ATMEGA128A-AUR Atmel, ATMEGA128A-AUR Datasheet - Page 43
ATMEGA128A-AUR
Manufacturer Part Number
ATMEGA128A-AUR
Description
MCU AVR 128K FLASH 16MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA128A-AUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
128KB (64K x 16)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
4K 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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA128A-AUR
Manufacturer:
ATMEL
Quantity:
3 000
Part Number:
ATMEGA128A-AUR
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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8.8
8151H–AVR–02/11
External Clock
Watchdog Timer and for the Reset Time-out. For more information on the pre-programmed cali-
bration value, see the section
Table 8-8.
Note:
When this Oscillator is selected, start-up times are determined by the SUT fuses as shown in
Table
Table 8-9.
Notes:
To drive the device from an external clock source, XTAL1 should be driven as shown in
8-4. To run the device on an external clock, the CKSEL fuses must be programmed to “0000”.
By programming the CKOPT fuse, the user can enable an internal 36pF capacitor between
XTAL1 and GND.
Figure 8-4.
SUT1:0
10
00
01
11
(1)
8-9. XTAL1 and XTAL2 should be left unconnected (NC).
1. The device is shipped with this option selected.
1. The device is shipped with this option selected.
Start-up Time from Power-
CKSEL3:0
0001
down and Power-save
0010
0011
0100
Internal Calibrated RC Oscillator Operating Modes
Start-up Times for the Internal Calibrated RC Oscillator Clock Selection
External Clock Drive Configuration
(1)
6 CK
6 CK
6 CK
“Calibration Byte” on page
EXTERNAL
SIGNAL
CLOCK
Additional Delay from
Reset (V
Reserved
Nominal Frequency (MHz)
4.1ms
65ms
CC
–
= 5.0V)
294.
1.0
2.0
4.0
8.0
Recommended Usage
BOD enabled
Fast rising power
Slowly rising power
ATmega128A
Figure
43
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