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Electronics America Computer Hardware User Manual

ManualsBrandsNEC ManualsComputer HardwarePD78212
41424344454647484950
14
µ
PD78214 Sub-Series
(4) 74-pin plastic QFP (20 × 20 mm)
Caution The symbols enclosed in parentheses indicate that the corresponding pins, not used in PROM programming mode, shall be handled
as follows:
L : Connect the corresponding pin independently to V
SS
, through a 10-kΩ resistor.
G : Connect the corresponding pin to V
SS
.
Open : Leave the corresponding pin unconnected.
Remark The NC pins are not connected inside the chip.
★
CE
A7
(Open)
A6
A5
A4
A3
NC
A2
A1
A0
NC
(Open)
(L)
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
A8
D7
D6
D5
D4
D3
D2
V
SS
IC
D1
D0
(Open)
NC
P20/NMI
A9
(L)
A10
A11
A12
A13
A14
(G)
V
SS
VSS
(G)
(Open)
RESET
NC
OE
NC
VPP
VDD
VDD
NC
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
PD78P214GJ-5BJ
PD78P214GJ-×××-5BJ
µ
µ
(G)
(G)
(Open)
(L)
(L)
(Open)
(L)
(L)
74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57