ATMEGA168-24PJ datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > The embedded processor and controller> Microcontrollers and processors> ATMEGA168-24PJ

ATMEGA168-24PJ: DescriptionRISC Microcontroller, 8-Bit, FLASH, 24MHz, CMOS, PDIP28, 0.300 INCH, PLASTIC, DIP-28; CategoryThe embedded processor and controller Microcontrollers and processors; File Size5MB，349 Pages; ManufacturerAtmel (Microchip); Environmental Compliance

Download Datasheet Parametric View All

ATMEGA168-24PJ Overview

RISC Microcontroller, 8-Bit, FLASH, 24MHz, CMOS, PDIP28, 0.300 INCH, PLASTIC, DIP-28

ATMEGA168-24PJ Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Atmel (Microchip)
Parts packaging code	DIP
package instruction	DIP,
Contacts	28
Reach Compliance Code	compliant
Has ADC	YES
Other features	OPERATES AT 2.7 V MINIMUM SUPPLY @ 12 MHZ
Address bus width
bit size	8
maximum clock frequency	16 MHz
DAC channel	NO
DMA channel	NO
External data bus width
JESD-30 code	R-PDIP-T28
JESD-609 code	e3
length	34.671 mm
Humidity sensitivity level	1
Number of I/O lines	23
Number of terminals	28
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
PWM channel	YES
Package body material	PLASTIC/EPOXY
encapsulated code	DIP
Package shape	RECTANGULAR
Package form	IN-LINE
Peak Reflow Temperature (Celsius)	245
Certification status	Not Qualified
ROM programmability	FLASH
Maximum seat height	4.5724 mm
speed	24 MHz
Maximum supply voltage	5.5 V
Minimum supply voltage	4.5 V
Nominal supply voltage	5 V
surface mount	NO
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	MATTE TIN
Terminal form	THROUGH-HOLE
Terminal pitch	2.54 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	40
width	7.62 mm
uPs/uCs/peripheral integrated circuit type	MICROCONTROLLER, RISC

Preview

Download Datasheet

View All

Features

•

High Performance, Low Power AVR

8-Bit Microcontroller

•

Advanced RISC Architecture

– 131 Powerful Instructions – Most Single Clock Cycle Execution

– 32 x 8 General Purpose Working Registers

– Fully Static Operation

– Up to 24 MIPS Throughput at 24 MHz

– On-chip 2-cycle Multiplier

Non-volatile Program and Data Memories

– 4/8/16K Bytes of In-System Self-Programmable Flash (ATmega48/88/168)

Endurance: 10,000 Write/Erase Cycles

– Optional Boot Code Section with Independent Lock Bits

In-System Programming by On-chip Boot Program

True Read-While-Write Operation

– 256/512/512 Bytes EEPROM (ATmega48/88/168)

Endurance: 100,000 Write/Erase Cycles

– 512/1K/1K Byte Internal SRAM (ATmega48/88/168)

– Programming Lock for Software Security

Peripheral Features

– Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode

– 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 in TQFP and MLF package

– 6-channel 10-bit ADC in PDIP Package

– Programmable Serial USART

– Master/Slave SPI Serial Interface

– Byte-oriented 2-wire Serial Interface

– Programmable Watchdog Timer with Separate On-chip Oscillator

– On-chip Analog Comparator

– Interrupt and Wake-up on Pin Change

Special Microcontroller Features

– Power-on Reset and Programmable Brown-out Detection

– Internal Calibrated Oscillator

– External and Internal Interrupt Sources

– Five Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, and

Standby

I/O and Packages

– 23 Programmable I/O Lines

– 28-pin PDIP, 32-lead TQFP and 32-pad MLF

Operating Voltage:

– 1.8 - 5.5V for ATmega48V/88V/168V

– 2.7 - 5.5V for ATmega48/88/168

Temperature Range:

– -40

C to 85

Speed Grade:

– ATmega48V/88V/168V: 0 - 6 MHz @ 1.8 - 5.5V, 0 - 12 MHz @ 2.7 - 5.5V

– ATmega48/88/168: 0 - 12 MHz @ 2.7 - 5.5V, 0 - 24 MHz @ 4.5 - 5.5V

Low Power Consumption

– Active Mode:

1 MHz, 1.8V: 240µA

32 kHz, 1.8V: 15µA (including Oscillator)

– Power-down Mode:

0.1µA at 1.8V

•

8-bit

Microcontroller

with 8K Bytes

In-System

Programmable

Flash

ATmega48/V

ATmega88/V

ATmega168/V

Preliminary

•

Rev. 2545B–AVR–01/04

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 ATmega48/88/168 provides the following features: 4K/8K/16K bytes of In-System

Programmable Flash with Read-While-Write capabilities, 256/512/512 bytes EEPROM,

512/1K/1K bytes SRAM, 23 general purpose I/O lines, 32 general purpose working reg-

isters, three flexible Timer/Counters with compare modes, internal and external

interrupts, a serial programmable USART, a byte-oriented 2-wire Serial Interface, an

SPI serial port, a 6-channel 10-bit ADC (8 channels in TQFP and MLF packages), a pro-

grammable Watchdog Timer with internal Oscillator, and five software selectable power

saving modes. The Idle mode stops the CPU while allowing the SRAM, Timer/Counters,

USART, 2-wire Serial Interface, 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.

The device is manufactured using Atmel’s high density non-volatile memory technology.

The On-chip ISP Flash allows the program memory to be reprogrammed In-System

through an SPI serial interface, by a conventional non-volatile 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. Soft-

ware in the Boot Flash section will continue to run while the Application Flash section is

updated, providing true Read-While-Write operation. By combining an 8-bit RISC CPU

wi th I n-System Self -Program mabl e Flash on a monol it hic chi p, the A tm el

ATmega48/88/168 is a powerful microcontroller that provides a highly flexible and cost

effective solution to many embedded control applications.

The ATmega48/88/168 AVR is supported with a full suite of program and system devel-

opment tools including: C Compilers, Macro Assemblers, Program

Debugger/Simulators, In-Circuit Emulators, and Evaluation kits.

Comparison Between

ATmega48, ATmega88,

and ATmega168

The ATmega48, ATmega88 and ATmega168 differ only in memory sizes, boot loader

support, and interrupt vector sizes. Table 1 summarizes the different memory and inter-

rupt vector sizes for the three devices.

Table 1.

Memory Size Summary

Device

ATmega48

ATmega88

ATmega168

Flash

4K Bytes

8K Bytes

16K Bytes

EEPROM

256 Bytes

512 Bytes

RAM

512 Bytes

1K Bytes

Interrupt Vector Size

1 instruction word/vector

2 instruction words/vector

ATmega88 and ATmega168 support a real Read-While-Write Self-Programming mech-

anism. There is a separate Boot Loader Section, and the SPM instruction can only

execute from there. In ATmega48, there is no Read-While-Write support and no sepa-

rate Boot Loader Section. The SPM instruction can execute from the entire Flash.

ATmega48/88/168

2545B–AVR–01/04

ATmega48/88/168

Pin Descriptions

VCC

GND

Port B (PB7..0) XTAL1/

XTAL2/TOSC1/TOSC2

Digital supply voltage.

Ground.

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 tri-stated when a reset

condition becomes active, even if the clock is not running.

Depending on the clock selection fuse settings, PB6 can be used as input to the invert-

ing Oscillator amplifier and input to the internal clock operating circuit.

Depending on the clock selection fuse settings, PB7 can be used as output from the

inverting Oscillator amplifier.

If the Internal Calibrated RC Oscillator is used as chip clock source, PB7..6 is used as

TOSC2..1 input for the Asynchronous Timer/Counter2 if the AS2 bit in ASSR is set.

The various special features of Port B are elaborated in “Alternate Functions of Port B”

on page 69 and “System Clock and Clock Options” on page 24.

Port C (PC5..0)

Port C is a 7-bit bi-directional I/O port with internal pull-up resistors (selected for each

bit). The PC5..0 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 tri-stated when a

reset condition becomes active, even if the clock is not running.

If the RSTDISBL Fuse is programmed, PC6 is used as an I/O pin. Note that the electri-

cal characteristics of PC6 differ from those of the other pins of Port C.

If the RSTDISBL Fuse is unprogrammed, PC6 is used as a 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 Table 20 on page 41. Shorter

pulses are not guaranteed to generate a Reset.

The various special features of Port C are elaborated in “Alternate Functions of Port C”

on page 73.

Port D (PD7..0)

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 tri-stated when a reset

condition becomes active, even if the clock is not running.

The various special features of Port D are elaborated in “Alternate Functions of Port D”

on page 75.

AVCC

AVCC is the supply voltage pin for the A/D Converter, PC3..0, and ADC7..6. It should be

externally connected to V

, even if the ADC is not used. If the ADC is used, it should be

connected to V

through a low-pass filter. Note that PC6..4 use digital supply voltage,

AREF is the analog reference pin for the A/D Converter.

PC6/RESET

AREF

2545B–AVR–01/04

Recommended Resources

STK4151 II power amplifier circuit diagram

Application of SG in hard disk drive

PCT temperature regulator circuit

DTMF encoding circuit

Three-phase waveform generator circuit

Lead-linked push-pull voltage converter

Received the Open1081 board, posted pictures: I just received the board this afternoon, let me show you! ! ! ! Attached is the download address: [url=http://www.waveshare.net/wiki/Open1081]http://www.waveshare.net/wiki/Open1081[/url]...; whlwan RF/Wirelessly

The problem of the program not being able to be downloaded is solved, and the cause is discussed and analyzed. It is urgent.: As shown in the picture, STC uses serial port download. If you don't solder 75179, the program can't be downloaded. You can just remove it. What's the reason?...; pyy1980 MCU

Urgently looking for expert programming advice: library ieee; USE ieee.std_logic_1164.all; use ieee.std_logic_arith.all; entity div_out is port( din,clk:in std_logic; chk:in std_logic_vector(7 downto 0); en ,reset:in std_logic ; div_clk:~out std_lo...; eeleader FPGA/CPLD

485: The upper computer sends a command frame to the lower computer to read data, but the lower computer returns only the second half of the data, or garbled code. In either case, there is a frame tail. Si...; zzbaizhi Microcontroller MCU

Keil ARM5 supports ARM7/9 CM series devices: 1. Keil ARM5 download: [url]http://yunpan.cn/QbU3eM4jeYt3t[/url] 2. Install the required support package [url]http://yunpan.cn/QUjsLwJhDhgVm[/url] 3. You don’t need the support package, just download ...; paulhyde stm32/stm8

【EEworld original tutorial discussion】+ subsequent expectations: I just finished watching it and passed the exam. I feel great. I hope that the series of videos to be released in the future can be combined with relevant examples to explain. I look forward to the su...; jxsl Microcontroller MCU

Shortcut: A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DZ

Popular Components