S3C1860
DESCRIPTION
S3C1840, 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 S3C1840 microcontroller has been designed for use in small system control applications that require a low-power, cost sensitive design solution. In addition, the S3C1840 has been optimized for remote control transmitter. FEATURES
ROM Size
- 1,024 bytes Four Transmission Frequencies
- fxx/12 (1/4 duty), fxx/12 (1/3 duty), fxx/8 (1/2 duty), and no-carrier frequency
RAM Size
- 32 nibbles Supply Voltage
- 1.8 V-3.6 V (250 k Hz ≤ f OSC ≤ 3.9 MHz) 2.2 V-3.6 V (3.9 MHz < f OSC ≤ 6 MHz)
Instruction Set
- 39 instructions
Power Consumption Instruction Cycle Time
- 13.2 µsec at fxx = 455 k Hz
- - Halt mode: 1 µA (maxium) Normal mode: 0.5 m A (typical)
Input Ports
- Two 4-bit...
