AT90S4433-8PC Atmel, AT90S4433-8PC Datasheet - Page 90
![IC MCU 4K FLSH 8MHZ A/D 28DIP](/photos/7/21/72189/453-28-dip_sml.jpg)
AT90S4433-8PC
Manufacturer Part Number
AT90S4433-8PC
Description
IC MCU 4K FLSH 8MHZ A/D 28DIP
Manufacturer
Atmel
Series
AVR® 90Sr
Datasheet
1.AT90S4433-8AC.pdf
(126 pages)
Specifications of AT90S4433-8PC
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
28-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT90S4433-8PC
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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Reading the Flash
Programming the EEPROM
Reading the EEPROM
90
AT90S/LS4433
Figure 64. Programming the Flash Waveforms (Continued)
The algorithm for reading the Flash memory is as follows (refer to “Programming the
Flash” for details on command and address loading):
A: Load Command “0000 0010”.
B: Load Address High Byte ($00 - $07).
C: Load Address Low Byte ($00 - $FF).
1. Set OE to “0”, and BS to “0”. The Flash word Low Byte can now be read at
2. Set BS to “1”. The Flash word High Byte can now be read from DATA.
3. Set OE to “1”.
The programming algorithm for the EEPROM Data memory is as follows (refer to “Pro-
gramming the Flash” for details on command, address and data loading):
A: Load Command “0001 0001”.
B: Load Address Low Byte ($00 - $FF).
C: Load Data Low Byte ($00 - $FF).
D: Write Data Low Byte.
The algorithm for reading the EEPROM memory is as follows (refer to “Programming the
Flash” for details on command and address loading):
A: Load Command “0000 0011”.
B: Load Address Low Byte ($00 - $FF).
1. Set OE to “0”, and BS to “0”. The EEPROM data byte can now be read at DATA.
2. Set OE to “1”.
RDY/BSY
RESET
DATA.
XTAL1
DATA
XA1
XA0
WR
OE
BS
+12V
DATA HIGH
1042H–AVR–04/03
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