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S3C7574

Features: Memory - 256 ´ 4-bit data RAM - 32 ´ 4-bit display RAM - 4096 ´ 8-bit ROM`I/O Pins - Input only: 4 pins - I/O: 11 pins - Output: 8 pins sharing with segment driver outputs`LCD Controller/Driver - Maximum 16-digit LCD direct drive capability - 32 segment, 4 common pins -...

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SeekIC No. : 004482130 Detail

S3C7574: Features: Memory - 256 ´ 4-bit data RAM - 32 ´ 4-bit display RAM - 4096 ´ 8-bit ROM`I/O Pins - Input only: 4 pins - I/O: 11 pins - Output: 8 pins sharing with segment driver output...

S3C7574 Data Sheet

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Part Number:
S3C7574
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/26

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Product Details

Description



Features:

Memory
  - 256 ´ 4-bit data RAM
  - 32 ´ 4-bit display RAM
  - 4096 ´ 8-bit ROM
`I/O Pins
  - Input only: 4 pins
  - I/O: 11 pins
  - Output: 8 pins sharing with segment driver outputs
`LCD Controller/Driver
  - Maximum 16-digit LCD direct drive capability
  - 32 segment, 4 common pins
  - Display modes: Static, 1/2 duty (1/2 bias) 1/3 duty (1/2 or 1/3 bias), 1/4 duty (1/3 bias)
`8-Bit Basic Timer
  - Programmable interval timer
  - Watchdog timer
`8-Bit Timer/Counter
  - Programmable 8-bit timer
  - External event counter
  - Arbitrary clock frequency output
`Watch Timer
  - Real-time and interval time measurement
  - Four frequency outputs to BUZ pin
  - Clock source generation for LCD
`Bit Sequential Carrier
  - Support 16-bit serial data transfer in arbitrary format
`DTMF Generator
  - 16 Dual-tone frequencies for tone dialing applications (only 3.58 MHz)
`Interrupts
  - Two internal vectored interrupts
  - Two external vectored interrupts
  - Two quasi-interrupts
`Memory-Mapped I/O Structure
  - Data memory bank 15
`Two Power-Down Modes
  - Idle mode (only CPU clock stops)
  - Stop mode (main or sub system oscillation stops)
`Oscillation Sources
  - Crystal, ceramic, or RC for main system clock
  - Crystal or external oscillator for subsystem clock
  - Main system clock frequency: 4.19 MHz (typical)
  - Subsystem clock frequency: 32.768 kHz
  - CPU clock divider circuit (by 4, 8, or 64)
`Instruction Execution Times
  - 0.95, 1.91, 15.3 µs at 4.19 MHz (main)
  - 122 µs at 32.768 kHz (subsystem)
`Operating Temperature
  - 40 °C to 85 °C
`Operating Voltage Range
  - 2.0 V to 5.5 V at 4.19 MHz
  - 1.8 V to 5.5 V at 3 MHz
`Package Type
  - 64-QFP-1420F
  - 64-QFP-1414


Pinout

Connection Diagram


Specifications

Parameter Symbol Conditions Rating Units
Supply Voltage VDD - 0.3 to + 6.5 V
Input Voltage VI1 All I/O ports 0.3 to VDD + 0.3
Output Voltage VO   0.3 to VDD + 0.3
Output Current High IOH One I/O port active 15 mA
All I/O ports active - 30
Output Current Low IOL One I/O port active + 30 (Peak value)
+ 15 (note)
Total value for ports 2 and 3 + 60 (Peak value)
+ 20 (note)
Total value for port 6 + 50
+ 20 (note)
Operating Temperature TA   40 to + 85 °C
Storage Temperature Tstg   65 to + 150



Description

The S3C7574 single-chip CMOS microcontroller has been designed for high performance using Samsung's newest 4-bit CPU core, SAM47 (Samsung Arrangeable Microcontrollers).

With features such as, DTMF Generator, LCD direct drive capability, 8-bit timer/counter, and watch timer, the S3C7574 offers an excellent design solution for a wide variety of telecommunication applications that require LCD functions.

Up to 15 pins of the 64-pin QFP package, it can be dedicated to I/O. Four vectored interrupts provide fast response to internal and external events. In addition, the S3C7574's advanced CMOS technology provides for low power consumption and a wide operating voltage range.




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