參數(shù)資料
型號: HD40A4054
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer(4位單片微計算機)
中文描述: 4位單片機(4位單片微計算機)
文件頁數(shù): 80/101頁
文件大?。?/td> 610K
代理商: HD40A4054
HD404054 Series/HD404094 Series
80
Programming the Built-In PROM
The MCU’s built-in PROM is programmed in PROM mode. PROM mode is set by pulling
TEST
,
M
0
, and
M
1
low, and
RESET
low as shown in figure 63. In PROM mode, the MCU does not operate, but it can be
programmed in the same way as any other commercial 27256-type EPROM using a standard PROM
programmer and an 42-to-28-pin socket adapter. Recommended PROM programmers and socket adapters
of the HD4074054 and HD4074094 are listed in table 27.
Since an HMCS400-series instruction is ten bits long, the HMCS400-series MCU has a built-in conversion
circuit to enable the use of a general-purpose PROM programmer. This circuit splits each instruction into
five lower bits and five upper bits that are read from or written to consecutive addresses. This means that
if, for example, 4-kwords of built-in PROM are to be programmed by a general-purpose PROM
programmer, a 8-kbyte address space ($0000–$7FFF) must be specified.
Address
A
0
to A
14
Data
O
0
to O
7
OE
CE
V
PP
GND
V
CC
V
CC
O
0
to O
7
A
0
to A
14
OE
CE
V
PP
RESET
TEST
M
0
M
1
V
CC
OSC
1
D
2
D
3
HD4074054
HD4074094
Figure 63 PROM Mode Connections
Table 27
Recommended PROM Programmers and Socket Adapters
PROM Programmer
Socket Adapter
Manufacturer
Model Name
Package
Model Name
Manufacturer
DATA I/O Corp.
121B
DP-42S
HS4654ESS01H
Hitachi
AVAL Corp.
PKW-1000
FP-44A
HS4654ESH01H
Hitachi
相關PDF資料
PDF描述
HD40A4358 4-bit HMCS400-Series microcomputer
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相關代理商/技術參數(shù)
參數(shù)描述
HD40A4054H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:HMCS400-series microcomputers designed to increase program productivity with large-capacity memory
HD40A4054S 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:HMCS400-series microcomputers designed to increase program productivity with large-capacity memory
HD40A4081FT 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD40A4081H 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD40A4081S 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller