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W78C33B

Features: · 8-bit CMOS microcontroller· Fully static design· Low standby current at full supply voltage· DC-40 MHz operation· 256 bytes of on-chip scratchpad RAM· ROMless operation· 64K bytes program memory address space· 64K bytes data memory address space· Four 8-bit bidirectional ports· One ext...

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SeekIC No. : 004544980 Detail

W78C33B: Features: · 8-bit CMOS microcontroller· Fully static design· Low standby current at full supply voltage· DC-40 MHz operation· 256 bytes of on-chip scratchpad RAM· ROMless operation· 64K bytes progra...

W78C33B Data Sheet

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Part Number:
W78C33B
Supply Ability:
5000

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

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Upload time: 2024/12/30

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Product Details

Description



Features:

· 8-bit CMOS microcontroller
· Fully static design
· Low standby current at full supply voltage
· DC-40 MHz operation
· 256 bytes of on-chip scratchpad RAM
· ROMless operation
· 64K bytes program memory address space
· 64K bytes data memory address space
· Four 8-bit bidirectional ports
· One extra 4-bit bidirectional port
· Three 16-bit timer/counters
· One full duplex serial port
· Boolean processor
· Six-source, two-level interrupt capability
· Built-in power management
· Packages:
   - PLCC 44: W78C33BP-24/40
   - QFP 44: W78C33BF-24/40
   - TQFP 44: W78C33BM-24/40


Pinout

Connection Diagram


Specifications

PARAMETER SYMBOL CONDITION RATING UNIT
DC Power Supply VDD-VSS -0.3 +7.0 V
Input Voltage VIN VSS -0.3 VDD +0.3 V
Operating Temperature TA 0 70 °C
Storage Temperatute Tst -55 +150 °C



Description

The W78C33B microcontroller supplies a wider frequency range than most 8-bit microcontrollers on the market. It is functional compatible with the industry standard 80C32 microcontroller series except the one extra 4-bit bit-addressable I/O port (Port 4).

The W78C33B contains four 8-bit bidirectional parallel ports, three 16-bit timer/counters, and a serial port. These peripherals are supported by a six-source, two-level interrupt capability. There are 256 bytes of RAM, and the device supports ROMless operation for application programs.

The W78C33B 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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