DataSheet.es    


PDF D7564A Data sheet ( Hoja de datos )

Número de pieza D7564A
Descripción UPD7564A
Fabricantes NEC 
Logotipo NEC Logotipo



Hay una vista previa y un enlace de descarga de D7564A (archivo pdf) en la parte inferior de esta página.


Total 30 Páginas

No Preview Available ! D7564A Hoja de datos, Descripción, Manual

www.datasheet4u.com
DATA SHEET
MOS INTEGRATED CIRCUIT
µPD7564A, 7564A(A)
4-BIT SINGLE-CHIP MICROCOMPUTER
DESCRIPTION
The µPD7564A is a 4-bit single-chip microcomputer with a small number of ports in a small package, which is
of low-order models, µPD7554 and 7564 sub-series in the µPD7500 series. With an on-chip serial interface, it per-
forms efficient dispersion processing of a system as a sub-CPU for the 75X series or 78k series.
The µPD7564A has outputs to directly drive a triac and LEDs and allows selection among many types of input/
output circuits using their respective mask options, sharply reducing the number of external circuits required.
Details of functions are described in the User’s Manual shown below. Be sure to read in design.
µPD7554, 7564 User’s Manual: IEM-1111D
FEATURES
47 types of instructions
(Subset of µPD7500H SET B)
Instruction cycle
Ceramic oscillation : 2.86 µs
(in operation at 700 kHz, 5 V)
Program memory (ROM) capacity: 1024 × 8 bits
Data memory (RAM) capacity: 64 × 4 bits
Test source: One external source and two internal
sources
8-bit timer/event counter
15 I/O lines (Total output current of all pins: 100 mA)
• Can directly drive a triac and a LED: P80 to P82
• Can directly drive LEDs: P100 to P103 and P110 to
P113
• Mask option function provided for every port
APPLICATIONS
µPD7564A : PPCs, printers, VCRs, audio equipments,
etc.
µPD7564A(A) : Automotive and transportation equip-
ments, etc.
8-bit serial interface
Standby (STOP/HALT) function
Low supply voltage data retaining function for data
memory
Built-in ceramic oscillator for system clock
Low power dissipation
Single power supply (2.7 to 6.0 V)
PIN CONFIGURATION (TOP VIEW)
P00/INT0
1
20 VSS
P01/SCK
2
19 P113
P02/SO
3
18 P112
P03/SI
4
17 P111
P80 5
16 P110
P81 6
15 P103
P82 7
14 P102
CL2 8
13 P101
CL1 9
12 P100
VDD
10
11
RESET
5
The quality grade and absolute maximum ratings of the µPD7564A and the µPD7564A(A) differ.
Except where specifically noted, explanations here concern the µPD7564A as a representative product.
If you are using the µPD7564A(A), use the information presented here after the checking the func-
tional differences.
The information in this document is subject to change without notice.
Document No. IC-2401C
(O. D. No. IC-7834C)
Date Published December 1994 P
Printed in Japan
The mark 5 shows major revised points.
© 1994

1 page




D7564A pdf
µPD7564A, 7564A(A)
www.datasheet4u.com
10. RECOMMENDED PACKAGING PATTERN OF SOP (REFERENCE) ..................................................... 49
11. RECOMMENDED SOLDERING CONDITIONS ....................................................................................... 50
APPENDIX A. COMPARISON BETWEEN SUB-SERIES PRODUCT FUNCTIONS..................................... 51
APPENDIX B. DEVELOPMENT TOOLS ........................................................................................................ 52
APPENDIX C. RELATED DOCUMENTS .......................................................................................................... 54 5
5

5 Page





D7564A arduino
www.datasheet4u.com
1.6 RECOMMENDED CONNECTION OF UNUSED µPD7564A PINS
Pin
P00/INT0
P01 to P03
P80 to P82
P100 to P103
P110 to P113
Recommended Connection
Connect to VSS.
Connect to VSS or VDD.
Leave open.
Input state : Connect to VSS or VDD.
Output state: Leave open.
µPD7564A, 7564A(A)
1.7 OPERATION OF INPUT/OUTPUT PORTS
(1) P00 to P03 (Port 0)
The port 0 is a 4-bit input port consisting of 4-bit input pins P00 to P03. In addition to being used for port input,
P00 serves as a count clock input or testable input (INT0), each of P01 to P03 serves as a serial interface input/output.
To use P00 as a count clock input, set bits 2 (CM2) and 1 (CM1) of the clock mode register to 01. (See 2.10 “CLOCK
CONTROL CIRCUIT” for details.)
To use P00 as a INT0, set bit 3 (SM3) of the shift mode register to 1.
The serial interface function to use P01 to P03 as a serial interface I/O port is determined by bits 2 and 1 (SM2
and SM1) of the shift mode register. See 2.12 “SERIAL INTERFACE” for details.
Even though this port operates using any function other than the port function, execution of the port input
instruction (IPL) permits loading data on the P00 to P03 line to the accumulator (A0 to A3) at any time.
(2) P80 to P83 (Port 8)
The port 8 is a 4-bit output port with an output latch, which consists of 4-bit output pin.
The port output instruction (OPL) latches the content of the accumulator (A0 to A3) to the output latch and outputs
it to pins P80 to P83.
The SPBL and RPBL instructions allow bit-by-bit setting and resetting of pins P80 to P82.
For these ports, mask options for the output format are available to select CMOS (push-pull) output or N-ch open-
drain output.
The port specified as a N-ch open-drain output and provides an efficient interface to the circuit operating at a
different supply voltage because the output buffer has a dielectric strength of 9 V.
11

11 Page







PáginasTotal 30 Páginas
PDF Descargar[ Datasheet D7564A.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
D7564AUPD7564ANEC
NEC

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

Analog Devices
Analog Devices


DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar