ATtiny48 Atmel Corporation, ATtiny48 Datasheet - Page 217

• Manufacturer Part Number: ATtiny48
• Manufacturer: Atmel Corporation

Specifications of ATtiny48

• Flash (kbytes): 4 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): 0.25
• 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

22.11 Serial Programming Characteristics
8008H–AVR–04/11
Table 22-9.
Notes:
Figure 22-9. Serial Programming Timing
Figure 22-10. Serial Programming Waveforms
SERIAL DATA OUTPUT
SERIAL CLOCK INPUT
Symbol
t
t
t
t
t
t
WLRH
WLRH_CE
XLOL
BVDV
OLDV
OHDZ
SERIAL DATA INPUT
1. t
2. t
commands.
WLRH
WLRH_CE
SAMPLE
MOSI
MISO
(MOSI)
(MISO)
Parameter
WR Low to RDY/BSY High
WR Low to RDY/BSY High for Chip Erase
CLKI Low to OE Low
BS1 Valid to DATA valid
OE Low to DATA Valid
OE High to DATA Tri-stated
SCK
Parallel Programming Characteristics, T
(SCK)
is valid for the Write Flash, Write EEPROM, Write Fuse bits and Write Lock bits
is valid for the Chip Erase command.
t
OVSH
MSB
MSB
(1)
t
SHSL
(2)
t
A
SHOX
= 25°C, V
Min
3.7
7.5
0
0
CC
= 5V (Continued)
Typ
t
SLSH
ATtiny48/88
t
SLIV
Max
250
250
250
4.5
9
LSB
LSB
Units
ms
ms
ns
ns
ns
ns
217