4570 Datasheet, PDF (58/69 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS
4570 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
BUILT-IN PROM VERSION
In addition to the mask ROM version, the 4570 Group has the
programmable ROM version software compatible with mask
ROM. The One Time PROM version has PROM which can only
be written to and not be erased.
The built-in PROM version has functions similar to those of the
mask ROM version, but it has a PROM mode that enables writing
to built-in PROM.
Table 16 Product of built-in PROM version
Product
M34570E8FP
M34570EDFP
PROM size
(! 10 bits)
8192 words
16384 words
RAM size
(! 4 bits)
128 words
128 words
Table 16 shows the product of built-in PROM version. Figure 35
shows the pin configurations of built-in PROM version. The One
Time PROM version has pin-compatibility with the mask ROM
version.
Package
36P2R-A
36P2R-A
ROM type
One Time PROM
PIN CONFIGURATION (TOP VIEW)
D2
1
D3
2
D4
3
D5
4
D6
5
D7
6
D8
7
D9/TOUT
8
P20
9
P21/INT
10
RESET
11
CNVSS
12
XOUT
13
XIN
14
VSS
15
VDCE
16
VDD
17
CARR
18
36
D1
35
D0
34
P13
33
P12
32
P11
31
P10
30
P03
29
P02
28
P01
27
P00
26
P43
25
P42
24
P41
23
P40
22
P33
21
P32
20
P31
19
P30
Outline 36P2R-A
Fig. 35 Pin configuration of built-in PROM version
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