ATMEGA323L-4AI Atmel, ATMEGA323L-4AI Datasheet - Page 165
![IC AVR MCU 32K LV 4MZ IND 44TQFP](/photos/6/70/67042/313-44-tqfp_sml.jpg)
ATMEGA323L-4AI
Manufacturer Part Number
ATMEGA323L-4AI
Description
IC AVR MCU 32K LV 4MZ IND 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA323L-4PC.pdf
(247 pages)
Specifications of ATMEGA323L-4AI
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
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
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
ATMEGA323L4AI
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Data Registers
Bypass Register
Device Identification Register
Version
Part Number
Manufacturer ID
1457G–AVR–09/03
The Data Registers are selected by the JTAG Instruction Registers described in section
“Boundary-Scan Specific JTAG Instructions” on page 166. The Data Registers relevant
for Boundary-Scan operations are:
•
•
•
•
The Bypass Register consists of a single Shift Register stage. When the Bypass Regis-
ter is selected as path between TDI and TDO, the register is reset to 0 when leaving the
Capture-DR controller state. The Bypass Register can be used to shorten the scan
chain on a system when the other devices are to be tested.
Figure 87 shows the structure of the Device Identification Register.
Figure 87. The format of the Device Identification Register
Version is a 4-bit number identifying the revision of the component. The relevant version
numbers are shown in Table 55.
Table 55. JTAG Version Numbers
The part number is a 16 bit code identifying the component. The JTAG Part Number for
AVR devices are listed in Table 56.
Table 56. AVR JTAG Part Number
The manufacturer ID for ATMEL is 0x01F (11 bit).
Bit
Device ID
Version
ATmega323 revision B
Part number
ATmega323
Bypass Register
Device Identification Register
Reset Register
Boundary-Scan Chain
MSB
31
Version
4 bits
28
27
Part Number
JTAG Version number (Binary digits)
0010
16 bits
12
JTAG Part Number (Hex)
0x9501
11
Manufacturer ID
ATmega323(L)
11 bits
1
LSB
1 bit
0
1
165
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