ATTINY24-15SSZ Atmel, ATTINY24-15SSZ Datasheet - Page 172

• Manufacturer Part Number: ATTINY24-15SSZ
• Description: MCU AVR 2K FLASH 15MHZ 14-SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY24-15SSZ

• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Speed: 16MHz
• Number Of I /o: 12
• Eeprom Size: 128 x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Program Memory Size: 2KB (2K x 8)
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Connectivity: USI
• Core Size: 8-Bit
• Cpu Family: ATtiny
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 16MHz
• Interface Type: SPI/UART
• Total Internal Ram Size: 128Byte
• # I/os (max): 12
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 14
• Package Type: SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

21.8.3
21.8.4
172
Atmel ATtiny24/44/84 [Preliminary]
Chip Erase
Programming the Flash
The Chip Erase will erase the Flash and EEPROM
bits are not reset until the program memory has been completely erased. The fuse bits are not
changed. A chip erase must be performed before the flash and/or EEPROM are
reprogrammed.
Note:
1. Load "Chip Erase" command (see
2. Wait after Instr. 3 until SDO goes high for the “Chip Erase” cycle to finish.
3. Load "No Operation" command.
The Flash is organized in pages, see
the program data are latched into a page buffer. This allows one page of program data to be
programmed simultaneously. The following procedure describes how to program the entire
flash memory:
1. Load "Write Flash" command (see
2. Load Flash Page Buffer.
3. Load Flash High Address and Program Page. Wait after Instr. 3 until SDO goes high for
4. Repeat 2 and 3 until the entire flash is programmed, or until all data has been
5. End page programming by loading "No Operation" command.
When writing or reading serial data to the Atmel
ing edge of the serial clock. See
22-9 on page 185
Figure 21-4. Addressing the Flash which is Organized in Pages
the “Page Programming” cycle to finish.
programmed.
1. The EEPROM memory is preserved during Chip Erase if the EESAVE Fuse is programmed.
PROGRAM MEMORY
PROGRAM
COUNTER
PAGE
for details.
PAGE ADDRESS
WITHIN THE FLASH
PCMSB
PCPAGE
Figure 22-5 on page
“Page Size” on page
Table 21-15 on page
Table 21-15 on page
PAGEMSB
PCWORD
WORD ADDRESS
WITHIN A PAGE
®
ATtiny24/44/84, data are clocked on the ris-
(1)
185,
memories, as well as lock bits. The lock
INSTRUCTION WORD
Figure 21-3 on page 170
165. When programming the flash,
PAGE
174).
174).
PCWORD[PAGEMSB:0]:
00
01
02
PAGEEND
7701D–AVR–09/10
and
Table