W78E054DFG Nuvoton Technology Corporation of America, W78E054DFG Datasheet - Page 34

• Manufacturer Part Number: W78E054DFG
• Description: IC MCU 8-BIT 16K FLASH 44-PQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W78r

Specifications of W78E054DFG

• Core Processor: 8052
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 36
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

B Register
Mnemonic: B
Bit
7-0
7-0
Bit:
Name
ACC
B
7
B.7
Function
The A or ACC register is the standard 8052 accumulator.
The B register is the standard 8052 register that serves as a second accumulator.
6
B.6
5
B.5
W78E054D/W78E052D/W78E051D Data Sheet
4
B.4
- 34 -
3
B.3
2
B.2
1
B.1
Address: F0h
0
B.0