HD4074329S Renesas Electronics America, HD4074329S Datasheet - Page 54
HD4074329S
Manufacturer Part Number
HD4074329S
Description
MCU 4-Bit HMCS400 CISC 20KB EPROM 3.3V/5V 64-Pin SDIP
Manufacturer
Renesas Electronics America
Datasheet
1.HD4074329S.pdf
(98 pages)
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
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HD404328 Series
TMC
Bit 2
0
1
Pulse Output
The MCU has a built-in pulse output function called BUZZ. The pulse frequency can be selected from the
prescaler S’ s outputs, and the output frequency depends on the state of port mode register C (PMRC:
$012), as shown in table 27. The duty cycle of the pulse output is fixed at 50%. When the pulse output
function is used, the R1
Table 27
PMRC
Bit 1
0
1
50
Port Mode Register C
Bit 1
0
1
0
1
Bit 0
0
1
0
1
3
/BUZZ pin must be specified as BUZZ by PMRC.
Bit 0
0
1
0
1
0
1
0
1
Prescaler Division Ratio
1024
512
256
128
Input Clock Period
2048 t
1024 t
512 t
128 t
32 t
8 t
4 t
2 t
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
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