描述 Description

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 performs 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.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
? 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)APPLICATIONS
? μPD7564A : PPCs, printers, VCRs, audio equipments, etc.
? μPD7564A(A) : Automotive and transportation equip ments, etc.

特性 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
? 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)