ATTINY43U-SUR Atmel, ATTINY43U-SUR Datasheet - Page 143
ATTINY43U-SUR
Manufacturer Part Number
ATTINY43U-SUR
Description
MCU AVR 4KB FLASH 8MHZ 20SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY43U-SU.pdf
(182 pages)
Specifications of ATTINY43U-SUR
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
16
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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8048B–AVR–03/09
Figure 19-1. Parallel Programming
Table 19-10. Pin Name Mapping
Table 19-11. Pin Values Used to Enter Programming Mode
Programming Mode
Signal Name in
PAGEL/BS1
RDY/BSY
XA1/BS2
DATA I/O
XA0
WR
OE
PAGEL/BS1
XA1/BS2
XA0
WR
Pin
PB7-PB0
Name
PAGEL/BS1
PA0
PA1
PA2
PA3
PA5
PA6
Pin
RDY/BSY
XA1/BS2
+12 V
XA0
WR
OE
I/O
I/O
O
I
I
I
I
I
PA5
PA0
PA1
PA2
PA3
PA4
CLKI/PA6
RESET/PA7
GND
Prog_enable[3]
Prog_enable[2]
Prog_enable[1]
Prog_enable[0]
Function
Write Pulse (Active low).
CLKI Action Bit 0
CLKI Action Bit 1. Byte Select 2 (“0” selects low byte, “1”
selects 2’nd high byte).
Byte Select 1 (“0” selects low byte, “1” selects high byte).
Program Memory and EEPROM Data Page Load.
Output Enable (Active low).
0: Device is busy programming, 1: Device is ready for new
command.
Bi-directional Data bus (Output when OE is low).
Symbol
PB7 - PB0
VCC
+5V
DATA
Value
0
0
0
0
143
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