ATTINY13-20SSJ Atmel, ATTINY13-20SSJ Datasheet - Page 92
![IC MCU AVR 1K 5V 20MHZ 8SOIC](/photos/6/50/65032/453-8-soic_sml.jpg)
ATTINY13-20SSJ
Manufacturer Part Number
ATTINY13-20SSJ
Description
IC MCU AVR 1K 5V 20MHZ 8SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY13-20SSJ
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
6
Program Memory Size
1KB (512 x 16)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
64 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Connectivity
-
Other names
ATTINY13-24SSJ
ATTINY13-24SSJ
ATTINY13-24SSJ
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATTINY13-20SSJ
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- Current page: 92 of 176
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14.12.2
92
ATtiny13
ADCSRA – ADC Control and Status Register A
• Bits 4:2 – Res: Reserved Bits
These bits are reserved bits in the ATtiny13 and will always read as zero.
• Bits 1:0 – MUX1:0: Analog Channel Selection Bits
The value of these bits selects which combination of analog inputs are connected to the ADC.
See
will not go in effect until this conversion is complete (ADIF in ADCSRA is set).
Table 14-3.
• Bit 7 – ADEN: ADC Enable
Writing this bit to one enables the ADC. By writing it to zero, the ADC is turned off. Turning the
ADC off while a conversion is in progress, will terminate this conversion.
• Bit 6 – ADSC: ADC Start Conversion
In Single Conversion mode, write this bit to one to start each conversion. In Free Running mode,
write this bit to one to start the first conversion. The first conversion after ADSC has been written
after the ADC has been enabled, or if ADSC is written at the same time as the ADC is enabled,
will take 25 ADC clock cycles instead of the normal 13. This first conversion performs initializa-
tion of the ADC.
ADSC will read as one as long as a conversion is in progress. When the conversion is complete,
it returns to zero. Writing zero to this bit has no effect.
• Bit 5 – ADATE: ADC Auto Trigger Enable
When this bit is written to one, Auto Triggering of the ADC is enabled. The ADC will start a con-
version on a positive edge of the selected trigger signal. The trigger source is selected by setting
the ADC Trigger Select bits, ADTS in ADCSRB.
• Bit 4 – ADIF: ADC Interrupt Flag
This bit is set when an ADC conversion completes and the data registers are updated. The ADC
Conversion Complete Interrupt is executed if the ADIE bit and the I-bit in SREG are set. ADIF is
cleared by hardware when executing the corresponding interrupt handling vector. Alternatively,
ADIF is cleared by writing a logical one to the flag. Beware that if doing a Read-Modify-Write on
ADCSRA, a pending interrupt can be disabled. This also applies if the SBI and CBI instructions
are used.
Bit
Read/Write
Initial Value
Table 14-3 on page 92
MUX1..0
Input Channel Selections
00
01
10
11
ADEN
R/W
7
0
ADSC
R/W
6
0
for details. If these bits are changed during a conversion, the change
ADATE
ADC0 (PB5)
ADC1 (PB2)
ADC2 (PB4)
ADC3 (PB3)
R/W
5
0
ADIF
R/W
4
0
ADIE
R/W
3
0
Single Ended Input
ADPS2
R/W
2
0
ADPS1
R/W
1
0
ADPS0
R/W
0
0
2535J–AVR–08/10
ADCSRA
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