ATMEGA645-16MI Atmel, ATMEGA645-16MI Datasheet - Page 237
![IC AVR MCU FLASH 64K 5V 64QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
ATMEGA645-16MI
Manufacturer Part Number
ATMEGA645-16MI
Description
IC AVR MCU FLASH 64K 5V 64QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA325-16MU.pdf
(362 pages)
Specifications of ATMEGA645-16MI
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
53
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)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-MLF®, 64-QFN
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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24.7
2570M–AVR–04/11
Boundary-scan Order
Table 24-7
scan chain is selected as data path. Bit 0 is the LSB; the first bit scanned in, and the first bit
scanned out. The scan order follows the pin-out order as far as possible. Therefore, the bits of
Port A is scanned in the opposite bit order of the other ports. Exceptions from the rules are the
Scan chains for the analog circuits, which constitute the most significant bits of the scan chain
regardless of which physical pin they are connected to. In
to FF0, PXn. Control corresponds to FF1, and PXn. Pull-up_enable corresponds to FF2. Bit 4, 5,
6 and 7 of Port F is not in the scan chain, since these pins constitute the TAP pins when the
JTAG is enabled.
Table 24-7.
Bit Number
197
196
195
194
and
ATmega325/645 Boundary-scan Order, 64-pin
Signal Name
AC_IDLE
ACO
ACME
AINBG
Table 24-8
shows the Scan order between TDI and TDO when the Boundary-
ATmega325/3250/645/6450
Module
Comparator
Figure
24-3, PXn. Data corresponds
237
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