HD4074329S Renesas Electronics America, HD4074329S Datasheet - Page 27

• 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

External Interrupt Masks (IM0: $000, Bit 3; IM1: $001, Bit 1): Prevent (mask) interrupt requests
caused by the corresponding external interrupt request flags, as shown in table 6.
Table 6
IM0, IM1
0
1
Timer A Interrupt Request Flag (IFTA: $001, Bit 2): Set by overflow output from timer A, as shown
in table 7.
Table 7
IFTA
1
Timer A Interrupt Mask (IMTA: $001, Bit 3): Prevents (masks) an interrupt request caused by the
timer A interrupt request flag, as shown in table 8.
Table 8
IMTA
1
Timer B Interrupt Request Flag (IFTB: $002, Bit 0): Set by overflow output from timer B, as shown in
table 9.
Table 9
IFTB
0
1
0
0
External Interrupt Masks
Timer A Interrupt Request Flag
Timer A Interrupt Mask
Timer B Interrupt Request Flag
Interrupt Request
Enabled
Disabled (Masked)
Interrupt Request
No
Yes
Interrupt Request
Enabled
Disabled (Masked)
Interrupt Request
No
Yes
HD404328 Series
23