ATMEGA88A-MMH Atmel, ATMEGA88A-MMH Datasheet - Page 198
![IC MCU AVR 8K FLASH 28QFN](/photos/12/32/123209/28m1-vqfn_sml.jpg)
ATMEGA88A-MMH
Manufacturer Part Number
ATMEGA88A-MMH
Description
IC MCU AVR 8K FLASH 28QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA88A-MMH
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
23
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Table 19-5.
1.
8271C–AVR–08/10
Baud
Rate
(bps)
2400
4800
9600
14.4k
19.2k
28.8k
38.4k
57.6k
76.8k
115.2k
230.4k
250k
0.5M
1M
Max.
(1)
UBRRn = 0, Error = 0.0%
UBRRn
207
103
51
34
25
16
12
8
6
3
1
1
0
–
U2Xn = 0
0.5 Mbps
Examples of UBRRn Settings for Commonly Used Oscillator Frequencies (Continued)
f
osc
Error
-0.8%
-3.5%
-7.0%
0.2%
0.2%
0.2%
0.2%
2.1%
0.2%
8.5%
8.5%
0.0%
0.0%
–
= 8.0000 MHz
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
UBRRn
416
207
103
68
51
34
25
16
12
8
3
3
1
0
U2Xn = 1
1 Mbps
Error
-0.1%
-0.8%
-3.5%
0.2%
0.2%
0.6%
0.2%
0.2%
2.1%
0.2%
8.5%
0.0%
0.0%
0.0%
UBRRn
287
143
71
47
35
23
17
11
691.2 kbps
8
5
2
2
–
–
U2Xn = 0
f
osc
Error
-7.8%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
=
–
–
11.0592
UBRRn
1.3824 Mbps
575
287
143
95
71
47
35
23
17
11
5
5
2
–
U2Xn = 1
MHz
Error
-7.8%
-7.8%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
–
UBRRn
383
191
95
63
47
31
23
15
11
921.6 kbps
7
3
3
1
0
U2Xn = 0
f
osc
Error
-7.8%
-7.8%
-7.8%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
= 14.7456 MHz
UBRRn
1.8432 Mbps
767
383
191
127
95
63
47
31
23
15
7
6
3
1
U2Xn = 1
Error
-7.8%
-7.8%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
5.3%
198
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