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4551 Group

Features: `Minimum instruction execution time ............................. 3.0 ms(f(XIN)=4.0 MHz, VDD=3.0 V, system clock = f(XIN)/4)`Supply voltage ............................. 2.5 V to 5.5 V (One Time PROM version) ....................................... 2.2 V to 5.5 V (Mask ROM version)`Syste...

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SeekIC No. : 004231266 Detail

4551 Group: Features: `Minimum instruction execution time ............................. 3.0 ms(f(XIN)=4.0 MHz, VDD=3.0 V, system clock = f(XIN)/4)`Supply voltage ............................. 2.5 V to 5.5 V (On...

4551 Group Data Sheet

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Part Number:
4551 Group
Supply Ability:
5000

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

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Upload time: 2024/4/27

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Product Details

Description



Features:

`Minimum instruction execution time ............................. 3.0 ms
(f(XIN)=4.0 MHz, VDD=3.0 V, system clock = f(XIN)/4)
`Supply voltage ............................. 2.5 V to 5.5 V (One Time PROM version) ....................................... 2.2 V to 5.5 V (Mask ROM version)
`System clock switch function ........................................... Clock divided by 4 or not divided
` LCD control circuit Segment output...................................................................20 Common output .................................................................... 4
` Carrier wave frequency switch function System clock, system clock/2, system clock/8, system clock/12, system clock/16, system clock/24, "H" fixed
` Timers Timer 1 ................................ 8-bit timer with a reload register  Timer 2 ............... 14-bit timer also used as a watchdog timer Timer LC ............................. 4-bit timer with a reload register
` Interrupt ................................................................... 3 sources
` Voltage drop detection circuit ............................................... 1
` Clock generating circuit (ceramic resonance and quartz-crystal oscillation)


Application

Remote control transmitter


Pinout

Connection Diagram


Description

The 4551 Group is a 4-bit single-chip microcomputer designed with CMOS technology. Its CPU is that of the 4500 series using a simple, high-speed instruction set. The computer 4551 Group is equipped with an 8-bit timer with a reload register, a 14-bit timer which is also used as a watchdog timer, a 4-bit timer with a reload register, a carrier wave output circuit and an LCD control circuit.

The mask ROM version and built-in PROM version of 4551 Group are produced as shown in the table below.




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