UPD75P068CU 반도체 회로 부품 판매점
4 BIT SINGLE-CHIP MICROCOMPUTER
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 NEC |
DATA SHEET
MOS INTEGRATED CIRCUIT
µPD75P068
4 BIT SINGLE-CHIP MICROCOMPUTER
The µPD75P068 is produced by replacing the internal mask ROM of the µPD75068 with a one-time PROM
in which data can be written once.
The following user's manual describes the details of the functions of the µPD75P068. Be sure to read it
before designing an application system.
µPD75068 User's Manual: IEU-1366
FEATURES
• Compatible with the µPD75068
• Can be replaced with the µPD75068 containing mask ROM on a full-production basis.
• Internal one-time PROM: 8064 words × 8 bits
• Internal RAM: 512 words × 4 bits
• Internal pull-up resistors can be specified with software: Ports 0 to 3 and 6
• N-ch open-drain input-output: Ports 4 and 5
• Can operate at low voltage: VDD = 2.7 to 6.0 V
ORDERING INFORMATION
Part number
µPD75P068CU
µPD75P068GB-3B4
Package
42-pin plastic shrink DIP (600 mil)
44-pin plastic QFP (Square 10 mm)
Quality grade
Standard
Standard
Caution The µPD75P068 is not provided with mask-selected pull-up resistors.
Please refer to "Quality Grades 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-3290A
(O.D. No. IC-8623A
Date Published April 1994 P
Printed in Japan
The information in this document is subject to change without notice.
Major changes in this revision are indicated by stars (5) in the margins.
© NEC CORPORATIO1N9910993
PIN CONFIGURATION (TOP VIEW)
• 42-pin plastic shrink DIP
XT1
XT2
RESET
X1
X2
MD3/P33
MD2/P32
MD1/P31
MD0/P30
AVSS
AN7/KR3/P63
AN6/KR2/P62
AN5/KR1/P61
AN4/KR0/P60
AN3/P113
AN2/P112
AN1/P111
AN0/P110
AVREF
VPP
VDD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
• 44-pin plastic QFP
µPD75P068
42 VSS
41 P40
40 P41
39 P42
38 P43
37 P50
36 P51
35 P52
34 P53
33 P00/INT4
32 P01/SCK
31 P02/SO/SB0
30 P03/SI/SB1
29 P10/INT0
28 P11/INT1
27 P12/INT2
26 P13/ TI0
25 P20/PTO0
24 P21
23 P22/PCL
22 P23/BUZ
INT2/P12
INT1/P11
INT0/P10
SB1/SI/P03
SB0/SO/P02
SCK /P01
INT4/P00
P53
P52
P51
P50
44 43 42 41 40 39 38 37 36 35 34
1 33
2 32
3 31
4 30
5 29
6
µPD75P068GB-3B4
28
7 27
8 26
9 25
10 24
11 23
12 13 14 15 16 17 18 19 20 21 22
P112 /AN2
P113/AN3
P60/KR0/AN4
P61/KR1/AN5
P62/KR2/AN6
P63/KR3/AN7
AVSS
P30/MD0
P31/MD1
P32/MD2
P33/MD3
2
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제조업체: NEC
( nec )
UPD75P068CU microcomputer
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