UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 70

• Manufacturer Part Number: UPD784026
• Description: 16/8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

2.3 INPUT/OUTPUT CIRCUITS AND CONNECTION OF UNUSED PINS
is not used.
30
P00 to P07
P10/PWM0
P11/PWM1
P12/ASCK2/SCK2
P13/RxD2/SI2
P14/TxD2/SO2
P15 to P17
P20/NMI
P21/INTP0
P22/INTP1
P23/INTP2/CI
P24/INTP3
P25/INTP4/ASCK/SCK1
P26/INTP5
P27/SI0
P30/RxD/SI1
P31/TxD/SO1
P32/SCK0
P33/SB0/SO0
P34/TO0 to P37/TO3
P40/AD0 to P47/AD7
P50/A8 to P57/A15
P60/A16 to
P63/A19
P64/RD
P65/WR
P66/WAIT/HLDRQ
P67/REFRQ/HLDAK
Table 2-5 shows the input/output circuit types of the pins that have functions, and the connection method when that function
Each input/output circuit type is shown in Figure 2-1.
Table 2-5 Pin Input/Output Circuit Types and Recommended Connection When Not Used (1/2)
Pin Name
ROM-less product
Mask ROM product
Input/Output
Circuit Type
CHAPTER 2 PIN FUNCTIONS
10-A
5-A
5-A
8-A
5-A
5-A
2-A
8-A
2-A
5-A
8-A
5-A
5-A
5-A
2
4
Input/Output
Input/output
Input/output
Input/output
Input/output
Input/output
Input/output
Output
Input
Input
Input : Connect to V
Output : Leave open
Input : Connect to V
Output : Leave open
Connect to V
Connect to V
Input : Connect to V
Output : Leave open
Connect to V
Input : Connect to V
Output : Leave open
Leave open
Input : Connect to V
Output : Leave open
Input : Connect to V
Output : Leave open
Recommended Connection
When Not Used
DD
DD
DD
or V
SS
DD
DD
DD
DD
DD
DD