ATMEGA48PA-MMH Atmel, ATMEGA48PA-MMH Datasheet - Page 16

• Manufacturer Part Number: ATMEGA48PA-MMH
• Description: MCU AVR 4KB FLASH IND 28QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA48PA-MMH

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Processor Series: ATMEGA48x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SPI, TWI, UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 23
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32ATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7. AVR Memories
7.1
7.2
8271C–AVR–08/10
Overview
In-System Reprogrammable Flash Program Memory
T h i s
ATmega48A/48PA/88A/88PA/168A/168PA/328/328P. The AVR architecture has two main
memory spaces, the Data Memory and the Program Memory space. In addition, the
ATmega48A/48PA/88A/88PA/168A/168PA/328/328P features an EEPROM Memory for data
storage. All three memory spaces are linear and regular.
The ATmega48A/48PA/88A/88PA/168A/168PA/328/328P contains 4/8/16/32K bytes On-chip
In-System Reprogrammable Flash memory for program storage. Since all AVR instructions are
16 or 32 bits wide, the Flash is organized as 2/4/8/16K x 16. For software security, the Flash
Program memory space is divided into two sections, Boot Loader Section and Application Pro-
gram Section in ATmega88PA and ATmega168PA. See SELFPRGEN description in section
”SPMCSR – Store Program Memory Control and Status Register” on page 294
The Flash memory has an endurance of at least 10,000 write/erase cycles. The
ATmega48A/48PA/88A/88PA/168A/168PA/328/328P Program Counter (PC) is 11/12/13/14 bits
wide, thus addressing the 2/4/8/16K program memory locations. The operation of Boot Program
section and associated Boot Lock bits for software protection are described in detail in
gramming the Flash, ATmega 48A/48PA” on page 270
Write Self-Programming” on page
description on Flash Programming in SPI- or Parallel Programming mode.
Constant tables can be allocated within the entire program memory address space (see the LPM
– Load Program Memory instruction description).
Timing diagrams for instruction fetch and execution are presented in
ing” on page
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
s e c t i o n
13.
d e s c r i b e s
279.
”Memory Programming” on page 296
t h e
d i f f e r e n t
and
”Boot Loader Support – Read-While-
m e m o r i e s
”Instruction Execution Tim-
contains a detailed
for more details.
i n
”Self-Pro-
t h e
16