ATMEGA128-16AI Atmel, ATMEGA128-16AI Datasheet - Page 50

• Manufacturer Part Number: ATMEGA128-16AI
• Description: IC AVR MCU 128K 16MHZ 64-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA128-16AI

• 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): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• For Use With: ATSTK501 - ADAPTER KIT FOR 64PIN AVR MCU
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Q1167170A

50
ATmega128
Figure 22. Reset Logic
Table 19. Reset Characteristics
Notes:
Symbol
V
V
V
V
t
t
BOD
RST
HYST
POT
RST
BOT
1. The Power-on Reset will not work unless the supply voltage has been below V
BODLEVEL
RESET
BODEN
Parameter
Power-on Reset
Threshold Voltage
(rising)
Power-on Reset
Threshold Voltage
(falling)
Voltage
Pulse width on RESET
Pin
Brown-out Reset
Threshold Voltage
Minimum low voltage
period for Brown-out
Detection
Brown-out Detector
hysteresis
RESET Pin Threshold
PEN
(1)
Pull-up Resistor
Pull-up Resistor
Power-On Reset
JTAG Reset
Register
FILTER
SPIKE
D
L
Circuit
(2)
Q
Q
CKSEL[3:0]
SUT[1:0]
Watchdog
Watchdog
Oscillator
Generator
BODLEVEL = 1
BODLEVEL = 0
BODLEVEL = 1
BODLEVEL = 0
Timer
Clock
Condition
Reset Circuit
Reset Circuit
Brown-Out
CK
MCU Control and Status
Register (MCUCSR)
DATA BUS
0.2 V
Delay Counters
Min
1.5
2.4
3.7
CC
Typ
100
1.4
1.3
2.6
4.0
2
2
0.85 V
TIMEOUT
Max
2.3
2.3
2.9
4.5
CC
Units
POT
2467V–AVR–02/11
mV
µs
µs
V
V
(falling)