參數(shù)資料
型號: HD40A4669
廠商: Hitachi,Ltd.
英文描述: Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
中文描述: 低電壓如同在微機(jī)芯片的DTMF產(chǎn)生電路(帶雙音多頻電路的低電壓微計(jì)算機(jī))
文件頁數(shù): 140/142頁
文件大?。?/td> 894K
代理商: HD40A4669
HD404669 Series
140
Notes on ROM Out
Please note the following when ordering HD404668, HD4046612, HD40A4668, or HD40A46612 ROM.
On ROM out, fill the ROM area indicated below with 1s to create the same data size as a 16-kword version
(HD404669, HD40A4669). A 16-kword data size is required to change ROM data to mask manufacturing
data since the program used is for a 16-kword version.
This limitation applies when using an EPROM or a data base.
$0000
$000F
$0010
$003F
$0040
$1FFF
$2000
$3FFF
8-kword ROM versions:
HD404668, HD40A4668
Write all-1 data to addresses
$2000 to $3FFF.
Vector addresses
Zero page
subroutine area
(64 words)
Program and pattern
area
(8,192 words)
$0000
$000F
$0010
$003F
$0040
$2FFF
$3000
$3FFF
12-kword ROM versions:
HD4046612, HD40A46612
Write all-1 data to addresses
$3000 to $3FFF.
Vector addresses
Zero page
subroutine area
(64 words)
Program and pattern
area
(12,288 words)
Not used
Note: Write all-1 data in shaded areas.
Not u
相關(guān)PDF資料
PDF描述
HD404668 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
HD404669 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
HD407A4669 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
HD404719FS Five timer/counters
HD404439FS Five timer/counters
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