ATMEGA8HVD-4MX Atmel, ATMEGA8HVD-4MX Datasheet - Page 70
ATMEGA8HVD-4MX
Manufacturer Part Number
ATMEGA8HVD-4MX
Description
MCU AVR 8K FLASH 2.1-8V 4MHZ QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA8HVD-4MX.pdf
(168 pages)
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
-
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14.4
14.4.1
14.4.2
14.4.3
14.4.4
70
Register Description
ATmega4HVD/8HVD
MCUCR – MCU Control Register
PORTB – Port B Data Register
DDRB – Port B Data Direction Register
PINB – Port B Input Pins Address
• Bit 4 – PUD: Pull-up Disable
When this bit is written to one, the pull-ups in the I/O ports are disabled even if the DDxn and
PORTxn Registers are configured to enable the pull-ups ({DDxn, PORTxn} = 0b01). See
”Configuring the Pin” on page 62
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
N/A
R
7
–
0
7
R
0
R
R
7
0
7
-
-
-
N/A
R
R
R
R
6
–
0
6
0
6
0
6
-
-
-
CKOE
for more details about this feature.
N/A
R/W
R
R
5
0
5
0
5
R
-
-
-
5
0
N/A
R
R
4
0
4
0
R
-
4
PUD
-
-
R/W
4
0
N/A
R
R
3
0
3
0
R
-
3
-
-
R
3
–
0
PORTB2
DDB2
PINB2
R/W
R/W
N/A
2
0
R
2
0
2
2
–
R
0
PORTB1
DDB1
PINB1
R/W
R/W
N/A
1
0
1
0
R
1
R
1
–
0
PORTB0
PINB0
DDB0
R/W
R/W
N/A
0
0
0
0
R
R
0
0
–
0
8052B–AVR–09/08
MCUCR
PORTB
DDRB
PINB
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