ATMEGA8HVD-4MX Atmel, ATMEGA8HVD-4MX Datasheet - Page 144

• Manufacturer Part Number: ATMEGA8HVD-4MX
• Description: MCU AVR 8K FLASH 2.1-8V 4MHZ QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8HVD-4MX

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 5
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 2.4 V
• Data Converters: A/D 1x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 18-MLF® Exposed Pad (Staggered Leads), DFN
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Connectivity: -

26.3
Table 26-2.
Notes:
26.4
Table 26-3.
144
Symbol
V
V
t
V
V
t
t
V
RST
BLOD
BLODTOUT
POT
RST
BLOT, NORMAL
BLOT, START-UP
REF
Symbol
t
INT
System and Reset Characteristics
1. Values are guidelines only. Actual values are TBD.
2. Not tested in production.
3. The ATmega4HVD/8HVD will start up when the voltage at the BATT pin exceeds V
4. The BATT pin monitors the charger voltage. Because of the voltage drop across the body diode of the Discharge FET, the
5. V
6. In normal operation, the BLOD detection level will always be lower than the minimum voltage regulator output voltage when
External Interrupts Characteristics
ATmega4HVD/8HVD
supply voltage at the VFET pin is approximately 0.5V below the V
why typical V
tested down to V
drops to a voltage where correct operation of the microcontroller is no longer guaranteed. The Black-out detector monitors
the output voltage of the regulator, VREG. V
the voltage regulator is operated within its specifications.
BLOT
Power-on, Reset, BLOD, and Voltage Reference Characteristics
(unless otherwise noted)
Asynchronous External Interrupt Characteristics, T
noted)
Parameter
Minimum pulse width for asynchronous external
interrupt
may be below nominal minimum operating voltage for some devices. For devices where this is the case, the device is
Power-on Threshold Voltage
RESET Pin Threshold Voltage
Minimum pulse width on RESET Pin
BLOD Threshold Voltage
BLOD Threshold Voltage
Min Pulse Width on Black-out Reset
Black-out Power-off Delay
Bandgap reference voltage after calibration
Parameter
POT
REG
level is set to 3.0V.
= V
BLOT, NORMAL
during the production test. This guarantees that a Black-out Reset will occur before V
(5)(6)
(2)
(3)
BLOT
(2)
(2)
level is therefore not directly related to the V
A
= -20°C to 85°C, VFET = 2.4 to 4.2V (unless otherwise
Condition
VREG = 2.2V
POT
Condition
level when the ATmega4HVD/8HVD starts up. That is
(1)
, T
A
= -20°C to 85°C, VFET = 2.4 to 4.2V
Min
POT
1.03
Min
.
2.5
0.4
1.7
POT
Typ
50
3.0
Typ
900
1.8
1.1
2.3
2
4
level.
(4)
Max
Max
1.17
3.4
1.9
2.0
2.5
8052B–AVR–09/08
Units
Units
CK
ns
ns
µs
V
V
V
V
V
CC