ATMEGA88P-20MUR Atmel, ATMEGA88P-20MUR Datasheet - Page 317

• Manufacturer Part Number: ATMEGA88P-20MUR
• Description: MCU AVR 8KB FLASH 20MHZ 32QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA88P-20MUR

• 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): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

28.7
Table 28-6
Serial Interface meets or exceeds these requirements under the noted conditions.
Timing symbols refer to
Table 28-6.
Notes:
8025L–AVR–7/10
Symbol
V
V
V
V
t
t
t
I
C
f
Rp
t
t
t
t
t
t
t
t
r
of
SP
i
SCL
HD;STA
LOW
HIGH
SU;STA
HD;DAT
SU;DAT
SU;STO
BUF
(1)
IL
IH
hys
OL
i
(1)
(1)
(1)
(1)
(1)
2-wire Serial Interface Characteristics
1. In ATmega48P/88P/168P, this parameter is characterized and not 100% tested.
2. Required only for f
describes the requirements for devices connected to the 2-wire Serial Bus. The ATmega48P/88P/168P 2-wire
Parameter
Input Low-voltage
Input High-voltage
Hysteresis of Schmitt Trigger Inputs
Output Low-voltage
Rise Time for both SDA and SCL
Output Fall Time from V
Spikes Suppressed by Input Filter
Input Current each I/O Pin
Capacitance for each I/O Pin
SCL Clock Frequency
Value of Pull-up resistor
Hold Time (repeated) START Condition
Low Period of the SCL Clock
High period of the SCL clock
Set-up time for a repeated START condition
Data hold time
Data setup time
Setup time for STOP condition
Bus free time between a STOP and START
condition
2-wire Serial Bus Requirements
Figure
SCL
28-6.
> 100 kHz.
IHmin
to V
ILmax
f
CK
(4)
10 pF < C
0.1V
> max(16f
3 mA sink current
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
CC
Condition
< V
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
b
< 400 pF
SCL
i
< 0.9V
, 250kHz)
CC
(3)
(5)
ATmega48P/88P/168P
20 + 0.1C
20 + 0.1C
0.05 V
V
--------------------------- -
V
--------------------------- -
CC
CC
0.7 V
3mA
3mA
-0.5
250
100
Min
-10
4.0
0.6
4.7
1.3
4.0
0.6
4.7
0.6
4.0
0.6
4.7
1.3
–
–
0
0
–
0
0
0
0,4V
0,4V
CC
CC
b
b
(2)
(3)(2)
(3)(2)
V
0.3 V
1000ns
---------------- -
CC
300ns
------------- -
50
3.45
Max
300
250
400
0.4
0.9
C
10
10
C
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
+ 0.5
b
(2)
b
CC
Units
kHz
µA
pF
ns
ns
ns
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
ns
ns
µs
µs
µs
µs
Ω
Ω
V
V
V
V
317