ATTINY24A-SSUR Atmel, ATTINY24A-SSUR Datasheet - Page 18
ATTINY24A-SSUR
Manufacturer Part Number
ATTINY24A-SSUR
Description
MCU AVR 2KB FLASH 20MHZ 14SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY24A-MU.pdf
(286 pages)
Specifications of ATTINY24A-SSUR
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
2KB (1K x 16)
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
128 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
*
Package
14SOIC W
Device Core
AVR
Family Name
ATtiny
Maximum Speed
20 MHz
Operating Supply Voltage
2.5|3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
12
Interface Type
SPI/USI
On-chip Adc
8-chx10-bit
Number Of Timers
2
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATTINY24A-SSUR
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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5.3.6
18
ATtiny24A/44A/84A
Program Examples
The calibrated Oscillator is used to time the EEPROM accesses. Make sure the Oscillator fre-
quency is within the requirements described in
page
The following code examples show one assembly and one C function for erase, write, or atomic
write of the EEPROM. The examples assume that interrupts are controlled (e.g., by disabling
interrupts globally) so that no interrupts will occur during execution of these functions.
Note:
Assembly Code Example
C Code Example
EEPROM_write:
void EEPROM_write(unsigned int ucAddress, unsigned char ucData)
{
}
31.
; Wait for completion of previous write
sbic EECR, EEPE
rjmp EEPROM_write
; Set Programming mode
ldi
out
; Set up address (r18:r17) in address registers
out EEARH, r18
out EEARL, r17
; Write data (r19) to data register
out EEDR, r19
; Write logical one to EEMPE
sbi EECR, EEMPE
; Start eeprom write by setting EEPE
sbi EECR, EEPE
ret
/* Wait for completion of previous write */
while(EECR & (1<<EEPE))
/* Set Programming mode */
EECR = (0<<EEPM1)|(0<<EEPM0)
/* Set up address and data registers */
EEAR = ucAddress;
EEDR = ucData;
/* Write logical one to EEMPE */
EECR |= (1<<EEMPE);
/* Start eeprom write by setting EEPE */
EECR |= (1<<EEPE);
See
;
“Code Examples” on page
r16, (0<<EEPM1)|(0<<EEPM0)
EECR, r16
6.
“OSCCAL – Oscillator Calibration Register” on
8183C–AVR–03/11
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