable
PF0.Data
PF0.Control
PF0.Pull-up_Enable
Module
Port H
Port F
8285B–AVR–03/11