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PDF UPD78324GJ Data sheet ( Hoja de datos )
| Número de pieza | UPD78324GJ | |
| Descripción | 16/8-BIT SINGLE-CHIP MICROCONTROLLER | |
| Fabricantes | NEC | |
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD78323,78324
16/8-BIT SINGLE-CHIP MICROCONTROLLER
DESCRIPTION
The µPD78324 is a 16/8-bit single-chip microcontroller that incorporates a high-performance 16-bit CPU. The µPD78324
is one of 78K/III series. The internal capacity is significantly increased compared with the conventional µPD78322.
A realtime pulse unit for realtime pulse control required in motor control, an A/D converter, a ROM, and a RAM have been
integrated into one chip.
The µPD78324 incorporates 32K-byte mask ROM and 1024-byte RAM.
The µPD78323 is a ROM-less version of the µPD78324. Also, It is provided the µPD78P324 as an on-chip PROM
product.
Detailed information about product features and specifications can be found in the following document.
µPD78322 User’s Manual : IEU-1248
FEATURES
• Internal 16-bit architecture and external 8-bit data bus
• High-speed processing by pipeline control and instruction prefetch
• Minimum instruction execution time: 250 ns (with 16 MHz external clock in operation)
• Instruction set suitable for control operations (µPD78312 upward compatible)
• Multiply/divide instructions (16 bits × 16 bits, 32 bits ÷ 16 bits)
• Bit manipulation instruction
• String instruction, etc.
• On-chip high-function interrupt controller
• 3-level priority specifiable
• 3-type interrupt processing mode selectable
(Vectored interrupt function, context switching function, and macro service function)
• Variety of peripheral hardware
• Realtime pulse unit
• 8-channel, 10-bit A/D converter
• Watchdog timer
• Powerful serial interface (with an on-chip dedicated baud rate generator)
• UART
····· 1 channel
• SBI (NEC Standard Serial Bus Interface)
• 3-wire serial I/O
····· 1 channel
APPLICATIONS
• Motor control devices
Unless there are any particular diferences, the µPD78324 is described as the representative model in this document.
The information in this document is subject to change without notice.
Document No. U10456EJ4V0DS00 (4th edition)
(Previous No. IC-2870)
Date Published November 1995 P
Printed in Japan
The mark shows major revised points.
© 1991
1 page  
P00 to P07
: Port0
P20 to P27
: Port2
P30 to P34
: Port3
P40 to P47
: Port4
P50 to P57
: Port5
P70 to P77
: Port7
P80 to P85
: Port8
P90 to P93
: Port9
NMI : Nonmaskable Interrupt
INTP0 to INTP6 : Interrupt From Peripherals
RTP0 to RTP7 : Realtime Port
TI : Timer Input
TXD : Transmit Data
RXD : Receive Data
SB0/SO
: Serial Bus/Serial Output
SB1/SI
SCK
TO00 to TO03
TO10 to TO11
: Serial Bus/Serial Input
: Serial Clock
:
: Timer Output
µPD78323, 78324
RESET
X1, X2
WDTO
EA
TMD
TAS
WR
RD
ASTB
AD0 to AD7
A8 to A15
AN0 to AN7
AVREF
AVSS
AVDD
VDD
VSS
NC
: Reset
: Crystal
: Watchdog Timer Output
: External Access
: Turbo Mode
: Turbo Access Strobe
: Write Strobe
: Read Strobe
: Address Strobe
: Address/Data Bus
: Address Bus
: Analog Input
: Analog Reference Voltage
: Analog VSS
: Analog VDD
: Power Supply
: Ground
: Non-connection
5
5 Page 
1. LIST OF PIN FUNCTIONS
1.1 PORT PINS
Pin Name
I/O
Input/
P00 to P07
output
P20
P21
P22
P23
Input
P24
P25
P26
P27
P30
P31
P32 Input/
output
P33
P34
Input/
P40 to P47
output
P50 to P57 Input/
output
P70 to P77 Input
P80
P81
P82 Input/
P83 output
P84
P85
P90
P91 Input/
P92 output
P93
Function
Port 0
8-bit input/output port
Input/output can be specified bit-wise
Also serves as a realtime output port.
Port 2
Dedicated port for 8-bit input
Port 3
5-bit input/output port
Input/output can be specified bit-wise
Port 4
8-bit input/output port
Input/output can be specified in 8-bit unit.
Port 5
8-bit input/output port
Input/output can be specified bit-wise
Port 7
Dedicated port for 8-bit input
Port 8
6-bit input/output port
Input/output can be specified bit-wise
Port 9
4-bit input/output port
Input/output can be specified bit-wise
µPD78323, 78324
Dual-
Function Pin
RTP0 to
RTP7
NMI
INTP0
INTP1
INTP2
INTP3
INTP4
INTP5
INTP6/TI
TXD
RXD
SO/SB0
SI/SB1
SCK
AD0 to AD7
A8 to A15
AN0 to AN7
TO00
TO01
TO02
TO03
TO10
TO11
RD
WR
TAS
TMD
11
11 Page | ||
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