S3C1840 Ver la hoja de datos (PDF) - Samsung

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S3C1840

4-bit single-chip CMOS microcontroller

Samsung 

S3C1840

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

RAM Size

• 32 nibbles

Instruction Set

• 39 instructions

Instruction Cycle Time

• 13.2 µsec at fxx = 455 kHz

Four Transmission Frequencies

• fxx/12 (1/4 duty), fxx/12 (1/3 duty), fxx/8 (1/2

duty), and no-carrier frequency

Supply Voltage

• 1.8 V-3.6 V (250 kHz ≤ fOSC ≤ 3.9 MHz)

2.2 V-3.6 V (3.9 MHz < fOSC ≤ 6 MHz)

Power Consumption

• Halt mode: 1 µA (maxium)

• Normal mode: 0.5 mA (typical)

Input Ports

• Two 4-bit ports (24 pins)/one 4-bit port, one 2-bit

ports (20 pins)

Output Ports

• One 4-bit port, seven 1-bit ports (24 pins)/one 4-

bit port, five1-bit ports (20 pins)

Built-in Oscillator

• Crystal/ceramic resonator

Operating temperature

• – 20 °C to 85 °C

Package Type

• 24 SOP, 20 DIP, 20 SOP

Oscillator Frequency divide select

• Mask Option: fxx = fOSC or fOSC/8

Built-in Reset Circuit

• Built-in Power-on reset and auto reset circuit for

generating reset pulse every 131072/fxx (288

ms at fxx = 455 kHz)

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