Table of Contents
Advertisement
RTC - 8564 JE/NB
7.2. AC electrical characteristics
Parameter
SCL clock frequency
Start condition set-up time
Start condition hold time
Data set-up time
Data hold time
Stop condition set-up time
Bus free time between a STOP
and START condition
SCL "L" time
SCL "H" time
SCL and SDA rise time
SCL and SDA fall time
Tolerance spike time on bus
Timing chart
START
Protocol
CONDITION
(S)
t
SU ; STA
SCL
(S)
SDA
t
HD ; STA
2
Note : I
C access time between a START and a START condition or between a START and a STOP condition to this
device must be less than one second.
Symbol
f
SCL
t
SU; STA
t
HD; STA
t
SU; DAT
t
HD; DAT
t
SU; STO
t
BUF
t
LOW
t
HIGH
tr
tf
t
SP
BIT 7
BIT 6
MSB
(A7)
(A6)
t
t
1 / f
LOW
HIGH
SCL
t
t
r
f
t
t
SU ; DAT
HD ; DAT
Page - 4
∗ If not specifically indicated, GND=0 V, V
Condition
Min.
0.6
0.6
100
0
0.6
1.3
1.3
0.6
BIT 0
ACK
LSB
(R/W)
(A)
(A)
t
SP
=1.8 V to 5.5 V
DD
, Ta= −40 °C to +85 °C
Typ.
Max.
Unit
400
kHz
µs
µs
ns
ns
µs
µs
µs
µs
µs
0.3
µs
0.3
50
ns
STOP
START
CONDITION
CONDITION
(P)
(S)
t
SU ; STA
(P)
(S)
t
BUF
t
t
SU ; STO
HD ; STA
MQ - 322 - 04
Advertisement
Table of Contents
