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LC6522H - Single-Chip 4-Bit Microcomputers

Description

Pin Name Pins I/O Functions Options During Reset VDD vss 0SC1 OSC2 PA0 PAi PA2 PA3 PB0 PBi PB2 PB3 PCo PCI PC2 PC3 1 Power supply 1 1 Input Pin for externally connecting R, (1) External clock input C o r a ceramic resonator for (2) 2-pin RCOSC 1 Output system clock generation

Features

  • Instruction set with 80 instructions {Common to the LC6500 series).
  • ROM/RAM : 4096 bytes/1024 bits (LC6520C/H) : 2048 bytes/512 bits < LC6522C/H).
  • Instruction cycle time: 6/is (C version, VQD = 3 to 5.5V) 2.77 Ms (C version, V Q D ~ 4 to 5.5V) 9.92 MS (H version, V Q D = 4.5 to 5.5V).
  • Serial input/output interface x 1 (4 bits/8 bits program-selectable).
  • I/O ports Input port: 4 pins Input/output common ports: 32 pins Input.
  • input/out.

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LC6522C Single-Chip 4-Bit Microcomputers
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Ordering number: EN2076D No. 2076D CMOS LSI LC6520C, 6522C, LC6520H, 6522H Single-Chip 4-Bit Microcomputers for Medium/Large-Scale Control-Oriented Applications The LC6520C/H are single-chip 4-bit microcomputers that contain a 4K-byte ROM, 1 K-bit RAM, have 42 pins, and are fabricated using CMOS process technology. Besides 8 input/output common ports of 32 pins and an input port of 4 pins, the LC6520C/H have specific ports that are used to provide the interrupt function, 4-bit/8-bit serial input/output function, and burst pulse output function. All output ports are of the open drain type with a withstand voltage of 15 V and a drive current of 20 mA and have the option of containing a pull-up resistance bitwise.
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