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UPD31172 Datasheet(PDF) 5 Page - NEC |
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UPD31172 Datasheet(HTML) 5 Page - NEC |
5 / 9 page Data Sheet U14388EJ2V0DS00 5 µµµµPD31172 PIN IDENTIFICATION ACK#: Acknowledge MRAS (0:1)#: DRAM Row Address Strobe AD (0:24): Address Bus OCI (1:2): Over Current Interrupt ARBCLKSEL: Arbitration Clock Select PE: Paper End AUTOFEED#: Autofeed PPON (1:2): Port Power ON BUSAK (0:1)#: Bus Acknowledge PS2CLK: PS2 Clock BUSCLK: System Bus Clock PS2DATA: PS2 Data BUSRQ (0:1)#: Bus Request PS2INT: PS2 Interrupt BUSY: Busy RD#: Read CD (0:7): Centronics Data RESET: Reset CKE: Clock Enable RI#: Ring Indicator CLKOUT48M: Clock Out of 48 MHz ROMCS (2:3)#: ROM Chip Select CTS#: Clear to Send RTS#: Request to Send DATA (0:31): Data Bus RXD: Receive Data DCD#: Data Carrier Detect Column Address Strobe for DIR1284: Direction of 1284 SCAS#: SDRAM DN (1:2): USB D − SCLK: SDRAM Clock DP (1:2): USB D+ SELECT: Select DSR#: Data Set Ready SELECTIN#: Select in DTR#: Data Terminal Ready SMI#: USB System Interrupt ERROR#: Error Row Address Strobe for EXCS (0:5)#: External CS SRAS#: SDRAM GND: Ground STROBE#: Strobe GPIO (0:23): General Purpose I/O TXD: Transmit Data HOLDAK#: Hold Acknowledge UCAS#: Upper Column Address Strobe HOLDRQ#: Hold Request Lower Byte of Upper Column IEN: USB Input Enable ULCAS#: Address Strobe INIT# Initialize USBINT#: USB Interrupt INTRP: Interrupt USBRST#: USB Reset IOCHRDY: I/O Channel Ready Upper Byte of Upper Column IOCS16#: IO Chip Select 16 UUCAS#: Address Strobe IOR#: I/O Read VDD: Power Supply Voltage IOW#: I/O Write WAKE: Wake Up Interrupt IRQ: I/O Request WR#: Write LCAS#: Lower Column Address Strobe XIN48M: Clock In of 48 MHz LCDBAK: LCD Back Light XOUT48M: Clock Out of 48 MHz LCDCS#: LCD Chip Select LCDRDY: LCD Ready Remark # indicates active low. |
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