ATtiny48 Atmel Corporation, ATtiny48 Datasheet - Page 209

• 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

22.4.2
22.5
8008H–AVR–04/11
System and Reset Characterizations
External Clock Drive
Figure 22-2. External Clock Drive Waveforms
Table 22-2.
Note:
Table 22-3.
Symbol
1/t
t
t
t
t
t
Δ
CLCL
CHCX
CLCX
CLCH
CHCL
Symbol
t
CLCL
V
V
CLCL
t
RST
POT
RST
All DC Characteristics contained in this datasheet are based on simulation and characterization of
other AVR microcontrollers manufactured in the same process technology.
V
Parameter
Oscillator
Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period
from one clock
cycle to the next
Parameter
Power-on Reset Threshold
Voltage (rising)
Power-on Reset Threshold
Voltage (falling)
RESET Pin Threshold
Voltage
Minimum pulse width on
RESET Pin
IL1
External Clock Drive
Reset, Brown-out, and Internal Voltage Characteristics
V
IH1
(2)
V
Min.
250
120
120
CC
0
= 1.8-5.5V
Condition
T
T
V
V
V
A
A
CC
CC
CC
= -40 to +85°C
= -40 to +85°C
Max.
2.0
2.0
= 1.8V
= 3V
= 5V
2
2
Min.
V
166
80
80
CC
0
= 2.7-5.5V
0.2V
Min
Max.
1.6
1.6
6
2
CC
(1)
2000
Typ
700
400
V
Min.
1.5
1.2
83
40
40
CC
0
ATtiny48/88
= 4.5-5.5V
0.9V
Max
Max.
0.5
0.5
12
2
CC
Units
Units
MHz
ns
ns
ns
ns
µs
µs
%
V
V
V
209