HD4074329S Renesas Electronics America, HD4074329S Datasheet - Page 46

• 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
42
Serial mode register (SMR): $005
Port mode register A (PMRA): $004
Port mode register B (PMRB): $011
3
3
3
PMRA
Bit 3
0
1
2
2
2
Port
Selection
INT
D
10
1
1
1
1
Figure 24 I/O Switching Mode Registers
PMRA
Bit 2
0
0
0
0
1
R1 /SCK pin mode selection
0
Port
Selection
Initial value: 0000, R/W: W
Initial value: 0000, R/W: W
Initial value: 0000, R/W: W
INT
D
D /ZCD/EVENT pin mode selection
Not used
8
9
0
R1 /SO pin mode selection
R1 /SI pin mode selection
D /INT pin mode selection
D /INT pin mode selection
10
9
2
1
Note: Becomes low sensitivity in subactive mode.
PMRA
Bit 1
Bit 1
0
0
1
1
0
1
*
PMRB
Port
Selection
Bit 0
R1
SI
0
1
0
1
1
SMR
Bit 3
ZCD (low sensitivity)
ZCD (high sensitivity)
D
EVENT
8
0
1
PMRA
Bit 0
0
1
Port
Selection
Port
Selection
SCK
R1
Port
Selection
0
SO
R1
2
*