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PDF UPD78217A Data sheet ( Hoja de datos )
| Número de pieza | UPD78217A | |
| Descripción | 8-BIT SINGLE-CHIP MICROCONTROLLER | |
| Fabricantes | NEC | |
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD78217A,78218A
8-BIT SINGLE-CHIP MICROCONTROLLER
DESCRIPTION
The µPD78217A and 78218A are members of the 78K/II series of microcontrollers featuring a high-speed high-
performance CPU. The µPD78217A and 78218A are based on the µPD78213 and 78214, and feature increased memory
capacity and added functions, such as a timer/counter and macro servicing.
Functions are described in detail in the following User’s Manuals, which should be read when carrying out design
work.
µPD78218A Subseries User’s Manual: Hardware (IEU-1313)
78K/II Series User’s Manual: Instruction (IEU-1311)
FEATURES
• Upper compatibility with µPD78214 subseries (pin-compatible)
• High-speed instruction execution (at 12 MHz): 333 ns (µPD78218A), 500 ns (µPD78217A)
• On-chip high-performance interrupt controller
• On-chip A/D converter: 8 bits × 8 channels
• Number of I/O pins: 54 (µPD78218A), 36 (µPD78217A)
• Real-time output ports: 8 bits × 1 channel or 4 bits × 2 channels
• Serial interface: 2 channels
• Timer/counter: 16 bits × 1 channel and 8 bits × 3 channels
APPLICATION FIELDS
Printers, typewriters, OA equipment such as plain paper copiers (PPCs) and faxes, electronic music instruments,
inverters, cameras, etc.
ORDERING INFORMATION
Part Number
µPD78217ACW
µPD78217AGC-AB8
µPD78218ACW-×××
µPD78218AGC-×××-AB8
Package
64-pin plastic shrink DIP (750 mil)
64-pin plastic QFP (14 x 14 mm)
64-pin plastic shrink DIP (750 mil)
64-pin plastic QFP (14 x 14 mm)
On-Chip ROM
None
None
32K
32K
On-Chip RAM
1024
1024
1024
1024
Remark ××× is the ROM code suffix.
Document No. IC-2748E
(O. D. No. IC-8131E)
Date Published April 1995 P
Printed in Japan
The information in this document is subject to change without notice.
The mark 5 shows revised points.
©
19921
1 page  
64-pin plastic QFP
µPD78217A, 78218A
P64/RD
P63/A19
P62/A18
P61/A17
P60/A16
RESET
X2
X1
VSS
P57/A15
P56/A14
P55/A13
P54/A12
P53/A11
P52/A10
P51/A9
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
1 48
2 47
3 46
4 45
5 44
6 43
7 42
8 41
9 40
10 39
11 38
12 37
13 36
14 35
15 34
16 33
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
P71/AN1
P72/AN2
P73/AN3
P74/AN4
P75/AN5
AVREF
AVSS
VDD
EA
P33/SO/SB0
P32/SCK
P31/TXD
P30/RXD
P27/SI
P26/INTP5
P25/INTP4/ASCK
5
5 Page 
µPD78217A, 78218A
2. PIN FUNCTIONS
2.1 PORTS
Pin Name
I/O
Alternate
Function
Function
P00 to P07
P20
P21
P22
P23
P24
P25
P26
P27
P30
P31
P32
P33
P34 to P37
P40 to
P47Note
P50 to
P57Note
P60 to P63
P64Note
P65Note
P66
P67
P70 to P75
Output
Input
Input/
output
Input/
output
NMI
INTP0
INTP1
INTP2/CI
INTP3
INTP4/ASCK
INTP5
SI
RxD
TxD
SCK
SO/SB0
TO0 to TO3
AD0 to AD7
Input/
output
A8 to A15
Output
Input/
output
Input
A16 to A19
RD
WR
WAIT/AN6
REFRQ/AN7
AN0 to AN5
Port 0 (P0):
Established as a real-time output port (4 bits × 2)
Direct drive of transistors capability
Port 2 (P2):
P20 cannot be used as a general-purpose port. (Non-maskable interrupt)
However, the input level can be confirmed in the interrupt routine.
The connection of the on-chip pull-up resistor can be specified as a 6-bit unit for P22
to P27 by software.
Port 3 (P3):
The input/output specifiable bit-wise.
Input mode pins specifiable for on-chip pull-up resistor connection as a batch by
software.
Port 4 (P4):
The input/output specifiable as an 8-bit batch.
The connection of the on-chip pull-up resistor specifiable as an 8-bit batch by
software.
LED direct drive capability.
Port 5 (P5):
The input/output specifiable bit-wise.
Input mode pins specifiable for on-chip pull-up resistor connection as a batch by
software.
LED direct drive capability.
Port 6 (P6):
P64 to P67 enables to specify the input/output bit-wise.
The connection of the on-chip pull-up resistor to input mode pins can be specified
as a batch for P64 to P67 by software.
Port 7 (P7)
Note In case of the µPD78217A, these cannot be used as ports.
11
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