ATMEGA8HVD-4MX Atmel, ATMEGA8HVD-4MX Datasheet - Page 135

• 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: -

Figure 24-2. Serial Programming Instruction example
24.7
8052B–AVR–09/08
High-voltage Serial Programming
Byte 1
Load Program Memory Page (High/Low Byte)/
Load EEPROM Memory Page (page access)
Bit 15 B
Byte 2
Adr M M S S B
A
This section describes how to program and verify Flash Program memory, EEPROM Data
memory, Lock bits and Fuse bits in the ATmega4HVD/8HVD.
Table 24-11. Pin Name Mapping
The prog_enable minimum period for the Serial Clock Input (SCI) during High-voltage Serial
Programming is 220 ns.
Table 24-12. Pin Values Used to Enter Programming Mode
Signal Name in High-voltage
Serial Programming Mode
SDO
SDI
SII
SCI
Symbol
Prog_enable[0]
Prog_enable[1]
Prog_enable[2]
Prog_enable[3]
Byte 3
Adr LSB
Page Offset
0
Serial Programming Instruction
Byte 4
Program Memory/
EEPROM Memory
Page Buffer
Page N-1
Page 0
Page 1
Page 2
Pin Name
Pin Name
Byte 1
PC1
PC0
PB1
PB0
PB0
PB1
PB2
NC
Page Number
Bit 15 B
I/O
O
I
I
I
Byte 2
Write Program Memory Page/
Write EEPROM Memory Page
Adr MSB
ATmega4HVD/8HVD
Function
Serial Data Output
Serial Data Input
Serial Instruction Input
Serial Clock Input (min. 220ns period)
Byte 3
A A dr r L L SB B
Value
0
0
0
0
0
Byte 4
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