HD4074329S Renesas Electronics America, HD4074329S Datasheet - Page 28

• 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
Timer B Interrupt Mask (IMTB: $002, Bit 1): Prevents (masks) an interrupt request caused by the
timer B interrupt request flag, as shown in table 10.
Table 10
IMTB
0
1
Timer C Interrupt Request Flag (IFTC: $002, Bit 2): Set by overflow output from timer C, as shown in
table 11.
Table 11
IFTC
1
Timer C Interrupt Mask (IMTC: $002, Bit 3): Prevents (masks) an interrupt request caused by the
timer C interrupt request flag, as shown in table 12.
Table 12
IMTC
0
1
Zero-Crossing Interrupt Request Flag (IFZC: $003, Bit 0): Set by a zero crossing of an AC input
signal, as shown in table 13. The interrupt edge is selected by the interrupt mode register (IMR: $010), as
shown in figure 9.
Table 13
IFZC
0
1
Zero-Crossing Interrupt Mask (IMZC: $003, Bit 1): Prevents (masks) an interrupt request caused by
the zero-crossing interrupt request flag, as shown in table 14.
24
0
Timer B Interrupt Mask
Timer C Interrupt Request Flag
Timer C Interrupt Mask
Zero-Crossing Interrupt Request Flag
Interrupt Request
Enabled
Disabled (Masked)
Interrupt Request
No
Yes
Interrupt Request
Enabled
Disabled (Masked)
Interrupt Request
No
Yes