UPD7564A

Features:

* 47 types of instructions (Subset of PD7500H SET B)
* Instruction cycle
   Ceramic oscillation :2.86 s
                                  (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)


Application

PPCs, printers, VCRs, audio equipments,etc.


Pinout




Specifications

Parameter	Symbol	Test Conditions		Ratings	Unit
Supply Voltage	VDD			-0.3 to +7.0	V
Input Voltage	VI	Except ports 10 and 11		0.3 to VDD + 0.3	V
		Ports 10 and 11	*1	0.3 to VDD + 0.3	V
			*2	0.3 to +11	V
Output Voltage	VO	Except ports 8, 10, 11		0.3 to VDD + 0.3	V
		Ports 8, 10 and 11	*1	0.3 to VDD + 0.3	V
			*2	0.3 to +11	V
Output current high	IOH	1 pin		5	mA
		All pins in total		15	mA
Output current low	IOL	1 pin	P01, P02	5	mA
			Port 8	30	mA
			Others	15	mA
		All pins in total		100	mA
Operating Temperature	Topt			10 to +70	°C
Storage Temperature	Tstg			-65 to +150	°C
Power consumption	Pd	Ta = 70 °C	Shrink DIP	480	mW
			Mini flat	250

Description

The UPD7564A is a 4-bit single-chip microcomputer with a small number of ports in a small package, which is of low-order models, PD7554 and 7564 sub-series in the PD7500 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 UPD7564A 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.