ATMEGA103L-4AC Atmel, ATMEGA103L-4AC Datasheet - Page 105
ATMEGA103L-4AC
Manufacturer Part Number
ATMEGA103L-4AC
Description
IC MCU 128K 4MHZ A/D LV 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets
1.ATMEGA103-6AC.pdf
(141 pages)
2.ATMEGA103-6AC.pdf
(4 pages)
3.ATMEGA103L-4AC.pdf
(4 pages)
Specifications of ATMEGA103L-4AC
Core Processor
AVR
Core Size
8-Bit
Speed
4MHz
Connectivity
SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
32
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 ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
64-TQFP, 64-VQFP
For Use With
ATSTK501 - ADAPTER KIT FOR 64PIN AVR MCU
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Parallel Programming
Signal Names
0945I–AVR–02/07
The Flash Program memory array on the ATmega103(L) is organized as 512 pages of
256 bytes each. When programming the Flash, the Program data is latched into a page
buffer. This allows one page of program data to be programmed simultaneously in either
Programming mode.
The EEPROM Data memory array on the ATmega103(L) is programmed byte-by-byte in
either Programming mode. An auto-erase cycle is provided within the self-timed
EEPROM write instruction in the Serial Programming mode.
During programming, the supply voltage must be in accordance with Table 36.
Table 36. Supply Voltage during Programming
This section describes how to Parallel Program and verify Flash Program memory,
EEPROM Data memory, Lock bits and Fuse bits in the ATmega103(L). Pulses are
assumed to be at least 500 ns unless otherwise noted.
In this section, some pins of the ATmega103(L) are referenced by signal names describ-
ing their function during parallel programming (see Figure 72 and Table 37). Pins not
described in Table 37 are referenced by pin names.
The XA1/XA0 pins determine the action executed when the XTAL1 pin is given a posi-
tive pulse. The bit coding is shown in Table 38.
When pulsing WR or OE, the command loaded determines the action executed. The
command is a byte where the different bits are assigned functions, as shown in Table
39.
Figure 72. Parallel Programming
Part
ATmega103
ATmega103L
RDY/BSY
PAGEL
+12V
BS1
XA0
XA1
WR
OE
Serial Programming
4.0 - 5.0V
3.2 - 3.6V
PD1
PD2
PD3
PD4
PD5
PD6
PA0
RESET
PD7
XTAL1
GND
ATmega103(L)
PB7 - PB0
VCC
ATmega103(L)
Parallel Programming
V
CC
DATA
4.0 - 5.0V
3.2 - 5.0V
105
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