參數(shù)資料
型號: HD40A4639R
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): 131/133頁
文件大?。?/td> 803K
代理商: HD40A4639R
HD404639R Series
131
Notes on ROM Out
Please pay attention to the following items regarding ROM out.
On ROM out, fill the ROM area indicated below with 1s to create the same data size as a 16-kword version
(HD404639R, HD40A4639R). 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.
Vector address
(16 words)
Zero-page subroutine
(64 words)
Pattern & program
(8,192 words)
Not used
ROM 8-kword version:
HD404638R, HD40A4638R
Address $2000–$3FFF
$0000
$000F
$0010
$003F
$0040
$1FFF
$2000
$3FFF
Fill this area with 1s
相關(guān)PDF資料
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