M3850 RENESAS [Renesas Technology Corp], M3850 Datasheet - Page 4

• Manufacturer Part Number: M3850
• Description: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
• Manufacturer: RENESAS [Renesas Technology Corp]

Fig. 3 Part numbering
3850 Group (Spec.A)
PART NUMBERING
Rev.2.10
REJ03B0093-0210
Product name
2005.11.14
M3850 3
page 4 of 86
M 4
A– XXX
SP
RAM size
0
1
2
3
4
– : standard
Omitted in flash memory version.
H–: Partial specification changed version
A–: High-speed version
Package type
SP : PRDP0042BA-A
FP : PRSP0042GA-B
ROM number
Omitted in flash memory version.
The first 128 bytes and the last 2 bytes of ROM are reserved areas ; they
cannot be used as a user’s ROM area.
However, they can be programmed or erased in the flash memory version,
so that the users can use them.
Memory type
M : Mask ROM version
F : Flash memory version
ROM/Flash memory size
1
2
3
4
5
6
7
8
: 192 bytes
: 256 bytes
: 384 bytes
: 512 bytes
: 640 bytes
: 4096 bytes
: 8192 bytes
: 12288 bytes
: 16384 bytes
: 20480 bytes
: 24576 bytes
: 28672 bytes
: 32768 bytes
5
6
7
8
9
: 768 bytes
: 896 bytes
: 1024 bytes
: 1536 bytes
: 2048 bytes
9
A
B
C
D
E
F
: 36864 bytes
: 40960 bytes
: 45056 bytes
: 49152 bytes
: 53248 bytes
: 57344 bytes
: 61440 bytes