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XR16M670IB25 Datasheet(PDF) 4 Page - Exar Corporation |
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XR16M670IB25 Datasheet(HTML) 4 Page - Exar Corporation |
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4 / 52 page  XR16M670 4 1.62V TO 3.63V HIGH PERFORMANCE UART WITH 32-BYTE FIFO REV. 1.0.0 Pin type: I=Input, O=Output, I/O= Input/output, OD=Output Open Drain. DSR# - 25 C4 I UART Data-Set-Ready (active low) or general purpose input. This input should be connected to VCC when not used. CD# - 26 - I UART Carrier-Detect (active low) or general purpose input. This input should be connected to VCC when not used. RI# - 27 - I UART Ring-Indicator (active low) or general purpose input. This input should be connected to VCC when not used. ANCILLARY SIGNALS XTAL1 8 10 D5 I Crystal or external clock input. XTAL2 - 11 - O Crystal or buffered clock output. PwrSave 7 - - I Power-Save (active high). This feature isolates the M670’s data bus interface from the host preventing other bus activities that cause higher power drain during sleep mode. See Sleep Mode with Auto Wake-up and Power-Save Feature section for details. This pin does not have a pull-down resistor. This input should be connected to GND when not used. RESET 17 23 A2 I This input is active high. A 40 ns minimum active pulse on this pin will reset the internal registers and all outputs of the UART. The UART transmitter output will be held at logic 1, the receiver input will be ignored and outputs are reset during reset period (see UART Reset Conditions). VCC 19 28 B1 Pwr 1.62V to 3.63V power supply. GND 10 13 E5 Pwr Power supply common, ground. GND Center Pad Center Pad - Pwr The center pad on the backside of the QFN package is metallic and should be connected to GND on the PCB. The thermal pad size on the PCB should be the approximate size of this center pad and should be solder mask defined. The solder mask opening should be at least 0.0025" inwards from the edge of the PCB thermal pad. NC - 2, 9, 15, 16 - - No Connects. Pin Description NAME 24-QFN PIN# 32-QFN PIN# 25-BGA PIN# TYPE DESCRIPTION |
Similar Part No. - XR16M670IB25 |
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Similar Description - XR16M670IB25 |
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