ATTINY45-20SUR Atmel, ATTINY45-20SUR Datasheet - Page 28
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
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
- Current page: 28 of 236
- Download datasheet (5Mb)
28
ATtiny25/45/85
Mode” on page
divided by four, providing a 1.6 MHz system clock.
Table 6-6.
Note:
When the calibrated 8 MHz internal oscillator is selected as clock source the start-up times are
determined by the SUT Fuses as shown in
Table 6-7.
Note:
In ATtiny15 Compatibility Mode start-up times are determined by SUT fuses as shown in
6-8
Table 6-8.
Note:
In summary, more information on ATtiny15 Compatibility Mode can be found in sections
(PB5:PB0)” on page
Timer/Counter1 in ATtiny15 Mode” on page
bration Bytes” on page 154
SUT[1:0]
SUT[1:0]
10
below.
00
01
11
00
01
10
11
(2)
1. The device is shipped with this option selected.
2. This setting will select ATtiny15 Compatibility Mode, where system clock is divided by four,
1. If the RSTDISBL fuse is programmed, this start-up time will be increased to 14CK + 4 ms to
2. The device is shipped with this option selected.
1. If the RSTDISBL fuse is programmed, this start-up time will be increased to 14CK + 4 ms to
resulting in a 1.6 MHz clock frequency.
ensure programming mode can be entered.
ensure programming mode can be entered.
CKSEL[3:0]
Internal Calibrated RC Oscillator Operating Modes
Start-up Times for Internal Calibrated RC Oscillator Clock
Start-up Times for Internal Calibrated RC Oscillator Clock (in ATtiny15 Mode)
0010
0011
98). Note that in this mode of operation the 6.4 MHz clock signal is always
from Power-down
from Power-down
(1)
(2)
Start-up Time
Start-up Time
2,
6 CK
6 CK
6 CK
6 CK
6 CK
6 CK
1 CK
“Internal PLL in ATtiny15 Compatibility Mode” on page
and in table
“Clock Prescaler Select” on page
Table 6-7
98,
Additional Delay from
Additional Delay from
Reset (V
Reset (V
“Limitations of debugWIRE” on page
Reserved
14CK + 64 ms
14CK + 64 ms
14CK + 64 ms
14CK + 4 ms
14CK + 4 ms
14CK
14CK
below.
CC
CC
Nominal Frequency
(1)
(1)
= 5.0V)
= 5.0V)
8.0 MHz
6.4 MHz
Recommended Usage
BOD enabled
Fast rising power
Slowly rising power
Recommended Usage
34.
2586M–AVR–07/10
144,
24,
“Port B
“8-bit
Table
“Cali-
Related parts for ATTINY45-20SUR
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ATtiny45](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
![ATtiny45 Automotive](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
![ATTINY45-20SU](/photos/6/50/65032/453-8-soic_tmb.jpg)
Part Number:
Description:
IC AVR MCU 4K 20MHZ 8SOIC
Manufacturer:
Atmel
Datasheet:
![ATTINY45-20PU](/photos/6/50/65033/313-8-dip_tmb.jpg)
Part Number:
Description:
IC AVR MCU 4K 20MHZ 8DIP
Manufacturer:
Atmel
Datasheet:
![ATTINY45-15SZ](/photos/6/50/65032/453-8-soic_tmb.jpg)
Part Number:
Description:
MCU AVR 4K FLASH 15MHZ 8-SOIC
Manufacturer:
Atmel
Datasheet:
![ATTINY45-20XU](/photos/6/83/68331/453-8-tssop_tmb.jpg)
Part Number:
Description:
IC MCU AVR 4K FLASH 20MHZ 8TSSOP
Manufacturer:
Atmel
Datasheet:
![ATTINY45-20MU](/photos/6/87/68751/313-20-qfn_tmb.jpg)
Part Number:
Description:
IC AVR MCU FLASH 4K 20MHZ 20MLF
Manufacturer:
Atmel
Datasheet:
![ATTINY45-20XUR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
MCU AVR 4KB FLASH 20MHZ 8TSSOP
Manufacturer:
Atmel
Datasheet:
![ATTINY45-20SH](/photos/6/50/65032/453-8-soic_tmb.jpg)
Part Number:
Description:
IC MCU AVR 4KB FLASH 20MHZ 8SOIC
Manufacturer:
Atmel
Datasheet:
![ATTINY45-20MUR](/photos/6/87/68751/313-20-qfn_tmb.jpg)
Part Number:
Description:
MCU AVR 4KB FLASH 20MHZ 20QFN
Manufacturer:
Atmel
Datasheet: