AT90S4433-8AI Atmel, AT90S4433-8AI Datasheet - Page 34
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AT90S4433-8AI
Manufacturer Part Number
AT90S4433-8AI
Description
IC MCU 4K 8MHZ A/D IT 32TQFP
Manufacturer
Atmel
Series
AVR® 90Sr
Datasheet
1.AT90S4433-8AC.pdf
(126 pages)
Specifications of AT90S4433-8AI
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
-40°C ~ 85°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
Company:
Part Number:
AT90S4433-8AI
Manufacturer:
ATMEL
Quantity:
24
Company:
Part Number:
AT90S4433-8AI
Manufacturer:
ATMEL
Quantity:
30
Part Number:
AT90S4433-8AI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Timer/Counter0 Control
Register – TCCR0
34
AT90S/LS4433
Figure 31. Timer/Counter0 Block Diagram
• Bits 7 – 3 – Res: Reserved Bits
These bits are reserved bits in the AT90S4433 and always read as zero.
• Bits 2, 1, 0 – CS02, CS01, CS00: Clock Select0, Bits 2, 1, and 0
The Clock Select0 bits 2, 1, and 0 define the prescaling source of Timer/Counter0.
Table 9. Clock 0 Prescale Select
Bit
$33 ($53)
Read/Write
Initial Value
CS02
0
0
0
0
1
1
1
1
R
7
–
0
CS01
0
0
1
1
0
0
1
1
R
6
–
0
CS00
0
1
0
1
0
1
0
1
R
5
–
0
Description
Stop, Timer/Counter0 is stopped.
CK
CK/8
CK/64
CK/256
CK/1024
External Pin T0, falling edge
External Pin T0, rising edge
R
4
–
0
R
3
–
0
CS02
R/W
2
0
CS01
R/W
1
0
CS00
R/W
1042H–AVR–04/03
0
0
TCCR0
T0