W78L801A24LL Nuvoton Technology Corporation of America, W78L801A24LL Datasheet - Page 2

• Manufacturer Part Number: W78L801A24LL
• Description: IC MCU 8-BIT 4K ROM 48-LQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W78r

Specifications of W78L801A24LL

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: EBI/EMI
• Peripherals: LED, WDT
• Number Of I /o: 36
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: Mask ROM
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

1. 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.
2. 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; Port 0 has internal pull-up resisters enabled by software
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:
− PLCC 44:
− PQFP 44:
− Lead Free (RoHs)DIP 40:
− Lead Free (RoHs)PLCC 44: W78L801A24PL
− Lead Free (RoHs)PQFP 44: W78L801A24FL
− Lead Free (RoHs)LQFP 48: W78L801A24LL
W78L801-24
W78L801P-24
W78L801F-24
W78L801A24DL
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W78L801