Datasheet

Sensors
Freescale Semiconductor, Inc. 30
MMA7660FC
APPENDIX D - I
2
C AC CHARACTERISTICS
This section includes information about I
2
C AC Characteristics.
Table 1. I
2
C AC Characteristics
(Typical Operating Circuit, V
DD
= 1.71 V to 2.75 V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical current values are at
V
DD
= 1.8 V, T
A
= +25°C.)
Parameter Symbol Min Typ Max Units
Serial Clock Frequency
(1)
1. Parameters tested 100% at final test at room temperature; limits at -40°C and +85°C, verified by characterization, not test in production.
f
SCL
400 kHz
Bus Free Time Between a STOP and a START Condition
(2)
2. Limits verified by characterization, not tested in production.
t
BUF
1.3 µs
Hold Time, (Repeated) START Condition
(2)
t
HD, STA
0.6 µs
Repeated START Condition Setup Time
(2)
t
SU, STA
0.6 µs
STOP Condition Setup Time
(2)
t
SU, STO
0.6 µs
Data Hold Time
(2)
t
HD, DAT
0.9 µs
Data Setup Time
(2)
t
SU, DAT
100 ns
SCL Clock Low Period
(2)
t
LOW
1.3 µs
SCL Clock High Period
(2)
t
HIGH
0.7 µs
Rise Time of Both SDA and SCL Signals, Receiving
(2)
t
R
20+0.1C
b
300 ns
Fall Time of Both SDA and SCL Signals, Receiving
(2)
t
F
20+0.1C
b
300 ns
Fall Time of SDA Transmitting
(2)
t
F.TX
20+0.1C
b
250 ns
Pulse Width of Spike Suppressed
(2)
t
SP
25 ns
Capacitive Load for Each Bus Line
(2)
C
b
400 pF