ATMEGA163L-4AC Atmel, ATMEGA163L-4AC Datasheet - Page 81

• Manufacturer Part Number: ATMEGA163L-4AC
• Description: IC AVR MCU 16K A/D 2.7V 44TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA163L-4AC

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

1142E–AVR–02/03
Figure 51. Block Diagram of the Two-wire Serial Interface
The CPU interfaces with the Two-wire Serial Interface via the following five I/O Regis-
ters: the Two-wire Serial Interface Bit Rate Register (TWBR), the Two-wire Serial
Interface Control Register (TWCR), the Two-wire Serial Interface Status Register
(TWSR), the Two-wire Serial Interface Data Register (TWDR), and the Two-wire Serial
Interface Address Register (TWAR, used in Slave mode).
SDA
SCL
OUTPUT
OUTPUT
INPUT
INPUT
TWAR
ADDRESS REGISTER
TWDR
STATUS DECODER
STATE MACHINE
SERIAL CLOCK
COMPARATOR
ARBITRATION
START/STOP
GENERATOR
DATA SHIFT
AND SYNC
REGISTER
STATUS
AND
AND
TWCR
TWSR
ATmega163(L)
REGISTER
REGISTER
CONTROL
CONTROL
STATUS
TIMING
AND
ACK
81