ATMEGA645A-AU Atmel, ATMEGA645A-AU Datasheet - Page 261

• 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

8285B–AVR–03/11
ATmega165A/165PA/325A/325PA/3250A/3250PA/6
Table 24-6.
Bit Number
135
134
133
132
131
130
129
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
104
103
102
101
100
ATmega3250A/3250PA/6450A/6450P Boundary-scan Order, 100-pin
Signal Name
EXTCLK (XTAL1)
OSCCK
RCCK
OSC32CK
PJ2.Data
PJ2.Control
PJ2.Pull-up_Enable
PJ3.Data
PJ3.Control
PJ3.Pull-up_Enable
PJ4.Data
PJ4.Control
PJ4.Pull-up_Enable
PJ5.Data
PJ5.Control
PJ5.Pull-up_Enable
PJ6.Data
PJ6.Control
PJ6.Pull-up_Enable
PD0.Data
PD0.Control
PD0.Pull-up_Enable
PD1.Data
PD1.Control
PD1.Pull-up_Enable
PD2.Data
PD2.Control
PD2.Pull-up_Enable
PD3.Data
PD3.Control
PD3.Pull-up_Enable
PD4.Data
PD4.Control
PD4.Pull-up_Enable
PD5.Data
PD5.Control
Module
Clock input and Oscillators for the main clock
(Observe-only)
Port J
Port D
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