ATmega164P/324P/644P - Summary

8-bit Atmel Microcontroller with 16K/32K/64K Bytes
In-System Programmable Flash
ATmega164P/V-ATmega324P/V-ATmega644P/V
DATASHEET SUMMARY
Features

High-performance, Low-power Atmel® AVR® 8-bit Microcontroller

Advanced RISC Architecture
̶ 131 Powerful Instructions – Most Single-clock Cycle Execution
̶ 32 × 8 General Purpose Working Registers
̶ Fully Static Operation
̶ Up to 20 MIPS Throughput at 20 MHz
̶ On-chip 2-cycle Multiplier

High Endurance Non-volatile Memory segments
̶ 16K/32K/64K Bytes of In-System Self-programmable Flash program memory
̶ 512B/1K/2K Bytes EEPROM
̶ 1K/2K/4K Bytes Internal SRAM
̶ Write/Erase Cycles: 10,000 Flash/ 100,000 EEPROM
̶ Data retention: 20 years at 85C/100 years at 25C(1)
̶ Optional Boot Code Section with Independent Lock Bits
 In-System Programming by On-chip Boot Program
 True Read-While-Write Operation
̶ Programming Lock for Software Security

JTAG (IEEE std. 1149.1 Compliant) Interface
̶ Boundary-scan Capabilities According to the JTAG Standard
̶ Extensive On-chip Debug Support
̶ Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG
Interface

Peripheral Features
̶ Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes
̶ One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and
Capture Mode
̶ Real Time Counter with Separate Oscillator
̶ Six PWM Channels
̶ 8-channel, 10-bit ADC
 Differential mode with selectable gain at 1×, 10× or 200×
̶ Byte-oriented Two-wire Serial Interface
̶ Two Programmable Serial USART
̶ Master/Slave SPI Serial Interface
̶ Programmable Watchdog Timer with Separate On-chip Oscillator
Atmel-8011RS-AVR-ATmega164P/V-324P/V-644P/V-Datasheet_09/2015
̶
̶
On-chip Analog Comparator
Interrupt and Wake-up on Pin Change

Special Microcontroller Features
̶ Power-on Reset and Programmable Brown-out Detection
̶ Internal Calibrated RC Oscillator
̶ External and Internal Interrupt Sources
̶ Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby and Extended Standby

I/O and Packages
̶ 32 Programmable I/O Lines
̶ 40-pin PDIP, 44-lead TQFP, 44-pad VQFN/QFN/MLF (ATmega164P/324P/644P)
 44-pad DRQFN (ATmega164P)Operating
̶
̶
Note:
Voltages
1.8V - 5.5V for ATmega164P/324P/644PV
2.7V - 5.5V for ATmega164P/324P/644P

Speed Grades
̶ ATmega164P/324P/644PV: 0 - 4 MHz @ 1.8V - 5.5V, 0 - 10 MHz @ 2.7V - 5.5V
̶ ATmega164P/324P/644P: 0 - 10 MHz @ 2.7V - 5.5V, 0 - 20 MHz @ 4.5V - 5.5V

Power Consumption at 1 MHz, 1.8V, 25°C for ATmega164P/324P/644PV
̶ Active: 0.4 mA
̶ Power-down Mode: 0.1 µA
̶ Power-save Mode: 0.6 µA (Including 32 kHz RTC)
1. See ”Data Retention” on page 8.
ATmega164P/V-324P/V-644P/V [DATASHEET]
Atmel-8011RS-AVR--09/2015
2
1.
Pin Configurations
1.1
Pinout - PDIP/TQFP/VQFN/QFN/MLF
Figure 1-1.
Pinout ATmega164P/324P/644P
PDIP
(PCINT8/XCK0/T0) PB0
(PCINT9/CLKO/T1) PB1
(PCINT10/INT2/AIN0) PB2
(PCINT11/OC0A/AIN1) PB3
(PCINT12/OC0B/SS) PB4
(PCINT13/MOSI) PB5
(PCINT14/MISO) PB6
(PCINT15/SCK) PB7
RESET
VCC
GND
XTAL2
XTAL1
(PCINT24/RXD0) PD0
(PCINT25/TXD0) PD1
(PCINT26/RXD1/INT0) PD2
(PCINT27/TXD1/INT1) PD3
(PCINT28/XCK1/OC1B) PD4
(PCINT29/OC1A) PD5
(PCINT30/OC2B/ICP) PD6
PA0 (ADC0/PCINT0)
PA1 (ADC1/PCINT1)
PA2 (ADC2/PCINT2)
PA3 (ADC3/PCINT3)
PA4 (ADC4/PCINT4)
PA5 (ADC5/PCINT5)
PA6 (ADC6/PCINT6)
PA7 (ADC7/PCINT7)
AREF
GND
AVCC
PC7 (TOSC2/PCINT23)
PC6 (TOSC1/PCINT22)
PC5 (TDI/PCINT21)
PC4 (TDO/PCINT20)
PC3 (TMS/PCINT19)
PC2 (TCK/PCINT18)
PC1 (SDA/PCINT17)
PC0 (SCL/PCINT16)
PD7 (OC2A/PCINT31)
PB4 (SS/OC0B/PCINT12)
PB3 (AIN1/OC0A/PCINT11)
PB2 (AIN0/INT2/PCINT10)
PB1 (T1/CLKO/PCINT9)
PB0 (XCK0/T0/PCINT8)
GND
VCC
PA0 (ADC0/PCINT0)
PA1 (ADC1/PCINT1)
PA2 (ADC2/PCINT2)
PA3 (ADC3/PCINT3)
TQFP/VQFN/QFN/MLF
(PCINT13/MOSI) PB5
(PCINT14/MISO) PB6
(PCINT15/SCK) PB7
RESET
VCC
GND
XTAL2
XTAL1
(PCINT24/RXD0) PD0
(PCINT25/TXD0) PD1
(PCINT26/RXD1/INT0) PD2
(PCINT27/TXD1/INT1)
(PCINT28/XCK1/OC1B)
(PCINT29/OC1A)
(PCINT30/OC2B/ICP)
(PCINT31/OC2A)
PD3
PD4
PD5
PD6
PD7
VCC
GND
(PCINT16/SCL) PC0
(PCINT17/SDA) PC1
(PCINT18/TCK) PC2
(PCINT19/TMS) PC3
PA4 (ADC4/PCINT4)
PA5 (ADC5/PCINT5)
PA6 (ADC6/PCINT6)
PA7 (ADC7/PCINT7)
AREF
GND
AVCC
PC7 (TOSC2/PCINT23)
PC6 (TOSC1/PCINT22)
PC5 (TDI/PCINT21)
PC4 (TDO/PCINT20)
Note:
The large center pad underneath the VQFN/QFN/MLF package should be soldered to ground on the board to
ensure good mechanical stability.
ATmega164P/V-324P/V-644P/V [DATASHEET]
Atmel-8011RS-AVR--09/2015
3
2.
Overview
The ATmega164P/324P/644P is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC
architecture. By executing powerful instructions in a single clock cycle, the ATmega164P/324P/644P achieves
throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus
processing speed.
2.1
Block Diagram
Figure 2-1.
Block Diagram
PA7..0
PB7..0
VCC
RESET
GND
Power
Supervision
POR / BOD &
RESET
PORT A (8)
PORT B (8)
Watchdog
Timer
Analog
Comparator
A/D
Converter
Watchdog
Oscillator
USART 0
XTAL1
Oscillator
Circuits /
Clock
Generation
EEPROM
Internal
Bandgap reference
SPI
XTAL2
8 bit T/C 0
CPU
JTAG/OCD
TWI
PORT C (8)
TOSC2/PC7
TOSC1/PC6
PC5..0
16 bit T/C 1
FLASH
SRAM
8 bit T/C 2
USART 1
PORT D (8)
PD7..0
The AVR core combines a rich instruction set with 32 general purpose working registers. All the 32 registers are
directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one
single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving
throughputs up to ten times faster than conventional CISC microcontrollers.
The ATmega164P/324P/644P provides the following features: 16K/32K/64K bytes of In-System Programmable
Flash with Read-While-Write capabilities, 512B/1K/2K bytes EEPROM, 1K/2K/4K bytes SRAM, 32 general
ATmega164P/V-324P/V-644P/V [DATASHEET]
Atmel-8011RS-AVR--09/2015
4
purpose I/O lines, 32 general purpose working registers, Real Time Counter (RTC), three flexible
Timer/Counters with compare modes and PWM, 2 USARTs, a byte oriented 2-wire Serial Interface, a 8channel, 10-bit ADC with optional differential input stage with programmable gain, programmable Watchdog
Timer with Internal Oscillator, an SPI serial port, IEEE std. 1149.1 compliant JTAG test interface, also used for
accessing the On-chip Debug system and programming and six software selectable power saving modes. The
Idle mode stops the CPU while allowing the SRAM, Timer/Counters, SPI port, and interrupt system to continue
functioning. The Power-down mode saves the register contents but freezes the Oscillator, disabling all other
chip functions until the next interrupt or Hardware Reset. In Power-save mode, the asynchronous timer
continues to run, allowing the user to maintain a timer base while the rest of the device is sleeping. The ADC
Noise Reduction mode stops the CPU and all I/O modules except Asynchronous Timer and ADC, to minimize
switching noise during ADC conversions. In Standby mode, the Crystal/Resonator Oscillator is running while the
rest of the device is sleeping. This allows very fast start-up combined with low power consumption. In Extended
Standby mode, both the main Oscillator and the Asynchronous Timer continue to run.
The device is manufactured using Atmel’s high-density nonvolatile memory technology. The On-chip ISP Flash
allows the program memory to be reprogrammed in-system through an SPI serial interface, by a conventional
nonvolatile memory programmer, or by an On-chip Boot program running on the AVR core. The boot program
can use any interface to download the application program in the application Flash memory. Software in the
Boot Flash section will continue to run while the Application Flash section is updated, providing true ReadWhile-Write operation. By combining an 8-bit RISC CPU with In-System Self-Programmable Flash on a
monolithic chip, the Atmel ATmega164P/324P/644P is a powerful microcontroller that provides a highly flexible
and cost effective solution to many embedded control applications.
The ATmega164P/324P/644P AVR is supported with a full suite of program and system development tools
including: C compilers, macro assemblers, program debugger/simulators, in-circuit emulators, and evaluation
kits.
2.2
Comparison Between ATmega164P, ATmega324P and ATmega644P
Table 2-1.
Differences between ATmega164P and ATmega644P
Device
Flash
EEPROM
RAM
ATmega164P
16 Kbyte
512 Bytes
1 Kbyte
ATmega324P
32 Kbyte
1 Kbyte
2 Kbyte
ATmega644P
64 Kbyte
2 Kbyte
4 Kbyte
ATmega164P/V-324P/V-644P/V [DATASHEET]
Atmel-8011RS-AVR--09/2015
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2.3
Pin Descriptions
2.3.1
VCC
Digital supply voltage.
2.3.2
GND
Ground.
2.3.3
Port A (PA7:PA0)
Port A serves as analog inputs to the Analog-to-digital Converter.
Port A also serves as an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port A output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs,
Port A pins that are externally pulled low will source current if the pull-up resistors are activated. The Port A pins
are tri-stated when a reset condition becomes active, even if the clock is not running.
Port A also serves the functions of various special features of the ATmega164P/324P/644P as listed on page
80.
2.3.4
Port B (PB7:PB0)
Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port B output
buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port B pins
that are externally pulled low will source current if the pull-up resistors are activated. The Port B pins are tristated when a reset condition becomes active, even if the clock is not running.
Port B also serves the functions of various special features of the ATmega164P/324P/644P as listed on page
81.
2.3.5
Port C (PC7:PC0)
Port C is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port C output
buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port C pins
that are externally pulled low will source current if the pull-up resistors are activated. The Port C pins are tristated when a reset condition becomes active, even if the clock is not running.
Port C also serves the functions of the JTAG interface, along with special features of the
ATmega164P/324P/644P as listed on page 84.
2.3.6
Port D (PD7:PD0)
Port D is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port D output
buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port D pins
that are externally pulled low will source current if the pull-up resistors are activated. The Port D pins are tristated when a reset condition becomes active, even if the clock is not running.
Port D also serves the functions of various special features of the ATmega164P/324P/644P as listed on page
87.
2.3.7
RESET
Reset input. A low level on this pin for longer than the minimum pulse length will generate a reset, even if the
clock is not running. The minimum pulse length is given in ”System and Reset Characteristics” on page 323.
Shorter pulses are not guaranteed to generate a reset.
ATmega164P/V-324P/V-644P/V [DATASHEET]
Atmel-8011RS-AVR--09/2015
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2.3.8
XTAL1
Input to the inverting Oscillator amplifier and input to the internal clock operating circuit.
2.3.9
XTAL2
Output from the inverting Oscillator amplifier.
2.3.10 AVCC
AVCC is the supply voltage pin for Port A and the Analog-to-digital Converter. It should be externally connected
to VCC, even if the ADC is not used. If the ADC is used, it should be connected to VCC through a low-pass filter.
2.3.11 AREF
This is the analog reference pin for the Analog-to-digital Converter.
ATmega164P/V-324P/V-644P/V [DATASHEET]
Atmel-8011RS-AVR--09/2015
7
3.
Ordering Information
3.1
ATmega164P
Speed (MHz)(4)
Ordering Code(2)
Package(1)
1.8V - 5.5V
ATmega164PV-10AU
ATmega164PV-10AUR(3)
ATmega164PV-10PU
ATmega164PV-10MU
ATmega164PV-10MUR(3)
44A
44A
40P6
44M1
44M1
20
2.7V - 5.5V
ATmega164P-20AU
ATmega164P-20AUR(3)
ATmega164P-20PU
ATmega164P-20MU
ATmega164P-20MUR(3)
44A
44A
40P6
44M1
44M1
10
1.8 - 5.5V
ATmega164PV-10AN
ATmega164PV-10ANR(3)
ATmega164PV-10PN
44A
44A
40P6
2.7 - 5.5V
ATmega164P-20AN
ATmega164P-20ANR(3)
ATmega164P-20PN
ATmega164P-20MN
ATmega164P-20MNR(3)
44A
44A
40P6
44M1
44M1
10
20
Notes:
Power Supply
Operational Range
Industrial
(-40oC to 85oC)
Extended
(-40oC to 105oC)(5)
1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering
information and minimum quantities.
2. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also
Halide free and fully Green.
3. Tape & Reel.
4. For Speed vs. VCC see ”Speed Grades” on page 321.
5. See characterization specifications at 105oC
Package Type
44A
44-lead, Thin (1.0mm) Plastic Gull Wing Quad Flat Package (TQFP)
40P6
40-pin, 0.600” Wide, Plastic Dual Inline Package (PDIP)
44M1
44-pad, 7 × 7 × 1.0mm body, lead pitch 0.50mm, Thermally Enhanced Plastic Very Thin Quad Flat No-Lead (VQFN)
ATmega164P/V-324P/V-644P/V [DATASHEET]
Atmel-8011RS-AVR--09/2015
8
3.2
ATmega324P
Speed (MHz)(4)
10
20
10
20
Notes:
Ordering Code(2)
Package(1)
ATmega324PV-10AU
ATmega324PV-10AUR(3)
ATmega324PV-10PU
ATmega324PV-10MU
ATmega324PV-10MUR(3)
44A
44A
40P6
44M1
44M1
ATmega324P-20AU
ATmega324P-20AUR(3)
ATmega324P-20PU
ATmega324P-20MU
ATmega324P-20MUR(3)
44A
44A
40P6
44M1
44M1
1.8 - 5.5V
ATmega324PV-10AN
ATmega324PV-10ANR(3)
ATmega324PV-10PN
ATmega324PV-10MN
ATmega324PV-10MNR(3)
44A
44A
40P6
44M1
44M1
2.7 - 5.5V
ATmega324P-20AN
ATmega324P-20ANR(3)
ATmega324P-20PN
ATmega324P-20MN
ATmega324P-20MNR(3)
44A
44A
40P6
44M1
44M1
Power Supply
1.8V - 5.5V
2.7V - 5.5V
Operational Range
Industrial
(-40oC to 85oC)
Extended
(-40oC to 105oC)(5)
1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering
information and minimum quantities.
2. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also
Halide free and fully Green.
3. Tape & Reel.
4. For Speed vs. VCC see ”Speed Grades” on page 321.
5. See characterization specifications at 105oC
Package Type
44A
44-lead, Thin (1.0mm) Plastic Gull Wing Quad Flat Package (TQFP)
40P6
40-pin, 0.600” Wide, Plastic Dual Inline Package (PDIP)
44M1
44-pad, 7 × 7 × 1.0mm Body, lead pitch 0.50 mm, Thermally Enhanced Plastic Very Thin Quad Flat No-Lead (VQFN)
ATmega164P/V-324P/V-644P/V [DATASHEET]
Atmel-8011RS-AVR--09/2015
9
3.3
ATmega644P
Speed (MHz)(4)
10
20
10
20
Notes:
Ordering Code(2)
Package(1)
ATmega644PV-10AU
ATmega644PV-10AUR(3)
ATmega644PV-10PU
ATmega644PV-10MU
ATmega644PV-10MUR(3)
44A
44A
40P6
44M1
44M1
ATmega644P-20AU
ATmega644P-20AUR(3)
ATmega644P-20PU
ATmega644P-20MU
ATmega644P-20MUR(3)
44A
44A
40P6
44M1
44M1
1.8 - 5.5V
ATmega644PV-10AN
ATmega644PV-10ANR(3)
ATmega644PV-10PN
ATmega644PV-10MN
ATmega644PV-10MNR(3)
44A
44A
40P6
44M1
44M1
2.7 - 5.5V
ATmega644P-20AN
ATmega644P-20ANR(3)
ATmega644P-20PN
ATmega644P-20MN
ATmega644P-20MNR(3)
44A
44A
40P6
44M1
44M1
Power Supply
1.8V - 5.5V
2.7V - 5.5V
Operational Range
Industrial
(-40oC to 85oC)
Extended
(-40oC to 105oC)(5)
1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering
information and minimum quantities.
2. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also
Halide free and fully Green.
3. Tape & Reel.
4. For Speed vs. VCC see ”Speed Grades” on page 321.
5. See characterization specifications at 105oC
Package Type
44A
44-lead, Thin (1.0mm) Plastic Gull Wing Quad Flat Package (TQFP)
40P6
40-pin, 0.600” Wide, Plastic Dual Inline Package (PDIP)
44M1
44-pad, 7 × 7 × 1.0mm body, lead pitch 0.50 mm, Thermally Enhanced Plastic Very Thin Quad Flat No-Lead (VQFN)
ATmega164P/V-324P/V-644P/V [DATASHEET]
Atmel-8011RS-AVR--09/2015
10
4.
Packaging Information
4.1
44A
PIN 1 IDENTIFIER
PIN 1
e
B
E1
E
D1
D
C
0°~7°
A1
A2
A
L
COMMON DIMENSIONS
(Unit of Measure = mm)
Notes:
1. This package conforms to JEDEC reference MS-026, Variation ACB.
2. Dimensions D1 and E1 do not include mold protrusion. Allowable
protrusion is 0.25mm per side. Dimensions D1 and E1 are maximum
plastic body size dimensions including mold mismatch.
3. Lead coplanarity is 0.10mm maximum.
SYMBOL
MIN
NOM
MAX
A
–
–
1.20
A1
0.05
–
0.15
A2
0.95
1.00
1.05
D
11.75
12.00
12.25
D1
9.90
10.00
10.10
E
11.75
12.00
12.25
E1
9.90
10.00
10.10
B
0.30
0.37
0.45
C
0.09
(0.17)
0.20
L
0.45
0.60
0.75
e
NOTE
Note 2
Note 2
0.80 TYP
06/02/2014
44A, 44-lead, 10 x 10mm body size, 1.0mm body thickness,
0.8 mm lead pitch, thin profile plastic quad flat package (TQFP)
44A
ATmega164P/V-324P/V-644P/V [DATASHEET]
Atmel-8011RS-AVR--09/2015
C
11
4.2
40P6
D
PIN
1
E1
A
SEATING PLANE
A1
L
B
B1
e
E
0º ~ 15º
C
COMMON DIMENSIONS
(Unit of Measure = mm)
REF
eB
SYMBOL
MIN
NOM
MAX
A
–
–
4.826
A1
0.381
–
–
D
52.070
–
52.578
E
15.240
–
15.875
E1
13.462
–
13.970
0.356
–
0.559
B
Notes:
1. This package conforms to JEDEC reference MS-011, Variation AC.
2. Dimensions D and E1 do not include mold Flash or Protrusion.
Mold Flash or Protrusion shall not exceed 0.25mm (0.010").
B1
1.041
–
1.651
L
3.048
–
3.556
C
0.203
–
0.381
eB
15.494
–
17.526
e
NOTE
Note 2
Note 2
2.540 TYP
13/02/2014
40P6, 40-lead (0.600"/15.24mm Wide) Plastic Dual
Inline Package (PDIP)
40P6
ATmega164P/V-324P/V-644P/V [DATASHEET]
Atmel-8011RS-AVR--09/2015
C
12
44M1
D
Marked Pin# 1 I D
E
SE ATING PLAN E
A1
TOP VIE W
A3
A
K
L
Pin #1 Co rner
D2
1
2
3
SIDE VIEW
Pin #1
Triangle
Option A
E2
Option B
K
Option C
b
e
Pin #1
Cham fer
(C 0.30)
Pin #1
Notch
(0.20 R)
B OT TOM VIE W
COMMON DIMENSIONS
(Unit of Measure = mm)
SYMBOL
MIN
NOM
MAX
A
0.80
0.90
1.00
A1
–
0.02
0.05
A3
0.20 REF
b
0.18
0.23
0.30
D
6.90
7.00
7.10
D2
5.00
5.20
5.40
E
6.90
7.00
7.10
E2
5.00
5.20
5.40
e
Note: JEDEC Standard MO-220, Fig
. 1 (S AW Singulation) VKKD-3 .
NOT E
0.50 BSC
L
0.59
0.64
0.69
K
0.20
0.26
0.41
02/13/2014
Package Drawing Contact:
[email protected]
TITLE
44M1, 44-pad, 7 x 7 x 1.0mm body, lead
pitch 0.50mm, 5.20mm exposed pad, thermally
enhanced plastic very thin quad flat no
lead package (VQFN)
GPC
DRAWING NO.
ZWS
44M1
ATmega164P/V-324P/V-644P/V [DATASHEET]
Atmel-8011RS-AVR--09/2015
REV.
H
13
5.
Errata
5.1
ATmega164P
5.1.1
Rev. A
No known Errata.
5.2
ATmega324P
5.2.1
Rev. A
No known Errata.
5.3
ATmega644P
5.3.1
Rev. A
Not sampled.
5.3.2
Rev. B
No known Errata.
5.3.3
Rev. C
Reserved.
5.3.4
Rev. D
No known errata.
5.3.5
Rev. E
Reserved.
5.3.6
Rev. F
Revision letter used for ATmega644PA.
5.3.7
Rev. G
No known errata.
5.3.8
Rev. H
Based upon revision G. No known errata. Added for uninterrupted production supply, refer to PCN WC112604.
ATmega164P/V-324P/V-644P/V [DATASHEET]
Atmel-8011RS-AVR--09/2015
14
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