ATtiny88 Atmel Corporation, ATtiny88 Datasheet - Page 197

• Manufacturer Part Number: ATtiny88
• Manufacturer: Atmel Corporation

Specifications of ATtiny88

• Flash (kbytes): 8 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 12 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 28
• Ext Interrupts: 28
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 64
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 2
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

21.2.6
8008H–AVR–04/11
Reading the Flash
programmed simultaneously. The programming algorithm for the EEPROM data memory is as
follows (refer to
Data loading):
EEPROM programming waveforms are illustrated in
and letters refer to the programming steps described above.
Figure 21-4. Programming the EEPROM Waveforms
The algorithm for reading the Flash memory is as follows (see
194
RESET +12V
• A: Load command “0001 0001”
• G: Load address high byte (0x00 – 0xFF)
• B: Load address low byte (0x00 – 0xFF)
• C: Load data (0x00 – 0xFF)
• E: Latch data (give PAGEL a positive pulse)
• K: Repeat steps B, C, and E until the entire buffer is filled
• L: Program EEPROM page:
• A: Load command “0000 0010”
• G: Load address high byte (0x00 – 0xFF)
• B: Load address low byte (0x00 – 0xFF)
• Set OE to “0”, and BS1 to “0”. The Flash word low byte can now be read at DATA
RDY/BSY
PAGEL
for details on command and address loading):
DATA
CLKI
XA1
XA0
BS1
BS2
– Set BS1 to “0”
– Give WR a negative pulse. This starts programming of the EEPROM page.
– Wait until to RDY/BSY goes high before programming the next page (See
WR
OE
RDY/BSY goes low
4
for signal waveforms)
0x11
A
“Programming the Flash” on page 194
ADDR. HIGH
G
ADDR. LOW
B
DATA
C
XX
E
ADDR. LOW
B
Figure
for details on Command, Address and
DATA
C
K
21-4, where XX means “don’t care”
“Programming the Flash” on page
XX
E
ATtiny48/88
L
Figure 21-
197