ATTINY45-20SUR Atmel, ATTINY45-20SUR Datasheet - Page 175
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ATTINY45-20SUR
Manufacturer Part Number
ATTINY45-20SUR
Description
MCU AVR 4KB FLASH 20MHZ 8SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY45-20SUR
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
6
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 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
ATTINY45-20SU SL383
ATTINY45-20SU SL383
ATTINY45-20SU-SL383
Q4272203
ATTINY45-20SU SL383
ATTINY45-20SU-SL383
Q4272203
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21.8
2586M–AVR–07/10
Serial Programming Characteristics
Figure 21-4. Serial Programming Waveforms
Figure 21-5. Serial Programming Timing
Table 21-11. Serial Programming Characteristics, T
Note:
Symbol
1/t
1/t
1/t
t
t
t
t
t
t
t
t
OVSH
SHOX
CLCL
CLCL
CLCL
SHSL
SLSH
SLIV
CLCL
CLCL
CLCL
SERIAL DATA OUTPUT
SERIAL CLOCK INPUT
SERIAL DATA INPUT
1. 2 t
Parameter
Oscillator Frequency (V
Oscillator Period (V
Oscillator Frequency (V
Oscillator Period (V
Oscillator Frequency (V
Oscillator Period (V
SCK Pulse Width High
SCK Pulse Width Low
MOSI Setup to SCK High
MOSI Hold after SCK High
SCK Low to MISO Valid
CLCL
(Unless Otherwise Noted)
SAMPLE
(MOSI)
(MISO)
for f
(SCK)
MOSI
MISO
SCK
ck
< 12 MHz, 3 t
t
OVSH
CC
CC
CC
MSB
MSB
= 1.8 - 5.5V)
= 2.7 - 5.5V)
= 4.5V - 5.5V)
CC
CC
CC
CLCL
= 1.8 - 5.5V)
= 2.7 - 5.5V)
= 4.5V - 5.5V)
for f
t
SHSL
ck
>= 12 MHz
A
t
SHOX
= -40°C to +85°C, V
2 t
2 t
2 t
t
Min
250
100
CLCL
t
50
CLCL*
CLCL*
CLCL
SLSH
0
0
0
t
SLIV
Typ
CC
= 1.8 - 5.5V
LSB
LSB
Max
100
10
20
4
Units
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
175
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