HD4074329S Renesas Electronics America, HD4074329S Datasheet - Page 65

• 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

LCD Control Register (LCR: $013): Three-bit write-only register which controls LCD blanking, the
turning on and off of the liquid-crystal display’s power supply division resistor, and display in watch and
subactive modes, as shown in table 29.
Blank/display
Blank:
Display:
Power switch on/off
Off: The power switch is off.
On: The power switch is on and V
Watch/subactive mode display
Off: In watch and subactive modes, all common and segment pins are grounded and the liquid-crystal
On: In watch and subactive modes, LCD RAM data is output as segment signals.
80
81
82
83
84
85
86
87
88
89
90
91
SEG10
SEG11
SEG12
power switch is turned off.
COM4
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
Bit 3
SEG10
SEG11
SEG12
COM3
Figure 39 Configuration of LCD RAM Area (for Dual-Port RAM)
Segment signals are turned off, regardless of LCD RAM data setting.
LCD RAM data is output as segment signals.
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
Bit 2
SEG10
SEG11
SEG12
COM2
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
Bit 1
SEG10
SEG11
SEG12
COM1
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
Bit 0
1
is V
CC
$050
$051
$052
$053
$054
$055
$056
$057
$058
$059
$05A
$05B
.
100
101
102
103
92
93
94
95
96
97
98
99
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
COM4
Bit 3
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
COM3
Bit 2
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
COM2
Bit 1
HD404328 Series
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
COM1
Bit 0
$05C
$05D
$05E
$05F
$060
$061
$062
$063
$064
$065
$066
$067
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