HD4074329S Renesas Electronics America, HD4074329S Datasheet - Page 33

• 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

processor clocks
Oscillator: Active
Peripheral clocks: Active
All other clocks: Stopped
RESET
Reset MCU
= 1?
Restart
Yes
Standby
No
= 0?
= 1?
IM0
IF0
Yes
Yes
No
No
(SBY
only)
= 0?
= 1?
IM1
IF1
Yes
Yes
Execute next
No
No
instruction
Figure 11 MCU Operation Flowchart
IMTA
IFTA
= 0?
= 1?
Yes
Yes
Oscillator: Stopped
Sub-oscillator: Active
Peripheral clocks: Stopped
All other clocks: Stopped
No
No
(SBY
only)
No
IMTB
IFTB
= 1?
= 0?
Yes
Yes
Accept interrupt
Watch
Execute next
instruction
No
No
IE = 1?
IM = 0,
(SBY
only)
IF = 1,
IMTC
IFTC
= 1?
= 0?
Yes
Yes
Yes
No
No
(SBY
only)
IMZC
IFZC
= 1?
= 0?
Yes
Yes
processor clocks
No
No
Restart
(SBY
only)
HD404328 Series
IMAD
IFAD
= 0?
= 1?
Yes
Yes
No
No
(SBY
only)
= 1?
= 0?
IMS
IFS
Yes
Yes
No
No
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