Details, datasheet, quote on part number: LC6512A
PartLC6512A
Category
Description4-bit Single-chip Microprocessor For Control-oriented Application
CompanySanyo Semiconductor Corporation
DatasheetDownload LC6512A datasheet
Quote
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Features, Applications

Single-Chip 4-Bit Microcomputer for Control-Oriented Applications (Low-Threshold Input, On-Chip FLT Driver)

The LC6512A, 6513A are microcomputers that are dentical with FLT driver-contained microcomputers 6505D in instruction set but are further enhanced in performance, such as shorter cycle time, more stack levels, increased FLT drive capacity, and are partially changed in specifications for standby function. Since the LC6512A, 6513A are also pin-compatible with the LC6502D, 6505D, they can be used as similar replacements for the LC6502D, 6505D. The LC6512A, 6513A can replace the 6505B/6505D to enhance performances of equipment in which these microcomputers have been applied so far. (3) The standby function is the same as for the LC6514B and its using method is different from that of the LC6502D, 6505D, etc.

Features

Low power dissipation CMOS single-chip microcomputer. Instruction set with 79 instructions common to the 2-source, 2-level interrupt function (external interrupt/ internal timer interrupt) 8-level stack 4-bit prescaler-contained 8-bit programmable timer FLT driver-contained output ports and low-threshold input ports (1) Digits driving output ports: 10 pins (2) Segments driving output ports: 8 pins (3) Normal voltage input ports: 8 pins (4 pins: Lowthreshold input port) (4) Normal voltage input/output ports: 8-pins ROM, RAM (1) LC6512A ROM: 2048bytes, RAM: (2) LC6513A ROM: 1024 bytes, RAM: 4bits Cycle time 1.33s min. 1MHz, 3MHz ceramic resonator OSC. Power-down by 2 standby modes (1) HALT mode: Power dissipation saving by program standby during normal operation (2) HOLD mode: Power supply backup during power failure

Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other parameters) listed in products specifications of any and all SANYO products described or contained herein.

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

Differences among LC6512A, 6513A The LC6512D, 6513D and LC6512A, 6513A are different in the OSC circuit only and are the same in the basic features. The differences are shown below.

Item OSC circuit configuration OSC mode OSC waveform Operating frequency 1-stage inverter Ceramic resonator OSC Sine wave 6513A 5-stage inverter Ceramic resonator OSC, CR OSC, application of external clock Rectangular wave Ceramic resonator OSC: 800kHz, 1 MHz CR OSC: 400kHz typ. 800kHz typ External clock: LC6512D. 6513D

Technical Data The LC6512A, 6513A are members of our LC6500 series of CMOS microcomputers. For their internal functions, refer to the LC6500 SERIES USFRS MANUAL. Those which differ from the description in the USERS MANUAL are described in this catalog. Carefully study features and Appendix 4 Standby Function in this catalog before using the LC6512A, 6513A.

: Ceramic resonator for OSC : Interrupt : Reset : Hold : Input port : Input port : Input/output common port : Input/output common port : Output port (High-voltage port) : Output port (High-voltage port) : Output port (High-voltage port) : Output port (High-voltage port) : Output port (High-voltage port) : Test

(Note) Nothing must be connected to NC pins internally or externally. When mounting the QIP version on the board, do not dip it in solder.

: Data memory : Flag : Working register : Accumulator : Arithmetic and logic unit : Data pointer : E register : Control register : Oscillation circuit : Timer

: Status register : Program memory : Program counter : Interrupt control : lnstruction register : lnstruction decoder : Carry flag, carry save flag : Zero flag, zero save flag : External interrupt request flag : Internal interrupt request flag

Pin Name INT Input/Output Input Interrupt request input pin HOLD mode request input pin (The LC6502, 6505 differ in function.) Capable of being used as a general-purpose single-bit input port unless the standby mode is used. Reset input pin Input port to A3 (Normal voltage, low-threshold input) Capable of 4-bit input and single-bit decision for branch Use also for HALT mode release request input Function


 

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