MAX7359 Maxim, MAX7359 Datasheet - Page 3

• Manufacturer Part Number: MAX7359
• Description: The MAX7359 I²C interfaced peripheral provides microprocessors with management of up to 64 key switches
• Manufacturer: Maxim

I
(V
Note 2: All parameters are tested at T
Note 3: All digital inputs at V
Note 4: Guaranteed by design.
Note 5: C
Note 6: A master device must provide a hold time of at least 300ns for the SDA signal (referred to V
Note 7: I
Note 8: Input filters on the SDA, SCL, and AD0 inputs suppress noise spikes less than 50ns.
2
Input Capacitance
(SCL, SDA, AD0)
SCL Serial-Clock Frequency
Bus Free Time Between a STOP
and a START Condition
Hold Time (Repeated) START
Condition
Repeated START Condition
Setup Time
STOP Condition Setup Time
Data Hold Time
Data Setup Time
SCL Clock Low Period
SCL Clock High Period
Rise Time of Both SDA and SCL
Signals, Receiving
Fall Time of Both SDA and SCL
Signals, Receiving
Fall Time of SDA Transmitting
Pulse Width of Spike Suppressed
C ap aci ti ve Load for E ach Bus Li ne
CC
C TIMING CHARACTERISTICS
= +1.62V to +3.6V, T
the undefined region of SCL’s falling edge.
SINK
b
PARAMETER
= total capacitance of one bus line in pF. t
≤ 6mA.
_______________________________________________________________________________________
A
= T
CC
MIN
or GND.
to T
SYMBOL
t
t
t
t
t
A
HD, STA
SU, STO
HD, DAT
SU, DAT
SU, STA
MAX
t
t
t
t
f
HIGH
= +25°C. Specifications over temperature are guaranteed by design.
LOW
F, TX
C
BUF
SCL
t
C
t
t
SP
R
IN
F
b
, unless otherwise noted. Typical values are at V
(Notes 4, 5)
Bus timeout disabled
(Note 6)
(Notes 4, 5)
(Notes 4, 5)
(Notes 4, 7)
(Notes 4, 8)
(Note 4)
R
and t
Key Switch Controller/GPO
2-Wire Interfaced Low-EMI
F
measured between +0.3V
CONDITIONS
CC
CC
and +0.7V
= +2.5V, T
MIN
100
1.3
0.6
0.6
0.6
1.3
0.7
0
IL
of the SCL signal) to bridge
CC
A
.
0.1C
0.1C
0.1C
20 +
20 +
20 +
TYP
= +25°C.) (Notes 2, 3)
b
b
b
MAX
400
300
300
250
400
0.9
10
50
UNITS
kHz
pF
pF
µs
µs
µs
µs
µs
ns
µs
µs
ns
ns
ns
ns
3