ATMEGA16-16AU SL602 Atmel, ATMEGA16-16AU SL602 Datasheet - Page 294

• Manufacturer Part Number: ATMEGA16-16AU SL602
• Manufacturer: Atmel

Two-wire Serial Interface Characteristics
Table 120
Interface meets or exceeds these requirements under the noted conditions.
Timing symbols refer to
Table 120. Two-wire Serial Bus Requirements
Notes:
2466T–AVR–07/10
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)
1. In ATmega16, this parameter is characterized and not 100% tested.
2. Required only for f
3. C
4. f
describes the requirements for devices connected to the Two-wire Serial Bus. The ATmega16 Two-wire Serial
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
CK
b
= capacitance of one bus line in pF.
= CPU clock frequency
Figure
SCL
146.
> 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)
20 + 0.1C
20 + 0.1C
V
----------------------------
V
----------------------------
0.05 V
CC
CC
0.7 V
3 mA
3 mA
Min
-0.5
250
100
-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)
ATmega16(L)
V
1000ns
------------------ -
0.3 V
CC
300ns
--------------- -
Max
50
3.45
300
250
400
0.4
0.9
C
10
10
C
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
+ 0.5
b
(2)
b
CC
Units
kHz
µA
pF
ns
µs
ns
µs
Ω
V
294