UPD75238GJ

Manufacturer Part NumberUPD75238GJ
Description4 BIT SINGLE-CHIP MICROCOMPUTER
ManufacturerNEC [NEC]
UPD75238GJ datasheet
 


1
Page 1
2
Page 2
3
Page 3
4
Page 4
5
Page 5
6
Page 6
7
Page 7
8
Page 8
9
Page 9
10
Page 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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
Page 1/190

Download datasheet (2Mb)Embed
Next
ELECTRON DEVICE
The PD75238 is a single-chip microcomputer which contains a CPU capable of 1-, 4-, and 8-bit data
processing, ROM, RAM, and I/O ports. In addition, it contains a fluorescent display tube (FIP
A/D converter, clock timer, timer/pulse generator capable of 14-bit PWM output, serial interface, and vectored
interrupt function.
In comparison with the PD75217, the PD75238 has larger ROM and RAM capacity and has been enhanced
in such peripheral facilities as the display function of the FIP controller/driver, I/O ports, A/D converter, serial
interface.
The PD75238 finds best use in such applications as timer/tuner of VCRs from advanced type to common
type, configuration of one-chip system control microcomputer, advanced CD player, advanced microwave
ovens, etc.
With the PD75238, the PD75P238, which is a PROM product, and various development tools including
IE-75001-R and assemblers are available. They can be used for evaluation during system development and
small-volume production.
FEATURES
Mass-storage built-in ROM and RAM
• Program memory (ROM) : 32K
• Data memory (RAM)
I/O port: 64 lines (excluding pins dedicated
to FIP)
Minimum instruction execution time:
0.67 s (at 6.0 MHz)
Instruction execution time specification func-
tion to allow a wide range of operating
voltages
Programmable FIP controller/driver contained
• Number of segments : 9 to 24 segments
• Number of digits
ORDERING INFORMATION
Part number
PD75238GJ-
-5BG
Please refer to “Quality Grade on NEC Semiconductor Devices” (Document number IEI-1209) published by NEC
Corporation to know the specification of quality grade on the devices and its recommended applications.
Document No.
IC-2777A
(O.D. No.
IC-8177A)
Date Published
February 1993 P
Printed in Japan
DATA SHEET
MOS INTEGRATED CIRCUIT
4 BIT SINGLE-CHIP MICROCOMPUTER
8-bit A/D converter: 8 channels
8
Enhanced timer/counter function: 5 channels
: 1K
4
8-bit serial interface: 2 channels
Application-oriented interrupt functions
PROM version device:
: 9 to 16 digits
Package
94-pin plastic QFP (20
The information in this document is subject to change without notice.
Major changes in this revision are indicated by stars ( ) in the margins.
PD75238
;
) controller/driver,
PD75P238
Quality grade
20 mm)
Standard
© NEC Corporation 1992