AT90S4433-8PC Atmel, AT90S4433-8PC Datasheet - Page 87
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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Enter Programming Mode
1042H–AVR–04/03
Table 30. Pin Name Mapping
Table 31. XA1 and XA0 Coding
Table 32. Command Byte Bit Coding
The following algorithm puts the device in Parallel Programming mode:
1. Apply supply voltage according to Table 29, between V
2. Set the RESET and BS pin to “0” and wait at least 100 ns.
3. Apply 11.5 - 12.5V to RESET. Any activity on BS within 100 ns after +12V has
XA1
Programming Mode
0
0
1
1
Signal Name in
been applied to RESET will cause the device to fail entering Programming mode.
RDY/BSY
XA0
DATA
XA0
XA1
WR
0
1
0
1
OE
BS
Command Byte
1000 0000
0100 0000
0010 0000
0001 0000
0001 0001
0000 1000
0000 0100
0000 0010
0000 0011
Action when XTAL1 is Pulsed
Load Flash or EEPROM Address (high or low address byte determined by BS)
Load Data (high or low data byte for Flash determined by BS)
Load Command
No Action, Idle
PC1 - 0, PB5 - 0
Pin Name
PD1
PD2
PD3
PD4
PD5
PD6
Command Executed
Chip Erase
Write Fuse Bits
Write Lock Bits
Write Flash
Write EEPROM
Read Signature Bytes
Read Fuse and Lock Bits
Read Flash
Read EEPROM
I/O
I/O
O
I
I
I
I
I
Function
0: Device is busy programming, 1: Device is
ready for new command
Output Enable (active low)
Write Pulse (active low)
Byte Select (“0” selects Low Byte, “1”
selects High Byte)
XTAL Action Bit 0
XTAL Action Bit 1
Bi-directional Data Bus (output when OE is
low)
CC
AT90S/LS4433
and GND.
87
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