W78L54

Features: · Fully static design· Supply voltage of 1.8V to 5.5V· DC-24 MHz operation· 256 bytes of on-chip scratchpad RAM· 16K bytes of on-chip mask ROM· 64K bytes program memory address space· 64K bytes data memory address space· Four 8-bit bidirectional ports· Three 16-bit timer/counters· One fu...

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SeekIC No. : 004545031 Detail

W78L54: Features: · Fully static design· Supply voltage of 1.8V to 5.5V· DC-24 MHz operation· 256 bytes of on-chip scratchpad RAM· 16K bytes of on-chip mask ROM· 64K bytes program memory address space· 64K ...

floor Price/Ceiling Price

Part Number:
W78L54
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: 2024/3/28

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Product Details

Description



Features:

· Fully static design
· Supply voltage of 1.8V to 5.5V
· DC-24 MHz operation
· 256 bytes of on-chip scratchpad RAM
· 16K bytes of on-chip mask ROM
· 64K bytes program memory address space
· 64K bytes data memory address space
· Four 8-bit bidirectional ports
· Three 16-bit timer/counters
· One full duplex serial port
· Eight-source, two-level interrupt capability
· One extra 4-bit bit-addressable I/O port
· Two additional external interrupts INT2 / INT3
· Watchdog timer
· EMI reduction mode
· Built-in power management
· Code protection
· Packages:
- DIP 40: W78L54-24
- PLCC 44: W78L54P-24
- QFP 44: W78L54F-24



Description

The W78L54 microcontroller supplies a wider frequency and supply voltage range than most 8-bit microcontrollers on the market. It is compatible with the industry standard 80C54 microcontroller series. The W78L54 contains four 8-bit bidirectional parallel ports, one extra 4-bit bit-addressable I/O port (Port 4) and two additional external interrupts (INT2 , INT3 ), three 16-bit timer/counters, one watchdog timer and a serial port. These peripherals are supported by a eight-source, two-level interrupt capability. There are 256 bytes of RAM and an 16K byte mask ROM for application programs.

The W78L54 microcontroller has two power reduction modes, idle mode and power-down mode, both of which are software selectable. The idle mode turns off the processor clock but allows for continued peripheral operation. The power-down mode stops the crystal oscillator for minimum power consumption.  The external clock can be stopped at any time and in any state without affecting the processor.




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