Prom Programming Mode; Pp ≥ +5 V/+12.5 V, Reset = L) - NEC uPD784038 Series User Manual

1.3.2 PROM Programming Mode (V
• 80-pin plastic QFP (14 × × × × × 14, 1.4 mm thick)
µ PD78P4038GC-8BT, 78P4038YGC-8BT
• 80-pin plastic TQFP (fine pitch) (12 × × × × × 12)
µ PD78P4038GK-9EU, 78P4038YGK-9EU
(L)
Open
RESET
V
DD
Open
(L)
V
SS
D0
D1
D2
D3
D4
D5
D6
D7
(L)
Caution L : Connect to V
V : Connect to ground.
SS
Open : Do not make any connection.
RESET : Drive low.
V : Programming Power Supply
PP
RESET : Reset
A0 to A16 : Address Bus
D0 to D7 : Data Bus
CE : Chip Enable
48
CHAPTER 1 GENERAL
≥
+5 V/+12.5 V, RESET = L)
PP
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
individually via a 10 kΩ pull-down resistor.
SS
PGM : Program
OE
V
DD
V
SS
User's Manual U11316EJ4V1UD
: Output Enable
: Power Supply
: Ground
60
59
58 Open
57
56
55 V
DD
54 (L)
53
52
51
50 Open
49
48
47
46 V
pp
45 V
SS
44 Open
43 A0
42 A1
41 A2