ATMEGA645A-MUR Atmel, ATMEGA645A-MUR Datasheet - Page 252

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

Specifications of ATMEGA645A-MUR

• 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 Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

252
ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/645
corresponds to FF1, and PXn. Pull-up_enable corresponds to FF2. Bit 4, 5, 6, and 7of Port F is
not in the scan chain, since these pins constitute the TAP pins when the JTAG is enabled.
Table 24-5.
Bit Number
197
196
195
194
193
192
191
190
189
188
187
186
185
184
183
182
181
180
179
178
177
176
175
174
173
172
171
170
169
ATmega169A/169PA/329A/329PA/649A/649P Boundary-scan Order, 64-pin
Signal Name
AC_IDLE
ACO
ACME
AINBG
COMP
ACLK
ACTEN
PRIVATE_SIGNAL1
ADCBGEN
ADCEN
AMPEN
DAC_9
DAC_8
DAC_7
DAC_6
DAC_5
DAC_4
DAC_3
DAC_2
DAC_1
DAC_0
EXTCH
GNDEN
HOLD
IREFEN
MUXEN_7
MUXEN_6
MUXEN_5
MUXEN_4
(1)
Module
Comparator
ADC
8285B–AVR–03/11