5
3850 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
GROUP EXPANSION
Mitsubishi plans to expand the 3850 group as follows:
Memory Type
Support for mask ROM, One Time PROM, and EPROM versions.
Memory Size
ROM/PROM size ................................................... 8K to 24K bytes
RAM size .............................................................. 512 to 640 bytes
Packages
42P4B..........................................42-pin shrink plastic molded DIP
42P2R-A ............................................ 42-pin plastic molded SSOP
42S1B-A ................... 42-pin shrink ceramic DIP(EPROM version)
Fig. 4 Memory expansion plan
Currently planning products are listed below.
RAM size (bytes)
Remarks
Package
Table 2 Support products
Product name
As of August 1998
8192
(8062)
(P) ROM size (bytes)
ROM size for User in ( )
Memory Expansion Plan
Products under development or planning : the development schedule and specification may be revised without notice.
Planning products may be stopped the development.
M38503M2-XXXSP
M38503M2-XXXFP
M38503M4-XXXSP
M38503E4-XXXSP
M38503E4SP
M38503E4SS
M38503M4-XXXFP
M38503E4-XXXFP
M38503E4FP
M38504M6-XXXSP
M38504E6-XXXSP
M38504E6SP
M38504E6SS
M38504M6-XXXFP
M38504E6-XXXFP
M38504E6FP
512
42P2R-A
42P4B
Mask ROM version
Mask ROM version
Mask ROM version
One Time PROM version
One Time PROM version (blank)
EPROM version
(stock only replaced by M38504E6SS)
Mask ROM version
One Time PROM version
One Time PROM version (blank)
Mask ROM version
16384
(16254)
42P2R-A
48K
ROM size (bytes)
32K
28K
24K
20K
16K
12K
8K
128
192
256
RAM size (bytes)
384
512
640
768
896
1024
M38503M4/E4
Under development
M38504M6/E6
Mass production
M38503M2
Mass production
42P4B
512
42S1B-A
42P4B
One Time PROM version
One Time PROM version (blank)
EPROM version
Mask ROM version
One Time PROM version
One Time PROM version (blank)
32768
(32638)
42P2R-A
640
42S1B-A