Rainbow-electronics MAX16068 Manual do Utilizador Página 4
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4 ______________________________________________________________________________________
MAX16068
6-Channel, Flash-Configurable System Manager
with Nonvolatile Fault Registers
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 2.8V to 14V, T
A
= T
J
= -40NC to +85NC, unless otherwise specified. Typical values are at V
ABP
= V
DBP
= V
CC
= 3.3V,
T
A
= +25NC.) (Note 2)
Note 2: Specifications are guaranteed for the stated global conditions, unless otherwise noted. 100% production tested at T
A
=
+25NC and T
A
= +85NC. Specifications at T
A
= -40NC are guaranteed by design.
Note 3: For V
CC
of 3.6V or lower, connect V
CC
, DBP, and ABP together. For higher supply applications, connect only V
CC
to the
supply rail.
Note 4: Applies to RESET (except for a reset timeout period of 25Fs), fault, autoretry, sequence delays, and watchdog timeout.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SMBus TIMING
Serial Clock Frequency f
SCL
400 kHz
Bus Free Time Between STOP
and START Condition
t
BUF
1.3
Fs
START Condition Setup Time t
SU:STA
0.6
Fs
START Condition Hold Time t
HD:STA
0.6
Fs
STOP Condition Setup Time t
SU:STO
0.6
Fs
Clock Low Period t
LOW
1.3
Fs
Clock High Period t
HIGH
0.6
Fs
Data Setup Time t
SU:DAT
100 ns
Output Fall Time t
OF
10pF P C
BUS
P 400pF
250 ns
Data Hold Time t
HD:DAT
From 50% SCL falling to SDA
change
Receive 0.15
Fs
Transmit 0.3 0.9
Pulse Width of Spike Suppressed t
SP
250 ns
SMBus Timeout t
TIMEOUT
SMBCLK time low for reset 22 35 ms
JTAG INTERFACE
TDI, TMS, TCK Logic-Low Input
Voltage
V
IL
Input voltage falling 0.8 V
TDI, TMS, TCK Logic-High Input
Voltage
V
IH
Input voltage rising 2.0 V
TDO Logic-Output Low Voltage V
OL_TDO
I
SINK
= 3mA 0.4 V
TDO Logic-Output High Voltage V
OH_TDO
I
SOURCE
= 200FA
2.4 V
TDI, TMS Pullup Resistors R
JPU
Pullup to DBP 30 50 65
kI
I/O Capacitance C
I/O
5 pF
TCK Clock Period t
1
1000 ns
TCK High/Low Time t
2,
t
3
50 500 ns
TCK to TMS, TDI Setup Time t
4
15 ns
TCK to TMS, TDI Hold Time t
5
15 ns
TCK to TDO Delay t
6
500 ns
TCK to TDO High-Z Delay t
7
500 ns
- MAX16068 1
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