ATTINY24A-SSUR Atmel, ATTINY24A-SSUR Datasheet - Page 169

• Manufacturer Part Number: ATTINY24A-SSUR
• Description: MCU AVR 2KB FLASH 20MHZ 14SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

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

19.7.5
8183C–AVR–03/11
Programming the EEPROM
Figure 19-4.
Figure 19-5.
The EEPROM is organized in pages, see
EEPROM, the data is latched into a page buffer. This allows one page of data to be pro-
grammed simultaneously. The programming algorithm for the EEPROM Data memory is as
follows (refer to
SDO
PB0
PA6
PA5
PA4
SDI
SCI
SII
1. Load Command “Write EEPROM”.
2. Load EEPROM Page Buffer.
3. Program EEPROM Page. Wait after Instr. 2 until SDO goes high for the “Page Program-
4. Repeat 2 through 3 until the entire EEPROM is programmed or until all data has been
5. End Page Programming by Loading Command “No Operation”.
ming” cycle to finish.
programmed.
PROGRAM MEMORY
PROGRAM
COUNTER
PAGE
0
MSB
Table 19-16 on page
Addressing the Flash which is Organized in Pages
High-voltage Serial Programming Waveforms
PAGE ADDRESS
WITHIN THE FLASH
MSB
MSB
1
PCMSB
2
PCPAGE
3
170):
4
PAGEMSB
PCWORD
Table 20-11 on page
5
WORD ADDRESS
WITHIN A PAGE
6
INSTRUCTION WORD
ATtiny24A/44A/84A
7
PAGE
LSB
LSB
LSB
180. When programming the
8
9
PCWORD[PAGEMSB:0]:
00
01
02
PAGEEND
10
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