S3P7235

Features: Memory 512 * 4-bit RAM 8 K *8-bit ROM (S3C7238/P7238) 16 K *8-bit ROM (S3C7235/P7235)I/O Pins Input only: 8 pins I/O: 24 pins Output: 8 pins sharing with segment driver outputsLCD Controller/Driver Maximum 16-digit LCD direct drive capability 32 segment, 4 common pins Display mo...

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SeekIC No. : 004482247 Detail

S3P7235: Features: Memory 512 * 4-bit RAM 8 K *8-bit ROM (S3C7238/P7238) 16 K *8-bit ROM (S3C7235/P7235)I/O Pins Input only: 8 pins I/O: 24 pins Output: 8 pins sharing with segment driver outputsLCD Co...

floor Price/Ceiling Price

Part Number:
S3P7235
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: 2024/11/23

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Product Details

Description



Features:

Memory
  512 * 4-bit RAM
  8 K *8-bit ROM (S3C7238/P7238)
  16 K *8-bit ROM (S3C7235/P7235)

I/O Pins
  Input only: 8 pins
  I/O: 24 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 0
  Programmable 8-bit timer
  External event counter
  Arbitrary clock frequency output
  Serial I/O interface clock generator

Watch Timer
  Real-time and interval time measurement
  Four frequency outputs to BUZ pin
  Clock source generation for LCD

8-Bit Serial I/O Interface
  8-bit transmit/receive mode
  8-bit receive only mode
   LSB-first or MSB-first transmission selectable
  Internal or external clock source

Bit Sequential Carrier
  Support 16-bit serial data transfer in arbitrary format

Interrupts
  Three internal vectored interrupts
  Three 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 to 85

Operating Voltage Range
1.8 V to 5.5 V

Package Type
80-pin QFP



Pinout

  Connection Diagram




Specifications

Parameter
Symbol
Conditions
Rating
Unit
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 pin active
-15
mA
All I/O ports active
35
Output current low
IOL
One I/O pin active + 30 (Peak value)
+ 15 (note)
Total value for ports 0, 2, 3, and 5 + 100 (Peak value)
+ 60 (note)
Total value for ports 4, 6, and 7 + 100
+ 60 (note)
Operating temperature
TA
-
40to + 85
Storage temperature
TSTG
-
65 to + 150



Description

The S3C7238/C7235/S3P7235 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 LCD direct drive capability, 8-bit timer/counter, and serial I/O, the S3C7238/C7235/S3P7235 offer an excellent design solution for a wide variety of applications that require LCD functions.

Up to 40 pins of the 80-pin QFP package can be dedicated to I/O. Six vectored interrupts provide fast response to internal and external events. In addition, the S3C7238/C7235/S3P7235's advanced CMOS technology provides for low power consumption and a wide operating voltage range.




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