AT90S2313-10PC Atmel, AT90S2313-10PC Datasheet - Page 20
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AT90S2313-10PC
Manufacturer Part Number
AT90S2313-10PC
Description
IC MCU 2K FLSH 10MHZ UART 20DIP
Manufacturer
Atmel
Series
AVR® 90Sr
Datasheet
1.AT90S2313-10PC.pdf
(92 pages)
Specifications of AT90S2313-10PC
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
15
Program Memory Size
2KB (1K x 16)
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 6 V
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
20-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
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ATM
Quantity:
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Company:
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Part Number:
AT90S2313-10PCS
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Quantity:
20 000
Power-on Reset
20
AT90S2313
Table 4. Number of Watchdog Oscillator Cycles
A Power-on Reset (POR) circuit ensures that the device is reset from Power-on. As
shown in Figure 23, an internal timer is clocked from the Watchdog Timer. This timer
prevents the MCU from starting until after a certain period after V
Power-on Threshold voltage (V
can be programmed to give a shorter start-up time if a ceramic resonator or any other
fast-start Oscillator is used to clock the MCU.
If the built-in start-up delay is sufficient, RESET can be connected to V
an external pull-up resistor. By holding the RESET pin low for a period after V
been applied, the Power-on Reset period can be extended. Refer to Figure 25 for a tim-
ing example of this.
Figure 24. MCU Start-up, RESET Tied to V
Figure 25. MCU Start-up, RESET Controlled Externally
INTERNAL
TIME-OUT
INTERNAL
TIME-OUT
FSTRT
Programmed
Unprogrammed
RESET
RESET
RESET
RESET
VCC
VCC
V
V
V
Time-out at V
0.28 ms
16.0 ms
POT
RST
POT
t
TOUT
POT
) (see Figure 24). The FSTRT Fuse bit in the Flash
CC
= 5V
V
RST
CC
.
t
TOUT
Number of WDT Cycles
256
16K
CC
has reached the
CC
directly or via
0839I–AVR–06/02
CC
has