CXP84124 Sony Corporation, CXP84124 Datasheet - Page 7

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

PC0 to PC7
PE0/EC0
PE1/EC1
PE2/RMC
PE3/NMI
PB4/SO0
PB7/SO1
8 pins
4 pins
1 pin
1 pin
Pin
Data bus
Data bus
Port C
Port E
Port B
Port B
Data bus
Pull-up resistance
Port C direction
"0" when reset
"1" when reset
"0" when reset
Port B output
selection
RD (Port B)
Port C data
Output enable
Port B data
RD (Port C)
RD (Port B)
Pull-up resistance
Port B direction
Port B output
selection
"0" when reset
"0" when reset
Port B data
Output enable
SO
IP
SO
Schmitt input
Circuit format
– 7 –
Internal reset signal
RD (Port E)
Pull-up transistors
approx. 10k
1
Pull-up transistors
approx. 10k
IP
EC0
EC1
RMC/NMI
Data bus
2
1
2
of 12mA possible
approx. 10k
Large current drive
Pull-up transistors
IP
CXP84120/84124
When reset
High level
Hi-Z
Hi-Z
Hi-Z