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PDF UPD78F0988AGC-8BS Data sheet ( Hoja de datos )
| Número de pieza | UPD78F0988AGC-8BS | |
| Descripción | 8-BIT SINGLE-CHIP MICROCONTROLLERS | |
| Fabricantes | NEC | |
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD78F0988A, 78F0988A(A)
8-BIT SINGLE-CHIP MICROCONTROLLERS
DESCRIPTION
The µPD78F0988A and 78F0988A(A) are products in the µPD780988 Subseries in the 78K/0 Series that have flash
memory in the place of the internal ROM of the µPD780988. Flash memory can be written or erased electrically with
the device mounted on the board. Therefore, the µPD78F0988A and µPD78F0988A(A) are ideal for evaluation in
system development, small-scale production, or systems likely to be upgraded frequently.
Detailed function descriptions are provided in the following user’s manuals. Be sure to read them before
designing.
µPD780988 Subseries User’s Manual: U13029E
78K/0 Series Instruction User’s Manual: U12326E
FEATURES
• Pin-compatible with mask ROM version (except VPP pin)
• Flash memory: 60 KBNote 1
• Internal high-speed RAM: 1024 bytes
• Internal expansion RAM: 1024 bytesNote 2
• Operable in the same supply voltage range as the mask ROM version (VDD = 4.0 to 5.5 V)
Notes 1. The capacity of the flash memory can be changed with the internal memory size switching register (IMS).
2. The capacity of the internal expansion RAM can be changed with the internal expansion RAM size
switching register (IXS).
Remark For the differences between the flash memory versions and the mask ROM versions, refer to
1. DIFFERENCES BETWEEN µPD78F0988A AND MASK ROM VERSIONS.
ORDERING INFORMATION
Part Number
µPD78F0988ACW
µPD78F0988AGC-AB8
µPD78F0988AGC-8BS
µPD78F0988AGC(A)-AB8
µPD78F0988AGC(A)-8BS
Package
64-pin plastic SDIP (19.05 mm (750))
64-pin plastic QFP (14 × 14)
64-pin plastic LQFP (14 × 14)
64-pin plastic QFP (14 × 14)
64-pin plastic LQFP (14 × 14)
Quality Grade
Standard
(for general electrical equipment)
Standard
(for general electrical equipment)
Standard
(for general electrical equipment)
Special
(for high-reliability electrical equipment)
Special
(for high-reliability electrical equipment)
For details of the quality grade and its application fields, refer to Quality Grades on NEC Semiconductor
Devices (C11531E).
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. U15801EJ1V0DS00 (1st edition)
Date Published October 2001 N CP(K)
Printed in Japan
© 2001
1 page  
µPD78F0988A, 78F0988A(A)
PIN CONFIGURATION (TOP VIEW)
• 64-Pin Plastic SDIP (19.05 mm (750))
µPD78F0988ACW
P40/AD0
P41/AD1
P42/AD2
P43/AD3
P44/AD4
P45/AD5
P46/AD6
P47/AD7
P50
P51/SCK
P52/SI
P53/SO
P54/TI000/TO00/INTP4
P55/TI010/INTP5
P56/TI001/TO01/INTP6
P57/TI011/INTP7
VSS0
VDD0
TO70
TO71
TO72
TO73
TO74
TO75
P20/RxD00
P21/TxD00
P22/RxD01
P23/TxD01
P24/TI50/TO50
P25/TI51/TO51
P26/TI52/TO52
VDD1
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
64 P67/ASTB
63 P66/WAIT
62 P65/WR
61 P64/RD
60 P37/RTP7
59 P36/RTP6
58 P35/RTP5
57 P34/RTP4
56 P33/RTP3
55 P32/RTP2
54 P31/RTP1
53 P30/RTP0
52 P01/INTP1
51 P00/INTP0/TOFF7
50 VSS1
49 X1
48 X2
47 TEST
46 P03/INTP3/ADTRG
45 P02/INTP2
44 RESET
43 AVDD
42 AVREF
41 P10/ANI0
40 P11/ANI1
39 P12/ANI2
38 P13/ANI3
37 P14/ANI4
36 P15/ANI5
35 P16/ANI6
34 P17/ANI7
33 AVSS
Cautions 1. In the normal operation mode, connect the VPP pin directly to VSS0.
2. In the flash memory writing mode, connect the VPP pin to VSS0 via a 10 kΩ pull-down resistor.
3. The 64-pin plastic SDIP (19.05 mm (750)) package is not provided for special quality grade
products.
Remark
When the µPD78F0988A and 78F0988A(A) are used in applications where the noise generated inside
the microcontroller needs to be reduced, the implementation of noise reduction measures, such as
supplying voltage to VDD0 and VDD1 individually and connecting VSS0 and VSS1 to different ground lines,
is recommended.
Data Sheet U15801EJ1V0DS
5
5 Page 
µPD78F0988A, 78F0988A(A)
2. DIFFERENCES BETWEEN µPD78F0988A AND µPD78F0988
The differences between the µPD78F0988A and µPD78F0988 (old version) are shown in Table 2-1.
Table 2-1. Differences Between µPD78F0988A and µPD78F0988
Item
Part Number
Flash memory area
µPD78F0988A
Two areas
0: 0 to 1FFFH
1: 2000H to EFFFH
Quality grade
• Standard
• Special (64-pin plastic QFP (14 × 14),
64-pin plastic LQFP (14 × 14))
µPD78F0988 (Old Version)
Three areas
0: 0 to 1FFFH
1: 2000H to 7FFFH
2: 8000H to EFFFH
• Standard
Data Sheet U15801EJ1V0DS
11
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