ATTINY44V-10PU Atmel, ATTINY44V-10PU Datasheet - Page 168
![IC MCU AVR 4K FLASH 10MHZ 14-DIP](/photos/7/39/73953/313-14-dip_sml.jpg)
ATTINY44V-10PU
Manufacturer Part Number
ATTINY44V-10PU
Description
IC MCU AVR 4K FLASH 10MHZ 14-DIP
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY44V-10PU
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
12
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 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
14-DIP (0.300", 7.62mm)
Package
14PDIP
Device Core
AVR
Family Name
ATtiny
Maximum Speed
10 MHz
Operating Supply Voltage
2.5|3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
12
Interface Type
SPI/USI
On-chip Adc
8-chx10-bit
Number Of Timers
2
For Use With
ATAVRISP2 - PROGRAMMER AVR IN SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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19.7
19.7.1
168
High-Voltage Serial Programming Algorithm
ATtiny24/44/84
Enter High-voltage Serial Programming Mode
To program and verify the ATtiny24/44/84 in the High-voltage Serial Programming mode, the fol-
lowing sequence is recommended (See instruction formats in
The following algorithm puts the device in High-voltage Serial Programming mode:
If the rise time of the V
tive algorithm can be used:
Table 19-15. High-voltage Reset Characteristics
Supply Voltage
V
4.5V
5.5V
1. Set Prog_enable pins listed in
2. Apply 4.5 - 5.5V between V
3. Wait 20 - 60 µs, and apply 11.5 - 12.5V to RESET.
4. Keep the Prog_enable pins unchanged for at least 10 µs after the High-voltage has
5. Release the Prog_enable[2] pin after t
6. Wait at least 300 µs before giving any serial instructions on SDI/SII.
7. Exit Programming mode by power the device down or by bringing RESET pin to 0V.
1. Set Prog_enable pins listed in
2. Apply 4.5 - 5.5V between V
3. Monitor V
4. Keep the Prog_enable pins unchanged for at least 10 µs after the High-voltage has
5. Release the Prog_enable[2] pin to avoid drive contention on the Prog_enable[2]/SDO
6. Wait until V
7. Exit Programming mode by power the device down or by bringing RESET pin to 0V.
CC
to 0V.
the next 20 µs.
been applied to ensure the Prog_enable Signature has been latched.
to 0V.
been applied to ensure the Prog_enable Signature has been latched.
pin.
SDI/SII.
CC
CC
, and as soon as V
actually reaches 4.5 - 5.5V before giving any serial instructions on
RESET Pin High-voltage Threshold
CC
is unable to fulfill the requirements listed above, the following alterna-
CC
CC
V
and GND. Ensure that V
and GND.
Table 19-14 on page 167
Table 19-14 on page 167
11.5V
11.5V
CC
HVRST
reaches 0.9 - 1.1V, apply 11.5 - 12.5V to RESET.
HVRST
has elapsed.
CC
Minimum High-voltage Period for
Table 19-16 on page
to “000”, RESET pin and V
to “000”, RESET pin and V
reaches at least 1.8V within
Latching Prog_enable
100 ns
100 ns
t
HVRST
8006K–AVR–10/10
171):
CC
CC
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