NEC uPD78056Y User Manual
53
CHAPTER 2 OUTLINE (
µ
PD78054Y Subseries)
(2) PROM programming mode
• 80-pin plastic QFP (14
×
14 mm, Resin thickness: 1.4 mm)
µ
PD78P058YGC-8BT
• 80-pin ceramic WQFN (14
×
14 mm)
µ
PD78P058YKK-T
Cautions 1. (L)
: Connect individually to V
SS
via a pull-down resistor.
2. V
SS
: Connect to the ground.
3. RESET : Set to the low level.
4. Open
: Leave this pin unconnected.
A0 to A16
: Address Bus
RESET
: Reset
CE
: Chip Enable
V
DD
: Power Supply
D0 to D7
: Data Bus
V
PP
: Programming Power Supply
OE
: Output Enable
V
SS
: Ground
PGM
: Program
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
V
SS
RESET
D7
D6
D5
D4
D3
D2
D1
D0
D6
D5
D4
D3
D2
D1
D0
CE
V
SS
V
DD
(L)
Open
V
PP
(L)
Open
V
DD
PGM
(L)
A9
A2
A3
A4
A5
A6
A7
A8
A16
A10
A11
A12
A13
V
SS
A14
A15
OE
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
(L)
(L)
(L)
(L)
(L)
V
DD
A0
A1
A1
(L)
(L)
(L)