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PC87382 数据表(PDF) 13 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 PC87382
功能描述  LPC-to-LPC Switch for Docking Stations, with Fast Infrared Port, Serial Port and GPIOs
PDF  72 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

PC87382 数据表(HTML) 13 Page - National Semiconductor (TI)

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1.0 Signal/Pin Connection and Description (Continued)
Revision 1.2
13
www.national.com
1.4
INTERNAL PULL-UP AND PULL-DOWN RESISTORS
The signals listed in Table 2 can optionally support internal pull-up (PU) and/or pull-down (PD) resistors. See Section 8.3 on
page 62 for the values of each resistor type.
Table 2. Internal Pull-Up and Pull-Down Resistors
Signal
Pin(s)
Type
Comments
General-Purpose Input/Output (GPIO) Ports
GPIO00-04
11, 12,13,
14, 15
PU30
Programmable
GPIO21
21
PU80
Programmable
GPIO20,
GPIO23
17, 22
PU30
Programmable
Strap Configuration and Testability
BADDR
2
PU30
Strap1
1. Active only during VDD Power-Up reset.
TEST
48
PU30
Strap1
TRIS
47
PU30
Strap1
Docking LPC
DLAD3-0
33, 37, 39,
41
PU30
Active when the switch is off2
2. The Docking LPC signal resistors are active when the corresponding
switch is off.
DLCLK
26
PU30
Active when the switch is off2
DCLKOUT
42
PU80
Active when the switch is off2
DLFRAME
31
PU30
Active when the switch is off2
DLRESET
18
PD120
Active when the switch is off2
DSERIRQ
29
PU30
Active when the switch is off2
DCLKRUN
20
PU30
Active when the switch is off2
DLDRQ
4
PU30



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