ATTINY461A-SU Atmel, ATTINY461A-SU Datasheet - Page 180
ATTINY461A-SU
Manufacturer Part Number
ATTINY461A-SU
Description
IC MCU AVR 4K FLASH 20MHZ 20SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY461A-SU
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SOIC (7.5mm Width)
Controller Family/series
ATtiny
No. Of I/o's
16
Eeprom Memory Size
256Byte
Ram Memory Size
256Byte
Cpu Speed
20MHz
Rohs Compliant
Yes
Processor Series
ATTINY4x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
SPI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
16
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY461A-SU
Manufacturer:
FSC
Quantity:
30 000
Part Number:
ATTINY461A-SU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATTINY461A-SUR
Manufacturer:
HITTIE
Quantity:
2 140
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18.7.7
180
ATtiny261A/461A/861A
Reading the Flash
programmed simultaneously. The programming algorithm for the EEPROM data memory is as
follows (refer to
Data loading):
Figure 18-6. Programming the EEPROM Waveforms
The algorithm for reading the Flash memory is as follows (refer to
page 177
RESET +12V
1. A: Load Command “0001 0001”.
2. G: Load Address High Byte (0x00 - 0xFF).
3. B: Load Address Low Byte (0x00 - 0xFF).
4. C: Load Data (0x00 - 0xFF).
5. E: Latch data (give PAGEL a positive pulse).
6. K: Repeat 3 through 5 until the entire buffer is filled.
7. L: Program EEPROM page
1. A: Load Command “0000 0010”.
2. G: Load Address High Byte (0x00 - 0xFF).
3. B: Load Address Low Byte (0x00 - 0xFF).
4. Set OE to “0”, and BS1 to “0”. The Flash word low byte can now be read at DATA.
5. Set BS to “1”. The Flash word high byte can now be read at DATA.
6. Set OE to “1”.
PAGEL/BS1
RDY/BSY
XA1/BS2
XTAL1
DATA
a. Set BS to “0”.
b. Give WR a negative pulse. This starts programming of the EEPROM page.
c. Wait until to RDY/BSY goes high before programming the next page (See
XA0
WR
OE
RDY/BSY goes low.
18-6
for details on Command and Address loading):
for signal waveforms).
0x11
A
“Programming the Flash” on page 177
ADDR. HIGH
G
ADDR. LOW
B
DATA
C
XX
E
ADDR. LOW
B
for details on Command, Address and
DATA
C
K
XX
E
“Programming the Flash” on
L
8197B–AVR–01/10
Figure
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