ATMEGA103L-4AC Atmel, ATMEGA103L-4AC Datasheet - Page 27
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
- Current page: 27 of 141
- Download datasheet (3Mb)
Power-on Reset
0945I–AVR–02/07
Table 5. Reset Characteristics (V
Note:
A Power-on Reset (POR) circuit ensures that the device is Reset from Power-on. As
shown in Figure 23, an internal timer clocked from the Watchdog Timer Oscillator pre-
vents the MCU from starting until after a certain period after V
on Threshold voltage (V
bits SUT1 and SUT0 are used to select start-up time as indicated in Table 5. A “0” in the
table indicates that the fuse is programmed.
The user can select the start-up time according to typical Oscillator start-up time. The
number of WDT Oscillator cycles used for each Time-out except for SUT = 00 is shown
in Table 6. The frequency of the Watchdog Oscillator is voltage-dependent as shown in
“Typical Characteristics” on page 123.
Table 6. Number of Watchdog Oscillator Cycles
The setting SUT 1/0 = 00 starts the MCU after 5 CPU clock cycles, and can be used
when an external clock signal is applied to the XTAL1 pin. This setting does not use the
WDT Oscillator and enables very fast start-up from the sleep modes Power-down or
Power-save if the clock signal is present during sleep. For details, refer to the program-
ming specification starting on page 104.
If the built-in start-up delay is sufficient, RESET can be connected to V
an external pull-up resistor. By holding the pin low for a period after V
applied, the Power-on Reset period can be extended. Refer to Figure 25 for a timing
example of this.
Symbol
V
V
T
SUT 1/0
01
10
11
TOUT
POT
RST
(1)
1. The Power-on Reset will not work unless the supply voltage has been below V
(falling).
Parameter
Power-on Reset Threshold
(rising)
Power-on Reset Threshold
(falling)
RESET Pin Threshold Voltage
Reset Delay Time-out Period
Time-out at V
0.5 ms
4.0 ms
16.0 ms
POT
), regardless of the V
CC
= 5V
CC
= 5.0V)
Condition
SUT = 00
SUT = 01
SUT = 10
SUT = 11
CC
Number of WDT Cycles
512
4K
16K
rise time (see Figure 24). The Fuse
12.8
Min
1.0
0.4
0.4
3.2
ATmega103(L)
CC
V
16.0
Typ
1.4
0.6
0.5
4.0
CC
5
has reached the Power-
/2
Max
19.2
1.8
0.8
0.6
4.8
CC
directly or via
CC
CPU cycles
has been
Units
ms
V
V
V
POT
27
Related parts for ATMEGA103L-4AC
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
IC MCU 128K 6MHZ A/D 64TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MCU 128K 6MHZ A/D IT 64TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
Atmega103 8-bit With 128k Bytes Of In-system Programmable Flash
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
IC AVR MCU 2.4GHZ XCEIVER 64QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU ATMEGA644/AT86RF230 40-DIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
BUNDLE ATMEGA644P/AT86RF230 QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
BUNDLE ATMEGA644P/AT86RF230 TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU ATMEGA1281/AT86RF230 64-TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU ATMEGA1280/AT86RF230 100TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
BUNDLE ATMEGA1280/AT86RF100-TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
BUNDLE ATMEGA2560V/AT86RF230-ZU
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU ATMEGA2561/AT86RF230 64-TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU, 8BIT, AVR, 16K FLASH, 28PDIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
Microcontroller Modules MCU CARD BIGAVR6 100P W/ ATMEGA2560
Manufacturer:
mikroElektronika