ATMEGA32A-MUR Atmel, ATMEGA32A-MUR Datasheet - Page 12
![MCU AVR 32KB FLASH 16MHZ 44QFN](/photos/12/13/121316/313-44-qfn_sml.jpg)
ATMEGA32A-MUR
Manufacturer Part Number
ATMEGA32A-MUR
Description
MCU AVR 32KB FLASH 16MHZ 44QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA32A-MU.pdf
(353 pages)
Specifications of ATMEGA32A-MUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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6.5.1
6.6
8155C–AVR–02/11
Instruction Execution Timing
SPH and SPL – Stack Pointer High and Low Register
tions of the AVR architecture is so small that only SPL is needed. In this case, the SPH Register
will not be present.
This section describes the general access timing concepts for instruction execution. The AVR
CPU is driven by the CPU clock clk
chip. No internal clock division is used.
Figure 6-4
vard architecture and the fast-access Register File concept. This is the basic pipelining concept
to obtain up to 1 MIPS per MHz with the corresponding unique results for functions per cost,
functions per clocks, and functions per power-unit.
Figure 6-4.
Figure 6-5
operation using two register operands is executed, and the result is stored back to the destina-
tion register.
Bit
Read/Write
Initial Value
2nd Instruction Execute
3rd Instruction Execute
1st Instruction Execute
2nd Instruction Fetch
3rd Instruction Fetch
4th Instruction Fetch
1st Instruction Fetch
shows the internal timing concept for the Register File. In a single clock cycle an ALU
shows the parallel instruction fetches and instruction executions enabled by the Har-
The Parallel Instruction Fetches and Instruction Executions
SP15
R/W
R/W
SP7
15
7
0
0
clk
SP14
CPU
R/W
R/W
SP6
14
6
0
0
SP13
R/W
R/W
SP5
CPU
13
5
0
0
, directly generated from the selected clock source for the
T1
SP12
R/W
R/W
SP4
12
4
0
0
SP11
R/W
R/W
SP3
11
3
0
0
T2
SP10
R/W
R/W
SP2
10
2
0
0
T3
R/W
R/W
SP9
SP1
ATmega32A
9
1
0
0
R/W
R/W
SP8
SP0
8
0
0
0
T4
SPH
SPL
12
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