HD4074329S Renesas Electronics America, HD4074329S Datasheet - Page 48

• Manufacturer Part Number: HD4074329S
• Description: MCU 4-Bit HMCS400 CISC 20KB EPROM 3.3V/5V 64-Pin SDIP
• Manufacturer: Renesas Electronics America

Specifications of HD4074329S

• Package: 64SDIP
• Family Name: HMCS400
• Maximum Speed: 4.5 MHz
• Ram Size: 268 Byte
• Program Memory Size: 20 KB
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 4 Bit
• Program Memory Type: EPROM
• Number Of Programmable I/os: 35
• On-chip Adc: 4-chx8-bit
• Operating Temperature: -20 to 75 °C
• Number Of Timers: 3

HD404328 Series
Table 23
44
PMRC, Bit 3
DCR
PDR
CMOS
Buffer
Pull-Up MOS Transistor
Notes:
1.
2.
3.
PMOS (A)
NMOS (B)
Programmable I/O Circuits
Various I/O methods can be selected by different combinations of settings of the above mode
registers (PMRC3, DCR, PDR).
The PMOS (A) transistor of the R1 /SO pin can be turned off by setting bit 2 of the
miscellaneous register (MIS) to 1.
The relationships between DCRs and pins
are as shown on the right.
Pull-up
MOS
transistor
Bit 2
MIS
0
1
R1 /SO Pin
V
PMOS (A)
CC
2
On
Off
Off
Off
Off
0
0
0
Figure 25 I/O Buffer Configuration
V
CC
Off
Off
Off
1
PMOS (A)
NMOS (B)
2
Input control
Off
On
Off
1
0
DCR0
DCR1
DCR2
DCR3
DCR4
DCR5
DCRB
DCRC
DCRD
DCR
On
Off
Off
1
Bit 3
R0
R1
R2
R3
R4
R5
—
Off
Off
Off
D
D
0
0
1
3
7
3
3
3
3
3
3
Bit 2
R0
R1
R2
R3
R4
R5
—
Off
Off
On
D
D
1
2
6
2
2
2
2
2
2
Input data
PMRC3
DCR
PDR
Bit 1
R0
R1
R2
R3
R4
R5
—
D
D
Off
On
Off
1
0
1
5
1
1
1
1
1
1
Bit 0
R0
R1
R2
R3
R4
R5
D
D
D
On
Off
On
1
0
4
8
0
0
0
0
0
0