CXP84124 Sony Corporation, CXP84124 Datasheet - Page 5

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

PG0 to PG7
PH0 to PH7
PI0/INT0
PI3/INT3
PI4 to PI7
EXTAL
XTAL
TEX
TX
RST
NC
AV
AVss
V
Vss
DD
REF
Symbol
to
I/O
I/O
I/O/Input
I/O
Input
Output
Input
Output
Input
Input
I/O
(Port G)
8-bit I/O port. I/O can be set in a unit of single bits. Incorporation of pull-
up resistor can be set through the software in a unit of 4 bits.
(8 pins)
(Port H)
8-bit I/O port. I/O can be set in a unit of single bits. Incorporation of pull-
up resistor can be set through the software in a unit of 4 bits.
(8 pins)
(Port I)
8-bit I/O ports. I/O can be set in a unit of single
bit. Incorporation of pull-up resistor can be set
through the software in a unit of 4 bits.
(8 pins)
Crystal connectors for system clock oscillation. When the clock is supplied
externally, input to EXTAL; opposite phase clock should be input to XTAL.
Crystal connectors for 32kHz timer/counter clock generation circuit.
Connect a 32kHz crystal oscillator between TEX and TX.
For usage as event input, connect clock oscillation source to TEX, and
open TX.
Low-level active, system reset.
NC. Under normal operating conditions, connect to V
Reference voltage input for A/D converter.
A/D converter GND.
Positive power supply.
GND
– 5 –
Description
External interruption
request inputs.
DD
.
CXP84120/84124