W78LE51

Features: · Fully static design 8-bit CMOS microcontroller· Wide supply voltage of 2.4V to 5.5V· 128 bytes of on-chip scratchpad RAM· 4 KB electrically erasable/programmable MTP-ROM· 64 KB program memory address space· 64 KB data memory address space· Four 8-bit bi-directional ports· One extra 4-b...

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W78LE51 Picture
SeekIC No. : 004545034 Detail

W78LE51: Features: · Fully static design 8-bit CMOS microcontroller· Wide supply voltage of 2.4V to 5.5V· 128 bytes of on-chip scratchpad RAM· 4 KB electrically erasable/programmable MTP-ROM· 64 KB program m...

floor Price/Ceiling Price

Part Number:
W78LE51
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: 2024/3/27

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Product Details

Description



Features:

· Fully static design 8-bit CMOS microcontroller
· Wide supply voltage of 2.4V to 5.5V
· 128 bytes of on-chip scratchpad RAM
· 4 KB electrically erasable/programmable MTP-ROM
· 64 KB program memory address space
· 64 KB data memory address space
· Four 8-bit bi-directional ports
· One extra 4-bit bit-addressable I/O port, additional INT2 / INT3 (available on 44-pin PLCC/QFP package)
· Two 16-bit timer/counters
· One full duplex serial port(UART)
· Watchdog Timer
· seven sources, two-level interrupt capability
· EMI reduction mode
· Built-in power management
· Code protection mechanism
· Packages:
- DIP 40: W78LE51-24
- PLCC 44: W78LE51P-24
- PQFP 44: W78LE51F-24



Pinout

  Connection Diagram


Specifications

PARAMETER
SYMBOL
MIN.
MAX.
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 Temperature
TST
-55
+150
°C



Description

The W78LE51 is an 8-bit microcontroller which can accommodate a wide supply voltage range with low power consumption. The instruction set for the W78LE51 is fully compatible with the standard 8051. The W78LE51 contains an 4K bytes MTP ROM (Multiple-Time Programmable ROM); a 128 bytes RAM; four 8-bit bi-directional and bit-addressable I/O ports; an additional 4-bit I/O port P4; two 16-bit timer/counters; a hardware watchdog timer and a serial port. These peripherals are supported by seven sources two-level interrupt capability. To facilitate programming and verification, the MTPROM inside the W78LE51 allows the program memory to be programmed and read electronically. Once the code is confirmed, the user can protect the code for security.

The W78LE51 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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