ATTINY48-MMH Atmel, ATTINY48-MMH Datasheet - Page 111
![MCU AVR 4KB FLASH 12MHZ 28-VQFN](/photos/12/32/123209/28m1-vqfn_sml.jpg)
ATTINY48-MMH
Manufacturer Part Number
ATTINY48-MMH
Description
MCU AVR 4KB FLASH 12MHZ 28-VQFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY48-MMH
Core Processor
AVR
Core Size
8-Bit
Speed
12MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
24
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
For Use With
ATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVR
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Table 12-5.
8008G–AVR–04/11
Mode
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
WGM
13
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Waveform Generation Mode Bit Description
WGM
12
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Table 12-4
correct or the phase and frequency correct, PWM mode.
Table 12-4.
Note:
• Bits 3:2 – Res: Reserved Bits
These bits are reserved and will always read zero.
• Bits 1:0 – WGM1[1:0]: Waveform Generation Mode
Combined with the WGM1[3:2] bits found in the TCCR1B Register, these bits control the count-
ing sequence of the counter, the source for maximum (TOP) counter value, and what type of
waveform generation to be used, see
COM1A1
COM1B1
WGM
11
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
1. A special case occurs when OCR1A/OCR1B equals TOP and COM1A1/COM1B1 is set.
shows the COM1x[1:0] bit functionality when the WGM1[3:0] bits are set to the phase
“Phase Correct PWM Mode” on page 103.
WGM
10
COM1A0
COM1B0
Compare Output Mode, Phase Correct and Phase & Frequency Correct PWM
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Timer/Counter
Mode of Operation
Normal
PWM, Phase Correct, 8-bit
PWM, Phase Correct, 9-bit
PWM, Phase Correct, 10-bit
CTC
Fast PWM, 8-bit
Fast PWM, 9-bit
Fast PWM, 10-bit
PWM, Phase & Frequency Correct
PWM, Phase & Frequency Correct
PWM, Phase Correct
PWM, Phase Correct
CTC
(Reserved)
Fast PWM
Fast PWM
Description
Normal port operation, OC1A/OC1B disconnected.
WGM1[3:0] = 8, 9, 10 or 11: Toggle OC1A on Compare Match, OC1B
disconnected (normal port operation). For all other WGM1 settings, normal
port operation, OC1A/OC1B disconnected.
Clear OC1A/OC1B on Compare Match when up-counting. Set OC1A/OC1B
on Compare Match when downcounting.
Set OC1A/OC1B on Compare Match when up-counting. Clear OC1A/OC1B
on Compare Match when downcounting.
Table
12-5.
for more details.
TOP
0xFFFF
0x00FF
0x01FF
0x03FF
OCR1A
0x00FF
0x01FF
0x03FF
ICR1
OCR1A
ICR1
OCR1A
ICR1
–
ICR1
OCR1A
Update of
OCR1
Immediate
TOP
TOP
TOP
Immediate
TOP
TOP
TOP
BOTTOM
BOTTOM
TOP
TOP
Immediate
–
TOP
TOP
ATtiny48/88
x
at
BOTTOM
TOV1 Flag
Set on
MAX
BOTTOM
BOTTOM
BOTTOM
MAX
TOP
TOP
TOP
BOTTOM
BOTTOM
BOTTOM
MAX
–
TOP
TOP
See
111
(1)
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