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LPC47M14X bảng dữ liệu(PDF) 197 Page - SMSC Corporation

tên linh kiện LPC47M14X
Giải thích chi tiết về linh kiện  128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB
PDF  205 Pages
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nhà sản xuất  SMSC [SMSC Corporation]
Trang chủ  http://www.smsc.com
Logo SMSC - SMSC Corporation

LPC47M14X bảng dữ liệu(HTML) 197 Page - SMSC Corporation

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SMSC DS – LPC47M14X
Page 197
Rev. 03/19/2001
t2
t1
PCI_CLK
SER_IRQ
FIGURE 39 – SETUP AND HOLD TIME
NAME
DESCRIPTION
MIN
TYP
MAX
UNITS
t1
SER_IRQ Setup Time to PCI_CLK Rising
7
nsec
t2
SER_IRQ Hold Time to PCI_CLK Rising
0
nsec
Data (5-8 Bits)
t1
Data
TXD1, 2
Start
Parity
Stop (1-2 Bits)
FIGURE 40 – SERIAL PORT DATA
NAME
DESCRIPTION
MIN
TYP
MAX
UNITS
t1
Serial Port Data Bit Time
tBR
1
nsec
Note 1: tBR is 1/Baud Rate. The Baud Rate is programmed through the divisor latch registers. Baud Rates have
percentage errors indicated in the “Baud Rate” table in the “Serial Port” section.
J1X, J1Y,
J2X, J2Y
2
3
VREF
t1
VREF +/- 5%
FIGURE 41 – JOYSTICK POSITION SIGNAL
NAME
DESCRIPTION
MIN
TYP
MAX
UNITS
t1
Rise Time to 2/3 VREF
20
µsec
J1B1, J1B2,
J2B1, J2B2
t1
t2
90%
10%
90%
10%
FIGURE 42 – JOYSTICK BUTTON SIGNAL
NAME
DESCRIPTION
MIN
TYP
MAX
UNITS
t1, t2
Button Fall/Rise Time
10
µsec



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