ATMEGA8HVD-4MX Atmel, ATMEGA8HVD-4MX Datasheet - Page 131

• 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: -

24.4
24.5
Table 24-6.
Table 24-7.
24.6
8052B–AVR–09/08
ATmega4HVD
ATmega8HVD
ATmega4HVD
ATmega8HVD
Device
Device
Calibration Bytes
Page Size
Serial Downloading
No. of Words in a Page and No. of Pages in the Flash
No. of Words in a Page and No. of Pages in the EEPROM
2K words (4K bytes)
4K words (8K bytes)
EEPROM Size
The ATmega4HVD/8HVD has a calibration byte for the Fast RC Oscillator. This byte resides in
a high byte in the signature address space. During Reset, the calibration byte for the Fast RC
Oscillator is automatically written into the corresponding calibration register.
Both the Flash and EEPROM memory arrays can be programmed using the serial SPI bus
while RESET is pulled to GND. The serial interface consists of pins SCK, MOSI (input) and
MISO (output). After RESET is set low, the Programming Enable instruction needs to be exe-
cuted first before program/erase operations can be executed. NOTE, in
132, the pin mapping for SPI programming is listed. Not all parts use the SPI pins dedicated
for the internal SPI interface.
Figure 24-1. Serial Programming and Verify
Flash Size
256 bytes
256 bytes
MOSI
MISO
Page Size
Page Size
SCK
32 words
32 words
4 bytes
4 bytes
PCWORD
PCWORD
EEA[1:0]
EEA[1:0]
RESET
GND
PC[4:0]
PC[4:0]
No. of Pages
No. of Pages
ATmega4HVD/8HVD
128
64
64
64
VFET
BATT
3.0 - 6.0V
PCPAGE
PCPAGE
EEA[7:2]
EEA[8:2]
PC[10:5]
PC[11:5]
Table 24-8 on page
EEAMSB
PCMSB
10
11
7
8
131