W90N740CDG Nuvoton Technology Corporation of America, W90N740CDG Datasheet - Page 22

• 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
7.2.4.2. Connection of External Memory with Various Data Width
The system diagram for W90N740 connecting with the external memory is shown in Fig. 7.2.4. Below
tables (Table7.2.3 − Table7.2.14) show the program/data path between CPU register and the external
memory using little / big endian and word/half-word/byte access.
Fig. 7.2.4 Address/Data bus connection with external memory
Fig. 7.2.5 CPU register Read/Write with external memory
Publication Release Date: Aug. 18, 2005
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Revision A6