Datasheet

AD5627R/AD5647R/AD5667R, AD5627/AD5667
Rev. 0 | Page 6 of 32
I
2
C TIMING SPECIFICATIONS
V
DD
= 2.7 V to 5.5 V; all specifications T
MIN
to T
MAX
, f
SCL
= 3.4 MHz, unless otherwise noted.
1
Table 4.
Parameter Conditions
2
Min Max Unit Description
f
SCL
3
Standard mode 100 kHz Serial clock frequency
Fast mode 400 kHz
High speed mode, C
B
= 100 pF 3.4 MHz
High speed mode, C
B
= 400 pF 1.7 MHz
t
1
Standard mode 4 s t
HIGH
, SCL high time
Fast mode 0.6 s
High speed mode, C
B
= 100 pF 60 ns
High speed mode, C
B
= 400 pF 120 ns
t
2
Standard mode 4.7 s t
LOW
, SCL low time
Fast mode 1.3 s
High speed mode, C
B
= 100 pF 160 ns
High speed mode, C
B
= 400 pF 320 ns
t
3
Standard mode 250 ns t
SU;DAT
, data setup time
Fast mode 100 ns
High speed mode 10 ns
t
4
Standard mode 0 3.45 s t
HD;DAT
, data hold time
Fast mode 0 0.9 s
High speed mode, C
B
= 100 pF 0 70 ns
High speed mode, C
B
= 400 pF 0 150 ns
t
5
Standard mode 4.7 s t
SU;STA,
setup time for a repeated start condition
Fast mode 0.6 s
High speed mode 160 ns
t
6
Standard mode 4 s t
HD;STA
, hold time (repeated) start condition
Fast mode 0.6 s
High speed mode 160 ns
t
7
Standard mode 4.7 s t
BUF
, bus free time between a stop and a start condition
Fast mode 1.3 s
t
8
Standard mode 4 s t
SU;STO
, setup time for a stop condition
Fast mode 0.6 s
High speed mode 160 ns
t
9
Standard mode 1000 ns t
RDA
, rise time of SDA signal
Fast mode 300 ns
High speed mode, C
B
= 100 pF 10 80 ns
High speed mode, C
B
= 400 pF 20 160 ns
t
10
Standard mode 300 ns t
FDA
, fall time of SDA signal
Fast mode 300 ns
High speed mode, C
B
= 100 pF 10 80 ns
High speed mode, C
B
= 400 pF 20 160 ns
t
11
Standard mode 1000 ns t
RCL
, rise time of SCL signal
Fast mode 300 ns
High speed mode, C
B
= 100 pF 10 40 ns
High speed mode, C
B
= 400 pF 20 80 ns
t
11A
Standard mode 1000 ns
t
RCL1
, rise time of SCL signal after a repeated start condition and after
an acknowledge bit
Fast mode 300 ns
High speed mode, C
B
= 100 pF 10 80 ns
High speed mode, C
B
= 400 pF 20 160 ns