W742E Просмотр технического описания (PDF) - Winbond
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W742E Datasheet PDF : 60 Pages
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W742E/C811
W742C811 PAD List, continued
==============================================================================
PAD NO PAD NAME
PIN NAME
X
Y
==============================================================================
91
SEG<21>
91
-57.75
2019.15
92
SEG<22>
92
-187.75
2019.15
93
SEG<23>
93
-317.75
2019.15
94
SEG<24>
94
-447.75
2019.15
95
SEG<25>
95
-577.75
2019.15
96
SEG<26>
96
-707.75
2019.15
97
SEG<27>
97
-837.75
2019.15
98
SEG<28>
98
-967.75
2019.15
99
SEG<29>
99
-1097.75
2019.15
100
SEG<30>
100
-1227.75
2019.15
==============================================================================
4. PIN DESCRIPTION
SYMBOL
XIN2
XOUT2
XIN1
XOUT1
RA0-RA3
Data_IO
RB0−RB3
RC0−RC3
RD0−RD3
I/O
FUNCTION
I Input pin for sub-oscillator.
Connected to 32.768 KHz crystal only.
O Output pin for sub-oscillator with internal oscillation capacitor.
Connected to 32.768 KHz crystal only.
I Input pin for main-oscillator.
Connected to 3.58 MHz crystal or resistor to generate system clock.
O Output pin for main-oscillator.
Connected to 3.58 MHz crystal or resistor to generate system clock.
I/O Input/Output port.
Input/output mode specified by port mode 1 register (PM1).
RA.3: Serial data Input/Output for electrical erasable EPROM type
I/O Input/Output port.
Input/output mode specified by port mode 2 register (PM2).
I Input port only.
Each pin has an independent interrupt capability.
I Input port only.
This port can release hold mode but can not occur interrupt service
routine.
Publication Release Date: December 2000
-9-
Revision A1
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