W90N740CDG Nuvoton Technology Corporation of America, W90N740CDG Datasheet - Page 37

• Manufacturer Part Number: W90N740CDG
• Description: IC MCU ARM7 TDMI 176-LQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W90r

Specifications of W90N740CDG

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 80MHz
• Connectivity: EBI/EMI, Ethernet, UART/USART, USB
• Peripherals: DMA, POR, WDT
• Number Of I /o: 21
• Program Memory Type: ROMless
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 1.62 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 176-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

W90N740CD/W90N740CDG
USBCKS [15] ： USB clock source Select bit
0 = USB clock 48MHz input from internal PLL ( 480MHz/10)
1 = USB clock 48MHz input from external GP12 pin, this GPIO pin direction must set to input.
GDMA [13] ： GDMA clock enable bit
0 = Disable GDMA clock
1 = Enable GDMA clock
NATA [12] ： NATA clock enable bit
0 = Disable NATA clock
1 = Enable NATA clock
EMC1 [11] ： EMC1 clock enable bit
0 = Disable EMC1 clock
1 = Enable EMC1 clock
EMC0 [10] ： EMC0 clock enable bit
0 = Disable EMC0 clock
1 = Enable EMC0 clock
WDTS [9] : WDTS clock selected bit
0 = Clock from EXTAL pin is used as WDT counting clock
1 = Clock from EXTAL pin is divided by 256, which is used as WDT counting clock
WDT [8] ： WDT clock enable bit
0 = Disable WDT counting clock
1 = Enable WDT counting clock
USB [7] ： USB clock enable bit
0 = Disable USB clock
1 = Enable USB clock
TIMER [6] ： Timer clock enable bit
0 = Disable Timer clock
1 = Enable Timer clock
UART [5] ： UART clock enable bit
0 = Disable UART clock
1 = Enable UART clock
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