HD4074329S Renesas Electronics America, HD4074329S Datasheet - Page 44

• 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
Input/Output
The MCU has 2 input pins and 33 input/output pins, 8 of the input/output pins being large-current pins (15
mA, max.). A program-controlled pull-up MOS transistor is provided for each input/output pin.
The output buffer is turned on and off by the data control register (DCR) during input through an
input/output pin.
I/O pin circuit types are shown in table 22.
Table 22
40
Output Pin
(with pull-up
MOS transistor)
I/O Pin Type
Common I/O
Pin (with
pull-up MOS
transistor)
Input Pin
Note: For details of the R1 /SO pin, refer to note 2 of table 23.
Circuit Configurations of I/O Pins
Circuit
AC input signal
2
Input control
Input control
V
V
V
V
External capacitor
CC
CC
CC
CC
V
V
V
CC
CC
CC
Output data
Output data
Output data
Zero-crossing
detection circuit
SCK
Input data
Pull-up control signal
Pull-up control signal
Pull-up control signal
Pull-up control signal
Input data
DCR
PDR
DCR
DCR
PDR
SO or BUZZ
SCK
(internal)
Applicable Pins
D
R 0
R 1
R 2
R 3
R 4
R 5
SCK
SO
BUZZ
INT
INT
SI
EVENT
D
D
ZCD
0
10
9
–D
0
0
0
0
0
0
0
1
–R 1
–R 0
–R 2
–R 3
–R 4
–R 5
8
3
3
3
3
3
3