ATxmega128D4-AU ATMEL [ATMEL Corporation], ATxmega128D4-AU Datasheet - Page 83
ATxmega128D4-AU
Manufacturer Part Number
ATxmega128D4-AU
Description
8/16-bit Atmel XMEGA D4 Microcontroller
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.ATXMEGA128D4-AU.pdf
(136 pages)
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32.15 Two-Wire Interface Characteristics
Table 32-29. Two-wire interface characteristics.
8135L–AVR–06/12
Symbol
V
V
V
V
t
t
t
I
C
f
R
r
of
SP
I
SCL
IH
IL
hys
OL
I
P
Parameter
Input high voltage
Input low 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 for each I/O pin
Capacitance for each I/O pin
SCL clock frequency
Value of pull-up resistor
Table 32-29
The Atmel AVR XMEGA Two-wire interface meets or exceeds these requirements under the
noted conditions. Timing symbols refer to
Figure 32-7. Two-Wire Interface bus timing.
SDA
SCL
IHmin
t
to V
SU;STA
describes the requirements for devices connected to the Two-Wire Interface Bus.
ILmax
t
HD;STA
t
of
3mA, sink current
10pF < C
0.1V
f
f
f
PER
SCL
SCL
≤ 100kHz
> 100kHz
(3)
CC
>max(10f
< V
Condition
b
< 400pF
I
< 0.9V
t
HIGH
t
HD;DAT
SCL
Figure
, 250kHz)
CC
(2)
t
32-7.
LOW
20+0.1C
20+0.1C
V
----------------------------
0.05V
CC
0.7V
t
SU;DAT
3mA
Min.
0.5
-10
–
0
0
0
0.4V
CC
CC
b
b
(1)(2)
(1)(2)
(1)
Typ.
t
r
XMEGA D4
V
0.3×V
CC
100ns
--------------- -
300ns
--------------- -
Max.
300
250
400
0.4
50
10
10
t
C
C
SU;STO
+0.5
t
b
b
BUF
CC
Units
kHz
µA
pF
ns
Ω
V
83
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