CXP84124 Sony Corporation, CXP84124 Datasheet - Page 6

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

Input/Output Circuit Formats for Pins
PB2/SCK0
PB5/SCK1
PA0/AN0
PA7/AN7
PB0/CINT
PB1/CS0
PB3/SI0
PB6/SI1
8 pins
4 pins
2 pins
Pin
to
Data bus
Port B
Port B
Port A
Data bus
RD (Port B)
Data bus
Pull-up resistance
Pull-up resistance
Port B direction
Port B output
selection
"0" when reset
"0" when reset
Port A direction
"0" when reset
"0" when reset
"0" when reset
"0" when reset
Port B data
Port A data
Port A input
selection
RD (Port A)
Pull-up resistance
Output enable
Port B direction
"0" when reset
"0" when reset
Port B data
SCK OUT
RD (Port B)
A/D converter
SCK in
Circuit format
CINT
CS0
SI0
SI1
– 6 –
Input multiplexer
Schmitt input
Schmitt input
Pull-up transistors
Pull-up transistors
approx. 10k
approx. 10k
Pull-up transistors
approx. 10k
IP
IP
Input protection
circuit
IP
CXP84120/84124
When reset
Hi-Z
Hi-Z
Hi-Z