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UPD75104A
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Part Number: UPD75104A

Description: UPD75108A is a 4-bit single-chip CMOS microcomputer having a data processing capability comparable to that of an 8-bit ...

UPD75104A General Description

UPD75108A is a 4-bit single-chip CMOS microcomputer having a data processing capability comparable to that of an 8-bit microcomputer. Operating at high speeds, the microcomputer allows data to be manipulated in units of 1, 4, or 8 bits. In addition, various bit manipulation instructions are provided to reinforce I/O manipulation capability. Equipped with I/Os for interfacing with peripheral circuits operating on a different supply voltage, outputs that can directly drive LEDs, and analog inputs, PD75108A is suitable for controlling such small equipments as cameras and VCRs.

Detailed functions are described in the following user's manual. Be sure to read it for designing. UPD751XX Series User's Manual: IEM-922

UPD75104A Maximum Ratings

Parameter	Symbol	Conditions		Ratings	Unit
Supply Voltage	V_DD			-0.3 to +7.0	V
Input Voltage	V_I1	Other than ports 12 to 14			V
	V_I2^*1	Ports 12 to 14	w/pull-up resistor	-0.3 to VDD+0.3	V
	V_I2^*1	Ports 12 to 14	Open drain	-0.3 to +13	V
Output Voltage	V_O			-0.3 to VDD+0.3	V
High-Level Output Current	I_OH	1 pin		-15	mA
High-Level Output Current	I_OH	All pins		-30	mA
Low-Level Output Current	I_OL^*2	1 pin	Peak	30	mA
		1 pin	rms	15	mA
		Total of ports 0, 2 to 4, 12 to 14	Peak	100	mA
		Total of ports 0, 2 to 4, 12 to 14	rms	60	mA
		Total of ports 5 to 9	Peak	100	mA
		Total of ports 5 to 9	rms	60	mA
Operating Temperature	T_opt			-40 to +85	°C
Storage Temperature	T_stg			-65 to +150	°C

UPD75104A Features

* Internal memory
* Program memory (ROM)
     : 8064 * 8 bits (PD75108A)
     : 4096 * 8 bits (PD75104A)
* Data memory (RAM)
    : 512 * 4 bits (PD75108A)
    : 320 * 4 bits (PD75104A)
* Architecture "75X" rivaling 8-bit microcomputers
* 43 systematically organized instructions
* A wealth of bit manipulation instructions
* 8-bit data transfer, compare, operation, increment, and decrement instructions
* 1-byte relative branch instructions
* GETI instruction executing 2-/3-byte instruction with one byte
* High speed. Minimum instruction execution time: 0.95 s (at 4.19 MHz, 5V)
* Instruction execution time change function: 0.95 s/1.91 s/15.3 s (at 4.19 MHz)
* I/O port pins as many as 58
* Three channels of 8-bit timers
* 8-bit serial interface
* Multiplexed vector interrupt function

UPD75104A Connection Diagram

UPD75104A datasheet

UPD75104AGC
PDF/DataSheet Download

Datasheet: UPD75104AGC
File Size: 355228 KB
Manufacturer: NEC [NEC]
Click here to Download

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