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KS51850 - 4-bit single-chip CMOS microcontroller

Description

for 24 PINS Pin Name P0.0-P0.3 P1.0-P1.3 P2.0 REM P2.2-P2.5 P2.1, P2.6 P3.0-P3.3 TEST XI XO VDD VSS Pin Number 5, 6, 7, 8 9, 10, 11, 12 23 20, 19, 18, 17 21, 4 16, 15, 14, 13 22 2 3 24 1 Pin Type Input Input Output Output Description 4-bit input port when P2.13 is low 4-bit input port when P2.13

Features

  • ROM Size.
  • 1,024 bytes RAM Size.
  • 32 nibbles Instruction Set.
  • 39 instructions Instruction Cycle Time.
  • 13.2 µsec at fxx = 455 kHz Input Ports.
  • Two 4-bit ports (24 pins)/one 4-bit, Five1-bit ports (20 pins) Four Transmission Frequencies.
  • fxx/12 (1/4 duty), fxx/12 (1/3 duty), fxx/8 (1/2 duty), and no-carrier frequency Built-in Transistor for I. R. LED Drive.
  • IOL1: 210 ma (typical) at VDD = 3V and VO = 0.4V Supply Voltage.
  • 1.8 V-3.

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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.

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2 KS51850 51850 OVERVIEW KS51850, a 4-bit single-chip CMOS microcontroller, consists of the reliable SMCS-51 CPU core with on-chip ROM and RAM. Eight input pins and 11 output pins provide the flexibility for various I/O requirements. Auto reset circuit generates reset pulse every certain period, and every halt mode termination time. The KS51850 microcontroller has been designed for use in small system control applications that require a low-power, cost sensitive design solution. In addition, the KS51850 has been optimized for remote control transmitter and has built-in Transistor for I.R.LED drive. FEATURES ROM Size • 1,024 bytes RAM Size • 32 nibbles Instruction Set • 39 instructions Instruction Cycle Time • 13.
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