ATMEGA8515L-8AU Atmel, ATMEGA8515L-8AU Datasheet - Page 136
ATMEGA8515L-8AU
Manufacturer Part Number
ATMEGA8515L-8AU
Description
IC AVR MCU 8K 8MHZ 3V 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA8515L-8AU
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
EBI/EMI, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
35
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Processor Series
ATMEGA8x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SPI, USART
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
35
Number Of Timers
2
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Minimum Operating Temperature
- 40 C
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA8515L-8AU
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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ATmega8515(L)
Figure 64. USART Block Diagram
Note:
The dashed boxes in the block diagram separate the three main parts of the USART
(listed from the top): Clock Generator, Transmitter and Receiver. Control Registers are
shared by all units. The clock generation logic consists of synchronization logic for exter-
nal clock input used by synchronous slave operation, and the baud rate generator. The
XCK (Transfer Clock) pin is only used by Synchronous Transfer mode. The Transmitter
consists of a single write buffer, a serial Shift Register, parity generator and control logic
for handling different serial frame formats. The write buffer allows a continuous transfer
of data without any delay between frames. The Receiver is the most complex part of the
USART module due to its clock and data recovery units. The recovery units are used for
asynchronous data reception. In addition to the recovery units, the Receiver includes a
Parity Checker, control logic, a Shift Register and a two level receive buffer (UDR). The
Receiver supports the same frame formats as the Transmitter, and can detect Frame
Error, Data OverRun and Parity Errors.
1. Refer to Figure 1 on page 2, Table 37 on page 73, and Table 31 on page 69 for
USART pin placement.
UCSRA
TRANSMIT SHIFT REGISTER
RECEIVE SHIFT REGISTER
BAUD RATE GENERATOR
UDR (Transmit)
UDR (Receive)
UBRR[H:L]
(1)
UCSRB
GENERATOR
SYNC LOGIC
RECOVERY
RECOVERY
CHECKER
PARITY
PARITY
CLOCK
DATA
OSC
Clock Generator
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
Transmitter
PIN
PIN
PIN
RX
TX
Receiver
UCSRC
2512K–AVR–01/10
XCK
RxD
TxD
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