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Número de pieza | UPD178076GF | |
Descripción | 8-BIT SINGLE-CHIP MICROCONTROLLER | |
Fabricantes | NEC | |
Logotipo | ||
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No Preview Available ! DATA SHEET
MOS INTEGRATED CIRCUIT
µPD178076,178078,178096,178098
8-BIT SINGLE-CHIP MICROCONTROLLER
DESCRIPTION
The µPD178076, 178078, 178096, and 178098 are 8-bit single-chip CMOS microcontrollers containing hardware
for digital tuning systems.
These microcontrollers employ a 78K/0 series architecture CPU and allow easy access to internal memories at
high speed and easy control of peripheral hardware units. The high-speed 78K/0 series instructions are ideal for
system control.
As peripheral hardware, a prescaler, PLL frequency synthesizer, and frequency counter for digital tuning systems
are provided, as well as many I/O ports, timers, A/D converter, serial interface, and a power-ON clear circuit. In
addition, the µPD178076 and 178078 have an asynchronous serial interface (UART) mode, and the µPD178096 and
178098 have an IEBusTM controller.
Moreover, a flash memory model, the µPD178F098, that operates in the same supply voltage range as the mask
ROM models, and various development tools are also under development.
For the detailed functional description, refer to the following User’s Manuals:
µPD178078, 178098 Subseries User’s Manual : U12790E
78K/0 Series User’s Manual - Instruction : U12326E
FEATURES
• High-capacity ROM and RAM
Part Number
Item Program Memory (ROM)
Data Memory
Internal high-speed RAM Internal buffer RAM Internal extension RAM
µPD178076, 178096
48K bytes
µPD178078, 178098
60K bytes
• Instruction cycle:
0.32 µs (with crystal resonator of fX = 6.3 MHz)
• Many internal hardware units
General-purpose I/O ports, A/D converter, serial
interface (UART mode: µPD178076 and 178078
only), IEBus controller (µPD178096 and 178098
only), timers, frequency counter, power-ON clear
circuit
1024 bytes
32 bytes
1024 bytes
2048 bytes
• Hardware for PLL frequency synthesizer
dual modulus prescaler, programmable divider,
phase comparator, charge pump
• Vectored interrupt sources
• µPD178076, 178078: 22
• µPD178096, 178098: 21
• Supply voltage
:VDD = 4.5 to 5.5 V (during PLL and CPU
operations)
:VDD = 3.5 to 5.5 V (during CPU operation)
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. U12885EJ3V0DS00
Date Published June 2000 N CP(K)
Printed in Japan
The mark shows major revised points.
©
1997, 2000
1 page µPD178076, 178078, 178096, 178098
Item
Vectored
Maskable
interrupt
source
Non-maskable
Software
PLL Division mode
frequency
synthesizer
Reference
frequency
Charge pump
Phase
comparator
Frequency counter
Standby function
Reset
Supply voltage
Package
µPD178076
µPD178078
µPD178096
Internal : 13
Internal : 12
External: 8
External: 8
Internal: 1
1
2 types
• Direct division mode (VCOL pin)
• Pulse swallow mode (VCOL and VCOH pins)
Seven types selectable in software (1, 3, 9, 10, 12.5, 25, 50 kHz)
(2/2)
µPD178098
Error out output: 2 pins
Unlock detectable in software
Frequency measurement
• AMIFC pin: For 450-kHz counting
• FMIFC pin: For 450-kHz/10.7-MHz counting
• HALT mode
• STOP mode
• Reset by RESET pin
• Internal reset by watchdog timer
• Reset by power-ON clear circuit
• Detection of less than 4.5 VNote (Reset does not occur, however.)
• Detection of less than 3.5 VNote (during CPU operation)
• Detection of less than 2.3 VNote (in STOP mode)
• VDD = 4.5 to 5.5 V (during CPU, PLL operation)
• VDD = 3.5 to 5.5 V (during CPU operation)
• 100-pin plastic QFP (14 × 20)
Note These voltages are the maximum values. In practice, the chip may be reset at voltages lower than these.
Data Sheet U12885EJ3V0DS00
5
5 Page µPD178076, 178078, 178096, 178098
1. PIN FUNCTION LIST
1.1 Port Pins (1/2)
Pin Name
P00-P07
I/O
I/O
P10-P17
P20
P21
P22
P23
P24
P25
P26
P27
P30
P31
P32
P33
P34
P35
P36
P37
P40-47
Input
I/O
I/O
I/O
P50-P57
I/O
P60-P67
I/O
P70
P71
P72
P73
P74
P75
P76, P77
I/O
Function
Port 0.
8-bit I/O port.
Can be set in input or output mode in 1-bit units.
Port 1.
8-bit input port.
Port 2.
8-bit I/O port.
Can be set in input or output mode in 1-bit units.
Port 3.
8-bit I/O port.
Can be set in input or output mode in 1-bit units.
Port 4.
8-bit I/O port.
Can be set in input or output mode in 1-bit units.
Port 5.
8-bit I/O port.
Can be set in input or output mode in 1-bit units.
Port 6.
8-bit I/O port.
Can be set in input or output mode in 1-bit units.
Port 7.
8-bit I/O port.
Can be set in input or output mode in 1-bit units.
At Reset
Input
Shared by:
INTP0-INTP7
Input
Input
Input
Input
ANI0-ANI7
SI1
SO1
SCK1
STB
BUSY
SI0/SB0/SDA0
SO0/SB1/SDA1
SCK0/SCL
VM45
TO0
TI00
TI01
TI50
TI51
BEEP0
BUZ
–
Input
–
Input
–
Input
SI3
SO3
SCK3
–
RXD0Note 1
TXD0Note 1
–
Data Sheet U12885EJ3V0DS00
11
11 Page |
Páginas | Total 30 Páginas | |
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