HD4074329S Renesas Electronics America, HD4074329S Datasheet - Page 12

• 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
Memory Map
ROM Memory Map
The ROM memory map is shown in figure 1 and described below.
Vector Address Area ($0000–$000F): Reserved for JMPL instructions that branch to the start addresses
of the reset and interrupt routines. After MCU reset or an interrupt, program execution continues from the
vector address.
Zero-Page Subroutine Area ($0000–$003F): Reserved for subroutines. The program branches to a
subroutine in this area in response to the CAL instruction.
Pattern Area ($0000–$0FFF): Contains ROM data that can be referenced with the P instruction.
Program Area (HD404324, HD404324U: $0000-$0FFF; HD404326, HD404326U: $0000-$17FF;
HD404328, HD404328U: $0000–$1FFF; HD4074329, HD4074329U: $0000–$3FFF): Used for program
coding.
8
16383
4095
4096
6143
6144
8191
8192
15
16
63
64
0
HD4074329U program
HD404326U program
HD404328U program
HD404324U program
(16,384 words)
Zero-page subroutine
HD4074329,
(6,144 words)
(8,192 words)
(4,096 words)
(4,096 words)
HD404326,
HD404328,
HD404324,
Vector address
Pattern
(64 words)
Figure 1 ROM Memory Map
$0000
$000F
$0010
$003F
$0040
$0FFF
$1000
$17FF
$1800
$1FFF
$2000
$3FFF
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
(jump to A/D, serial routines)
(jump to timer A routine)
(jump to timer B routine)
(jump to timer C routine)
(jump to reset routine)
(jump to INT
(jump to INT
(jump to ZCD routine)
JMPL instruction
JMPL instruction
JMPL instruction
JMPL instruction
JMPL instruction
JMPL instruction
JMPL instruction
JMPL instruction
0
1
routine)
routine)
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
$000A
$000B
$000C
$000D
$000E
$000F