ATTINY44-20SSU Atmel, ATTINY44-20SSU Datasheet - Page 177
ATTINY44-20SSU
Manufacturer Part Number
ATTINY44-20SSU
Description
IC MCU AVR 4K FLASH 20MHZ 14SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY44-20SSU
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-SOIC (3.9mm Width), 14-SOL
Cpu Family
ATtiny
Device Core
AVR
Device Core Size
8b
Frequency (max)
20MHz
Interface Type
SPI/USI
Total Internal Ram Size
256Byte
# I/os (max)
12
Number Of Timers - General Purpose
2
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
14
Package Type
SOIC
For Use With
ATAVRISP2 - PROGRAMMER AVR IN SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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20.4.2
Figure 20-3. External Clock Drive Waveform
Table 20-3.
20.5
8006K–AVR–10/10
Symbol
1/t
t
t
t
t
t
Δ
CLCL
CHCX
CLCX
CLCH
CHCL
t
CLCL
CLCL
System and Reset Characteristics
External Clock Drive
Parameter
Clock Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period from one clock cycle to the next
External Clock Drive Characteristics
V
IL1
V
Table 20-4.
Note:
IH1
Symbol
V
V
t
t
V
RST
HYST
BOD
t
I
RST
BG
BG
BG
1. Values are guidelines only.
Parameter
RESET Pin Threshold Voltage
Minimum pulse width on RESET
Pin
Brown-out Detector Hysteresis
Min Pulse Width on
Brown-out Reset
Internal bandgap reference
voltage
Internal bandgap reference
start-up time
Internal bandgap reference
current consumption
Reset, Brown-out, and Internal Voltage Characteristics
V
Min.
250
100
100
CC
0
= 1.8 - 5.5V
Max.
Condition
V
V
V
V
T
V
T
V
T
2.0
2.0
A
A
A
CC
CC
CC
CC
CC
CC
4
2
= 25°C
= 25°C
= 25°C
= 1.8V
= 3V
= 5V
= 5V
= 5V
= 5V
V
Min.
100
CC
40
40
0
= 2.7 - 5.5V
0.2 V
Min
1.0
Max.
1.6
1.6
10
(1)
2
CC
ATtiny24/44/84
Typ
2000
V
700
400
1.1
50
40
15
Min.
2
CC
50
20
20
0
(1)
= 4.5 - 5.5V
0.9V
Max
Max.
1.2
70
0.5
0.5
20
2
CC
(1)
Units
Units
MHz
mV
µA
ns
µs
µs
ns
ns
ns
µs
µs
%
V
V
177
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