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參數(shù)資料
| 型號： | MAX734EVKIT |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Evaluation Kit for the MAX734 |
| 中文描述： | MAX734評估板 |
| 文件頁數(shù)： | 3/17頁 |
| 文件大小： | 338K |
| 代理商： | MAX734EVKIT |
M
2-Wire-Interfaced 8-Bit I/O Port Expander
with Reset
_______________________________________________________________________________________
3
Note 1:
All parameters are 100% production tested at T
A
= +25
°
C. Specifications over temperature are guaranteed by design.
Note 2:
Minimum SCL clock frequency is limited by the MAX7310 bus timeout feature, which resets the serial bus interface if either
SDA or SCL is held low for a 30ms minimum.
Note 3:
A master device must internally provide a hold time of at least 300ns for the SDA signal (referred to the V
IL
of the SCL signal) in
order to bridge the undefined region of SCL
’
s falling edge.
Note 4:
t
F
measured between 90% to 10% of V+.
Note 5:
Input filters on the SDA and SCL inputs suppress noise spikes less than 50ns.
DC ELECTRICAL CHARACTERISTICS (continued)
(V+ = 2.3V to 5.5V, GND = 0,
RESET
= V+, T
A
= -40
°
C to +125
°
C, unless otherwise noted. Typical values are at V+ = 3.3V, T
A
= +25
°
C.)
(Note 1)
PARAMETER
SYM B O L
CONDITIONS
MIN
-1
TYP
MAX
+1
UNITS
μA
pF
Leakage Current
Input Capacitance
10
AC ELECTRICAL CHARACTERISTICS
(V+ = 2.3V to 5.5V, GND = 0,
RESET
= V+, T
A
= -40
°
C to +125
°
C, unless otherwise noted.) (Note 1)
PARAMETER
SYM B O L
f
SCL
t
TIMEOUT
CONDITIONS
MIN
TYP
MAX
400
60
UNITS
kHz
ms
SCL Clock Frequency
BUS Timeout
(Note 2)
30
Bus Free Time Between STOP
and START Condition
t
BUF
Figure 2
1.3
μs
Hold Time (Repeated) START
Condition
t
HD, STA
Figure 2
0.6
μs
Repeated START Condition Setup
Time
t
SU, STA
Figure 2
0.6
μs
STOP Condition Setup Time
Data Hold Time
Data Setup Time
SCL Low Period
SCL High Period
SCL/SDA Fall Time (Transmitting)
Pulse Width of Spike Supressed
PORT TIMING
Output Data Valid
Input Data Setup Time
Input Data Hold Time
RESET
Reset Pulse Width
t
SU, STO
t
HD, DAT
t
SU, DAT
t
LOW
t
HIGH
t
F
t
SP
Figure 2
Figure 2 (Note 3)
Figure 2
Figure 2
Figure 2
Figure 2 (Note 4)
(Note 5)
0.6
μs
μs
μs
μs
μs
ns
ns
0.9
0.1
1.3
0.7
250
50
t
PV
t
PS
t
PH
Figure 9
Figure 10
Figure 10
1
μs
μs
μs
29
0
100
ns
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