ATmega48PA 带有4K系统内可编程Flash存储器

Flash (Kbytes)	4
EEPROM (Kbytes)	0.25
SRAM (Bytes)	512
Max I/O Pins	23
F.max (MHz)	20
Vcc (V)	1.8-5.5
10-bit A/D Channels	8
Analog Comparator	Yes
16-bit Timers	1
8-bit Timer	2
Brown Out Detector	Yes
Ext Interrupts	26
Hardware Multiplier	Yes
Interrupts	26
ISP	Yes
On Chip Oscillator	Yes
PWM Channels	6
RTC	Yes
Self Program Memory	Yes
SPI	1+USART
TWI	Yes
UART	1
Watchdog	Yes
Pb-Free Packages	MLF (VQFN) 28 MLF (VQFN) 32 PDIP 28 TQFP 32

4K byte self-programming Flash Program Memory, 512 byte SRAM, 256 Byte EEPROM, 8 Channel 10-bit A/D-converter(TQFP and QFN/MLF). debugWIRE On-chip Debug System. Up to 20 MIPS throughput at 20 MHz.

• 4KB 系统内可编程Flash存储器：ATmega48PA
• 8KB 系统内可编程Flash存储器：ATmega88PA

The ATmega48PA/88PA 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
ATmega48PA/88PA achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

ATmega48PA 产品特性

• o High Performance, Low Power AVR(R) 8-Bit Microcontroller
  o 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
  o High Endurance Non-volatile Memory Segments
  – 4K/8K Bytes of In-System Self-Programmable Flash progam memory
  (ATmega48PA/88PA)
  – 256/512 Bytes EEPROM (ATmega48PA/88PA)
  – 512/1K Bytes Internal SRAM (ATmega48PA/88PA)
  – 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
  o 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
  Temperature Measurement
  – 6-channel 10-bit ADC in PDIP Package
  Temperature Measurement
  – Programmable Serial USART
  – Master/Slave SPI Serial Interface
  – Byte-oriented 2-wire Serial Interface (Philips I2C compatible)
  – Programmable Watchdog Timer with Separate On-chip Oscillator
  – On-chip Analog Comparator
  – Interrupt and Wake-up on Pin Change
  o Special Microcontroller Features
  – Power-on Reset and Programmable Brown-out Detection
  – Internal Calibrated Oscillator
  – External and Internal Interrupt Sources
  – Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby,
  and Extended Standby
  o I/O and Packages
  – 23 Programmable I/O Lines
  – 28-pin PDIP, 32-lead TQFP, 28-pad QFN/MLF and 32-pad QFN/MLF
  o Operating Voltage:
  – 1.8 - 5.5V for ATmega48PA/88PA
  o Temperature Range:
  – -40·C to 85·C
  o Speed Grade:
  – 0 - 20 MHz @ 1.8 - 5.5V
  o Low Power Consumption at 1 MHz, 1.8V, 25·C for ATmega48PA/88PA:
  – Active Mode: 0.2 mA
  – Power-down Mode: 0.1 μA
  – Power-save Mode: 0.75 μA (Including 32 kHz RTC)

ATmega48PA 订购型号

速度 (MHz)	所需电源	产品号	封装	工作范围
20	1.8 - 5.5	ATmega48PA-AU ATmega48PA-MMH ATmega48PA-MU ATmega48PA-PU	32A 28M1 32M1-A 28P3	Industrial(-40°C － 85°C)

ATmega48PA 应用技术支持与电子电路设计开发资源下载

1. ATMEL 爱特梅尔AVR 微控制器ATmega48PA 数据手册DataSheet 下载. PDF（简洁版）
2. ATMEL 爱特梅尔AVR 微控制器ATmega48PA 数据手册DataSheet 下载. PDF（完整版）
3. Atmel 爱特梅尔AVR 微控制器简介.PDF (编号:Tech AVR 000)MLF 32
4. 面向新手的AVR 开发工具,及基本知识.PDF(编号:Tech AVR 001)
5. 使用AVR 定时/计数器的PWM功能设计要点 .PDF
6. AVR指令集（版本：0856G–AVR–07/08）
7. AVR 微控制器汽车应用解决方案 . pdf
8. AVR 微控制器选型指南. pdf
9. ATMEL 爱特梅尔公司全线产品目录. pdf