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W78L801-24 fiches techniques PDF

Winbond - 8-BIT MICROCONTROLLER

Numéro de référence W78L801-24
Description 8-BIT MICROCONTROLLER
Fabricant Winbond 
Logo Winbond 





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W78L801-24 fiche technique
W78L801
8-BIT MICROCONTROLLER
GENERAL DESCRIPTION
The W78L801 is an 8-bit microcontroller which can accommodate a wide range of supply voltages
with low power consumption. The instruction set for the W78L801 is fully compatible with the standard
8051. The W78L801 contains an 4K bytes Mask ROM; a 256 bytes RAM; four 8-bit bi-directional and
bit-addressable I/O ports; an additional 6-bit I/O port P4; two 16-bit timer/counters; a hardware
watchdog timer. These peripherals are supported by a twelve sources two-level interrupt capability.
The W78L801 does not contain serial port.
The W78L801 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.
FEATURES
Fully static design 8-bit CMOS microcontroller
Wide supply voltage of 1.8V to 5.5V
DC-24 MHz operation
256 bytes of on-chip scratchpad RAM
4 KB Mask-ROM
64 KB program memory address space
64 KB data memory address space
Four 8-bit bi-directional ports
Two 16-bit timer/counters
Watchdog Timer
Direct LED drive outputs
Twelve sources, two-level interrupt capability
Wake-up via external interrupts at Port 1
EMI reduction mode
Built-in power management
Code protection mechanism
Packages:
DIP 40: W78L801-24
PLCC 44: W78L801P-24
PQFP 44: W78L801F-24
Publication Release Date: February 1999
- 1 - Revision A3

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