KS51850 - 4-bit single-chip CMOS microcontroller
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
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,
KS51850 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/
