AT90S4433-8AC Atmel, AT90S4433-8AC Datasheet - Page 6
AT90S4433-8AC
Manufacturer Part Number
AT90S4433-8AC
Description
IC MCU 4K FLSH 8MHZ A/D 32TQFP
Manufacturer
Atmel
Series
AVR® 90Sr
Datasheet
1.AT90S4433-8AC.pdf
(126 pages)
Specifications of AT90S4433-8AC
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
20
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 6 V
Data Converters
A/D 6x10b
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
32-TQFP, 32-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT90S4433-8AC
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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- Download datasheet (2Mb)
Clock Options
Crystal Oscillator
External Clock
6
AT90S/LS4433
XTAL1 and XTAL2 are input and output, respectively, of an inverting amplifier, which
can be configured for use as an On-chip Oscillator, as shown in Figure 2 and Figure 3.
Either a quartz crystal or a ceramic resonator may be used.
If the Oscillator is to be used as a clock for an external device, the clock signal from
XTAL2 may be routed to one HC buffer while reducing the load capacitor by 5 pF, as
shown in Figure 3. To drive the device from an external clock source, XTAL2 should be
left unconnected while XTAL1 is driven as shown in Figure 4.
Figure 2. Oscillator Connections
Figure 3. Using MCU Oscillator as a Clock for an External Device
Figure 4. External Clock Drive Configuration
REDUCE BY 5
P
F
MAX 1 HC BUFFER
XTAL1
XTAL2
1042H–AVR–04/03
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