ATMEGA168-20MU datasheet, PDF - EEWORLD Datasheet

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ATMEGA168-20MU: Description8-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, QCC32; CategoryThe embedded processor and controller Microcontrollers and processors; File Size3MB，374 Pages; ManufacturerAtmel (Microchip); Environmental Compliance

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ATMEGA168-20MU Overview

8-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, QCC32

ATMEGA168-20MU Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Atmel (Microchip)
Parts packaging code	QFN
package instruction	HVQCCN, LCC32,.2SQ,20
Contacts	32
Reach Compliance Code	unknown
ECCN code	EAR99
Factory Lead Time	1 week
core architecture	AVR
Device core	AVR
clock speed	20
Memory	1
flash memory	16
were able	0
Adc channel	8
ADC resolution	10
Has ADC	YES
Other features	OPERATES AT 2.7 V MINIMUM SUPPLY AT 10 MHZ
Address bus width
bit size	8
CPU series	AVR RISC
maximum clock frequency	20 MHz
DAC channel	NO
DMA channel	NO
External data bus width
JESD-30 code	S-XQCC-N32
JESD-609 code	e3
length	5 mm
Humidity sensitivity level	1
Number of I/O lines	23
Number of terminals	32
On-chip program ROM width	16
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
PWM channel	YES
Package body material	UNSPECIFIED
encapsulated code	HVQCCN
Encapsulate equivalent code	LCC32,.2SQ,20
Package shape	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	260
power supply	3/5 V
Certification status	Not Qualified
RAM (bytes)	1024
rom(word)	8192
ROM programmability	FLASH
Maximum seat height	1 mm
speed	20 MHz
Maximum slew rate	12 mA
Maximum supply voltage	5.5 V
Minimum supply voltage	4.5 V
Nominal supply voltage	5 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn)
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	40
width	5 mm
uPs/uCs/peripheral integrated circuit type	MICROCONTROLLER, RISC
Base Number Matches	1

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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 20 MIPS Throughput at 20 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 QFN/MLF package

– 6-channel 10-bit ADC in PDIP Package

– Programmable Serial USART

– Master/Slave SPI Serial Interface

– Byte-oriented 2-wire Serial Interface (Philips I

C compatible)

– 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, 28-pad QFN/MLF and 32-pad QFN/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 - 4 MHz @ 1.8 - 5.5V, 0 - 10 MHz @ 2.7 - 5.5V

– ATmega48/88/168: 0 - 10 MHz @ 2.7 - 5.5V, 0 - 20 MHz @ 4.5 - 5.5V

Low Power Consumption

– Active Mode:

250 µA at 1 MHz, 1.8V

15 µA at 32 kHz, 1.8V (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. 2545J–AVR–12/06

ATmega48/88/168

1.1

1.1.1

Pin Descriptions

VCC

Digital supply voltage.

1.1.2

GND

Ground.

1.1.3

Port B (PB7:0) XTAL1/XTAL2/TOSC1/TOSC2

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 inverting Oscil-

lator 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

and

”System Clock and Clock Options” on page 27.

1.1.4

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.

1.1.5

PC6/RESET

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

acteristics 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 27-3 on page 307.

Shorter pulses are not guaran-

teed to generate a Reset.

The various special features of Port C are elaborated in

”Alternate Functions of Port C” on page

81.

1.1.6

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

2545J–AVR–12/06

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