4524 Datasheet, PDF (157/161 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4524 Group
BUILT-IN PROM VERSION
In addition to the mask ROM versions, the 4524 Group has the
One Time PROM versions whose PROMs can only be written to
and not be erased.
The built-in PROM version has functions similar to those of the
mask ROM versions, but it has PROM mode that enables writing to
built-in PROM.
Table 25 shows the product of built-in PROM version. Figure 75
shows the pin configurations of built-in PROM versions.
The One Time PROM version has pin-compatibility with the mask
ROM version.
Table 25 Product of built-in PROM version
Part number
PROM size
(✕ 10 bits)
M34524EDFP
16384 words
RAM size
(✕ 4 bits)
512 words
Package
64P6N-A
ROM type
One Time PROM [shipped in blank]
PIN CONFIGURATION (TOP VIEW)
VLC3/SEG0
VLC2/SEG1
VLC1/SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
S E G1 0
SEG11
S E G1 2
S E G1 3
SEG14
S E G1 5
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
49
32
50
31
51
30
52
29
53
28
54
27
55
56
M34524EDFP
26
25
57
24
58
23
59
22
60
21
61
20
62
19
63
18
64
17
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
D4/SIN
D5/SOUT
D6/SCK
CNVSS
VDCE
XCIN
XCOUT
VD D
VSS
XOUT
XIN
RESET
D7/CNTR0
C/CNTR1
D8/INT0
D9/INT1
Outline 64P6N-A
Fig. 75 Pin configuration of built-in PROM version
Rev.2.00 Jul 27, 2004 page 157 of 159
REJ03B0091-0200Z