AT90LS2323-4PI Atmel, AT90LS2323-4PI Datasheet - Page 22
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AT90LS2323-4PI
Manufacturer Part Number
AT90LS2323-4PI
Description
IC MCU 2K FLSH 4MHZ LV IT 8DIP
Manufacturer
Atmel
Series
AVR® 90LSr
Datasheet
1.AT90LS2323-4PC.pdf
(64 pages)
Specifications of AT90LS2323-4PI
Core Processor
AVR
Core Size
8-Bit
Speed
4MHz
Connectivity
SPI
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
3
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)
2.7 V ~ 6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
8-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
-
External Reset
22
AT90S/LS2323/2343
Figure 25. MCU Start-up, RESET Tied to V
Figure 26. MCU Start-up, RESET Controlled Externally
An external reset is generated by a low level on the RESET pin. Reset pulses longer
than 50 ns will generate a reset, even if the clock is not running. Shorter pulses are not
guaranteed to generate a reset. When the applied signal reaches the Reset Threshold
Voltage (V
period t
Figure 27. External Reset during Operation
INTERNAL
INTERNAL
TIME-OUT
TIME-OUT
RESET
RESET
RESET
RESET
VCC
VCC
TOUT
RST
has expired.
) on its positive edge, the delay timer starts the MCU after the Time-out
V
V
V
POT
POT
RST
t
TOUT
V
RST
CC
.
t
TOUT
1004D–09/01