ATMEGA48V-10PI Atmel, ATMEGA48V-10PI Datasheet - Page 18
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ATMEGA48V-10PI
Manufacturer Part Number
ATMEGA48V-10PI
Description
IC AVR MCU 4K 5V 10MHZ 28-DIP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA48V-10PI
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
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 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
ATMEGA48V-12PI
ATMEGA48V-12PI
ATMEGA48V-12PI
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA48V-10PI
Manufacturer:
AGERE
Quantity:
85
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7.3
7.3.1
18
SRAM Data Memory
ATmega48/88/168
Data Memory Access Times
Figure 7-3
The ATmega48/88/168 is a complex microcontroller with more peripheral units than can be sup-
ported within the 64 locations reserved in the Opcode for the IN and OUT instructions. For the
Extended I/O space from 0x60 - 0xFF in SRAM, only the ST/STS/STD and LD/LDS/LDD instruc-
tions can be used.
The lower 768/1280/1280 data memory locations address both the Register File, the I/O mem-
ory, Extended I/O memory, and the internal data SRAM. The first 32 locations address the
Register File, the next 64 location the standard I/O memory, then 160 locations of Extended I/O
memory, and the next 512/1024/1024 locations address the internal data SRAM.
The five different addressing modes for the data memory cover: Direct, Indirect with Displace-
ment, Indirect, Indirect with Pre-decrement, and Indirect with Post-increment. In the Register
File, registers R26 to R31 feature the indirect addressing pointer registers.
The direct addressing reaches the entire data space.
The Indirect with Displacement mode reaches 63 address locations from the base address given
by the Y-register or Z-register.
When using register indirect addressing modes with automatic pre-decrement and post-incre-
ment, the address registers X, Y, and Z are decremented or incremented.
The 32 general purpose working registers, 64 I/O Registers, 160 Extended I/O Registers, and
the 512/1024/1024 bytes of internal data SRAM in the ATmega48/88/168 are all accessible
through all these addressing modes. The Register File is described in
ter File” on page
Figure 7-3.
This section describes the general access timing concepts for internal memory access. The
internal data SRAM access is performed in two clk
shows how the ATmega48/88/168 SRAM Memory is organized.
Data Memory Map
11.
(512/1024/1024 x 8)
160 Ext I/O Reg.
64 I/O Registers
Data Memory
Internal SRAM
32 Registers
0x02FF/0x04FF/0x04FF
0x0000 - 0x001F
0x0020 - 0x005F
0x0060 - 0x00FF
0x0100
CPU
cycles as described in
“General Purpose Regis-
Figure
2545S–AVR–07/10
7-4.
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