ATTINY44-20PU Atmel, ATTINY44-20PU Datasheet - Page 184

• Manufacturer Part Number: ATTINY44-20PU
• Description: IC MCU AVR 4K FLASH 20MHZ 14-DIP
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY44-20PU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• 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): 2.7 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: 20 MHz
• Operating Supply Voltage: 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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High-Voltage Serial Programming Characteristics
ATtiny24/44/84
Figure 20-6. High-voltage Serial Programming Timing
Table 20-13. High-voltage Serial Programming Characteristics
t
WLWH_PFB
Symbol
SDI (PA6), SII (PA5)
t
t
t
t
t
SHOV
SHSL
SLSH
IVSH
SHIX
T
Parameter
SCI (PB0) Pulse Width High
SCI (PB0) Pulse Width Low
SDI (PA6), SII (PB1) Valid to SCI (PB0) High
SDI (PA6), SII (PB1) Hold after SCI (PB0) High
SCI (PB0) High to SDO (PA4) Valid
Wait after Instr. 3 for Write Fuse Bits
A
SDO (PA4)
SCI (PB0)
= 25°C, V
CC
= 5V (Unless otherwise noted)
t
IVSH
t
SHSL
t
SHOV
t
SHIX
Min
125
125
50
50
Typ
2.5
16
t
SLSH
Max
8006K–AVR–10/10
Units
ms
ns
ns
ns
ns
ns