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W55FC200 Data Sheet
Winbond Electronics Corp.
Release Date:
January 2, 2001
1.2 W55FC200 Features
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Operating Voltage: 2.4V ~ 5.5V
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Crystal Oscillation Circuit:
#"
Crystal/Ceramic oscillator: up to 4 MHz
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Power-down Mode
#"
Hold Mode: no operation (except for oscillator)
#"
Stop Mode: no operation (including oscillator)
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Package:
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PDIP-28
#"
SOP-28
#"
DICE-29
1.3 W55FC200 Pin Description
Symbol
I/O
I
Function
XIN
Input pin for oscillator.
Connected to crystal to generate system clock.
XOUT
O
Output pin for oscillator.
Connected to crystal to generate system clock.
RA0
RA3
I/O
Input/Output port. Input/output mode specified by port mode 1 register (PM1).
When used as output port, can provide high sink current for driving LED.
RB0
RB3
I/O
Input/Output port. Input/output mode specified by port mode 2 register (PM2).
When used as output port, can provide high sink current for driving LED.
RC0
RC3
I/O
Input/Output port. Input/output mode specified by port mode 4 register (PM4).
Each pin has an independent interrupt capability in input mode.
RD0
RD3
RE0/DOUT,
RE1/CLKO,
RE2/DIN,
RE3/CLKI
MFP
I/O
Input/Output port. Input/output mode specified by port mode 5 register (PM5).
Special input/output port.
This port can be configured by software to act as the output of internal port RT or
the serial I/O port. When used as output port, can provide high sink current for
driving LED.
Output pin only.
This pin can output modulating or nonmodulating frequency, or Timer 1 clock
output specified by mode register 1 (MR1).
External interrupt pin with pull-high resistor.
System reset pin with pull-high resistor.
I/O
O
INT
RES
VDD
I
I
I
Positive power supply (+).
VSS
I
Negative power supply (-).