ATtiny461A Atmel Corporation, ATtiny461A Datasheet - Page 188

• Manufacturer Part Number: ATtiny461A
• Manufacturer: Atmel Corporation

Specifications of ATtiny461A

• Flash (kbytes): 4 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 8
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 16
• Ext Interrupts: 16
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• 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): 256
• 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: 6
• Input Capture Channels: 1
• Pwm Channels: 6
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

19.4.2
Figure 19-2. External Clock Drive Waveforms
Table 19-3.
19.5
188
Symbol
1/t
t
t
t
t
t
Δ
CLCL
CHCX
CLCX
CLCH
CHCL
t
CLCL
CLCL
System and Reset Characteristics
ATtiny261A/461A/861A
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 19-4.
Notes:
IH1
Symbol
V
V
t
t
V
HYST
BOD
t
I
RST
RST
BG
BG
BG
1. Not tested. Values are guidelines, only.
Parameter
RESET Pin Threshold Voltage
Min pulse width on RESET Pin
Brown-out Detector Hysteresis
Min Pulse Width on
Brown-out Reset
Internal bandgap voltage
Internal bandgap start-up time
Internal bandgap reference
current consumption
Reset, Brown-out, and Internal Voltage Characteristics
(1)
(1)
V
Min.
250
100
100
CC
0
= 1.8 - 5.5V
(1)
(1)
(1)
(1)
Max.
2.0
2.0
4
2
V
Condition
T
T
T
V
V
V
CC
A
A
A
CC
CC
CC
= 25°C
= 25°C
= 25°C
= 2.7V
= 3V
= 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
2
CC
Typ
V
1.1
50
40
15
Min.
2
CC
50
20
20
0
= 4.5 - 5.5V
0.9 V
Max
Max.
2.5
1.2
70
0.5
0.5
20
8197C–AVR–05/11
2
CC
Units
Units
MHz
mV
µA
µs
µs
µs
ns
ns
ns
µs
µs
%
V
V