ATTINY44A-SSN Atmel, ATTINY44A-SSN Datasheet - Page 181

• Manufacturer Part Number: ATTINY44A-SSN
• Description: IC MCU AVR 4KB FLASH 20MHZ 14SOI
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY44A-SSN

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, 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-SOIC (3.9mm Width), 14-SOL
• 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: 12
• 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

20.9
8183C–AVR–03/11
High-Voltage Serial Programming Characteristics
Table 20-11. Serial Programming Characteristics, T
Note:
Figure 20-5.
Table 20-12. High-voltage Serial Programming Characteristics
t
Symbol
WLWH_PFB
t
t
Symbol
t
t
SDI (PA6), SII (PA5)
t
OVSH
SHOX
CLCL
SHSL
SLSH
t
t
t
t
t
SHOV
SHSL
SLSH
IVSH
SHIX
1. 2 t
Parameter
Oscillator Period (V
SCK Pulse Width High
SCK Pulse Width Low
MOSI Setup to SCK High
MOSI Hold after SCK High
CLCL
(Unless Otherwise Noted)
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)
High-voltage Serial Programming Timing
SCI (PB0)
= 25°C, V
for f
ck
< 12 MHz, 3 t
CC
CC
= 5V (Unless otherwise noted)
= 4.5V - 5.5V)
t
CLCL
IVSH
for f
ck
>= 12 MHz
t
SHSL
A
= -40°C to +85°C, V
t
SHOV
ATtiny24A/44A/84A
2 t
2 t
2 t
t
t
Min
CLCL
CLCL
CLCL
SHIX
50
CLCL
Min
125
125
50
50
(1)
(1)
Typ
2.5
CC
Typ
16
= 1.8 - 5.5V
t
SLSH
Max
Max
Units
Units
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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