CXP84124 Sony Corporation, CXP84124 Datasheet - Page 9

• Manufacturer Part Number: CXP84124
• Description: CMOS 8-bit Single Chip Microcomputer
• Manufacturer: Sony Corporation

PI0/INT0
PI3/INT3
EXTAL
XTAL
2 pins
2 pins
4 pins
1 pin
RST
TEX
TX
Pin
to
EXTAL
XTAL
TEX
Port I
TX
Data bus
Pull-up resistance
Mask option
"0" when reset
RD
"0" when reset
Port direction
Port data
IP
IP
Circuit format
INT0
INT1
INT2
INT3
OP
– 9 –
Pull-up resistor
IP
IP
IP
• When the operation of the oscillation
Schmitt input
circuit is stopped by the software, the
feedback resistor is removed, and
TEX and TX become "Low" level and
"High" level respectively.
• Diagram shows circuit
• Feedback resistor is removed
• Diagram shows circuit
composition during oscillation.
during stop.
composition during oscillation.
Pull-up transistors
approx. 10k
IP
CXP84120/84124
When reset
Oscillation
Oscillation
Low level
Hi-Z