AT90S4433-8PI Atmel, AT90S4433-8PI Datasheet - Page 89
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AT90S4433-8PI
Manufacturer Part Number
AT90S4433-8PI
Description
IC MCU 4K FLSH 8MHZ A/D IT 28DIP
Manufacturer
Atmel
Series
AVR® 90Sr
Datasheet
1.AT90S4433-8AC.pdf
(126 pages)
Specifications of AT90S4433-8PI
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
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:
AT90S4433-8PI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
1042H–AVR–04/03
G: Write Data High Byte
1. Set BS to “1”. This selects high data.
2. Give WR a negative pulse. This starts programming of the data byte. RDY/BSY
3. Wait until RDY/BSY goes high to program the next byte.
(See Figure 64 for signal waveforms.)
The loaded command and address are retained in the device during programming. For
efficient programming, the following should be considered:
•
•
•
These considerations also apply to EEPROM programming and Flash, EEPROM and
signature bytes reading.
Figure 63. Programming the Flash Waveforms
RDY/BSY
RESET
goes low.
The command needs to be loaded only once when writing or reading multiple
memory locations.
Address High Byte needs to be loaded only before programming a new 256-word
page in the Flash.
Skip writing the data value $FF, that is, the contents of the entire Flash and
EEPROM after a Chip Erase.
XTAL1
DATA
XA1
XA0
WR
OE
BS
12V
$10
ADDR. HIGH
ADDR. LOW
DATA LOW
AT90S/LS4433
89