ATTINY13-20SSQ Atmel, ATTINY13-20SSQ Datasheet - Page 19
![MCU AVR 1KB FLASH 20MHZ 8SOIC GW](/photos/6/50/65032/453-8-soic_sml.jpg)
ATTINY13-20SSQ
Manufacturer Part Number
ATTINY13-20SSQ
Description
MCU AVR 1KB FLASH 20MHZ 8SOIC GW
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY13-20SSQ
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
6
Program Memory Size
1KB (512 x 16)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
64 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
8-SOIC (3.9mm Width)
Processor Series
ATTINY1x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
64 B
Interface Type
SPI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
6
Number Of Timers
1
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, ATAKSTK511
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 4 Channel
For Use With
ATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVR
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Connectivity
-
Lead Free Status / Rohs Status
Details
- Current page: 19 of 176
- Download datasheet (3Mb)
5.3.6
2535J–AVR–08/10
Preventing EEPROM Corruption
The next code examples show assembly and C functions for reading the EEPROM. The exam-
ples assume that interrupts are controlled so that no interrupts will occur during execution of
these functions.
During periods of low V
too low for the CPU and the EEPROM to operate properly. These issues are the same as for
board level systems using EEPROM, and the same design solutions should be applied.
An EEPROM data corruption can be caused by two situations when the voltage is too low. First,
a regular write sequence to the EEPROM requires a minimum voltage to operate correctly. Sec-
ondly, the CPU itself can execute instructions incorrectly, if the supply voltage is too low.
EEPROM data corruption can easily be avoided by following this design recommendation:
Keep the AVR RESET active (low) during periods of insufficient power supply voltage. This can
be done by enabling the internal Brown-out Detector (BOD). If the detection level of the internal
BOD does not match the needed detection level, an external low V
be used. If a reset occurs while a write operation is in progress, the write operation will be com-
pleted provided that the power supply voltage is sufficient.
Assembly Code Example
C Code Example
EEPROM_read:
unsigned char EEPROM_read(unsigned char ucAddress)
{
}
; Wait for completion of previous write
sbic EECR,EEPE
rjmp EEPROM_read
; Set up address (r17) in address register
out EEARL, r17
; Start eeprom read by writing EERE
sbi EECR,EERE
; Read data from data register
in
ret
/* Wait for completion of previous write */
while(EECR & (1<<EEPE))
/* Set up address register */
EEARL = ucAddress;
/* Start eeprom read by writing EERE */
EECR |= (1<<EERE);
/* Return data from data register */
return EEDR;
;
r16,EEDR
CC
, the EEPROM data can be corrupted because the supply voltage is
CC
reset protection circuit can
19
Related parts for ATTINY13-20SSQ
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ATTINY13-20SI](/photos/6/50/65032/453-8-soic_tmb.jpg)
Part Number:
Description:
IC MCU AVR 1K FLASH 20MHZ 8SOIC
Manufacturer:
Atmel
Datasheet:
![ATtiny13](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
![ATTINY13-20SSU](/photos/6/50/65032/453-8-soic_tmb.jpg)
Part Number:
Description:
IC MCU AVR 1K FLASH 20MHZ 8SOIC
Manufacturer:
Atmel
Datasheet:
![ATTINY13-20MU](/photos/6/87/68751/313-20-qfn_tmb.jpg)
Part Number:
Description:
IC MCU AVR 1K FLASH 10MHZ 20-MLF
Manufacturer:
Atmel
Datasheet:
![ATTINY13-20PU](/photos/6/50/65033/313-8-dip_tmb.jpg)
Part Number:
Description:
IC MCU AVR 1K FLASH 20MHZ 8DIP
Manufacturer:
Atmel
Datasheet:
![ATTINY13-20MMU](/photos/12/13/121304/313-10m1_tmb.jpg)
Part Number:
Description:
MCU AVR 1KB FLASH 20MHZ 3X3 QFN
Manufacturer:
Atmel
Datasheet:
![ATTINY13-20SU](/photos/6/50/65032/453-8-soic_tmb.jpg)
Part Number:
Description:
IC MCU AVR 1K FLASH 20MHZ 8SOIC
Manufacturer:
Atmel
Datasheet:
![ATTINY13-20PJ](/photos/6/50/65033/313-8-dip_tmb.jpg)
Part Number:
Description:
IC MCU AVR 1K 5V 20MHZ 8DIP
Manufacturer:
Atmel
Datasheet:
![ATTINY13-20SJ](/photos/6/50/65032/453-8-soic_tmb.jpg)
Part Number:
Description:
IC MCU AVR 1K 5V 20MHZ 8SOIC
Manufacturer:
Atmel
Datasheet:
![ATTINY13-20SSJ](/photos/6/50/65032/453-8-soic_tmb.jpg)
Part Number:
Description:
IC MCU AVR 1K 5V 20MHZ 8SOIC
Manufacturer:
Atmel
Datasheet:
![ATTINY13-20PI](/photos/6/50/65033/313-8-dip_tmb.jpg)
Part Number:
Description:
IC MCU AVR 1K FLASH 20MHZ 8DIP
Manufacturer:
Atmel
Datasheet:
![ATTINY13-20SSI](/photos/6/50/65032/453-8-soic_tmb.jpg)
Part Number:
Description:
IC MCU AVR 1K FLASH 20MHZ 8SOIC
Manufacturer:
Atmel
Datasheet: