ATtiny24 Atmel Corporation, ATtiny24 Datasheet - Page 177

• Manufacturer Part Number: ATtiny24
• Manufacturer: Atmel Corporation

Specifications of ATtiny24

• Flash (kbytes): 2 Kbytes
• Pin Count: 14
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 4
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 12
• Ext Interrupts: 12
• 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): 0.12
• Eeprom (bytes): 128
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• 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: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

20.4.2
Figure 20-3. External Clock Drive Waveform
Table 20-3.
20.5
8006K–AVR–10/10
Symbol
1/t
t
t
t
t
t
Δ
CLCL
CHCX
CLCX
CLCH
CHCL
t
CLCL
CLCL
System and Reset Characteristics
External Clock Drive
Parameter
Clock Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period from one clock cycle to the next
External Clock Drive Characteristics
V
IL1
V
Table 20-4.
Note:
IH1
Symbol
V
V
t
t
V
RST
HYST
BOD
t
I
RST
BG
BG
BG
1. Values are guidelines only.
Parameter
RESET Pin Threshold Voltage
Minimum pulse width on RESET
Pin
Brown-out Detector Hysteresis
Min Pulse Width on
Brown-out Reset
Internal bandgap reference
voltage
Internal bandgap reference
start-up time
Internal bandgap reference
current consumption
Reset, Brown-out, and Internal Voltage Characteristics
V
Min.
250
100
100
CC
0
= 1.8 - 5.5V
Max.
Condition
V
V
V
V
T
V
T
V
T
2.0
2.0
A
A
A
CC
CC
CC
CC
CC
CC
4
2
= 25°C
= 25°C
= 25°C
= 1.8V
= 3V
= 5V
= 5V
= 5V
= 5V
V
Min.
100
CC
40
40
0
= 2.7 - 5.5V
0.2 V
Min
1.0
Max.
1.6
1.6
10
(1)
2
CC
ATtiny24/44/84
Typ
2000
V
700
400
1.1
50
40
15
Min.
2
CC
50
20
20
0
(1)
= 4.5 - 5.5V
0.9V
Max
Max.
1.2
70
0.5
0.5
20
2
CC
(1)
Units
Units
MHz
mV
µA
ns
µs
µs
ns
ns
ns
µs
µs
%
V
V
177