ATMEGA128A-ANR Atmel, ATMEGA128A-ANR Datasheet - Page 295
ATMEGA128A-ANR
Manufacturer Part Number
ATMEGA128A-ANR
Description
IC MCU AVR 128K FLASH 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA128A-ANR
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)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP
Core
AVR8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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8151H–AVR–02/11
Figure 26-1. Parallel Programming
Table 26-7.
Table 26-8.
Signal Name in
Programming Mode
RDY/BSY
OE
WR
BS1
XA0
XA1
PAGEL
BS2
DATA
PAGEL
XA1
XA0
BS1
Pin
Pin Name Mapping
Pin Values Used to Enter Programming Mode
RDY/BSY
PAGEL
+12 V
BS2
BS1
XA0
XA1
WR
OE
Pin Name
PB7-0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PA0
PD1
PD2
PD3
PD4
PD5
PD6
RESET
XTAL1
GND
PD7
PA0
I/O
I/O
O
I
I
I
I
I
I
I
Prog_enable[3]
Prog_enable[2]
Prog_enable[1]
Prog_enable[0]
Function
0: Device is busy programming, 1: Device is ready for
new command
Output Enable (Active low)
Write Pulse (Active low)
Byte Select 1 (“0” selects low byte, “1” selects high byte)
XTAL Action Bit 0
XTAL Action Bit 1
Program Memory and EEPROM data Page Load
Byte Select 2 (“0” selects low byte, “1” selects 2’nd high
byte)
Bi-directional Data bus (Output when OE is low)
Symbol
PB7 - PB0
AVCC
VCC
+5V
+5V
ATmega128A
DATA
Value
0
0
0
0
295
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