參數(shù)資料
型號: M34554EDFP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PQFP64
封裝: 14 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-64
文件頁數(shù): 40/138頁
文件大?。?/td> 1082K
代理商: M34554EDFP
Rev.3.00
Aug 06, 2004
page 134 of 136
REJ03B0043-0300Z
4554 Group
Table 25 Product of built-in PROM version
PROM size
( 10 bits)
16384 words
RAM size
( 4 bits)
512 words
M34554EDFP
One Time PROM [shipped in blank]
64P6N-A
BUILT-IN PROM VERSION
In addition to the mask ROM versions, the 4554 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 61
shows the pin configurations of built-in PROM versions.
The One Time PROM version has pin-compatibility with the mask
ROM version.
ROM type
Package
Part number
Fig. 61 Pin configuration of built-in PROM version
PIN CONFIGURATION (TOP VIEW)
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
SEG0/VLC3
SEG1/VLC2
SEG2/VLC1
SEG3
SEG4
SEG5
SEG6
M34554EDFP
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
D4
D5
D6
CNVSS
VDCE
XCIN
XCOUT
VDD
VSS
XOUT
XIN
RESET
D7/CNTR0
C/CNTR1
D8/INT0
D9/INT1
COM
0
COM
1
COM
2
COM
3
P0
0
P0
1
P0
2
P0
3
P1
0
P1
1
P1
2
P1
3
D
0
D
1
D
2
D
3
SEG
16
SEG
17
SEG
18
SEG
19
SEG
20
SEG
21
SEG
22
SEG
23
SEG
24
/P3
3
SEG
25
/P3
2
SEG
26
/P3
1
SEG
27
/P3
0
SEG
28
/P2
3
SEG
29
/P2
2
SEG
30
/P2
1
SEG
31
/P2
0
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
123456789
10 11 12 13 14 15 16
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