XR21V1412IL-0B-EB
XR21V1412IL-0B-EB Datasheet
XR21V1412 EVALUATION BOARD USER’S MANUAL
| Part | Datasheet |
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XR21V1412IL-0B-EB |
XR21V1412IL-0B-EB (pdf) |
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| XR21V1412 EVALUATION BOARD USER’S MANUAL INTRODUCTION OVERVIEW The XR21V1412 evaluation board has one 32-QFN package on it. Figure 1 shows a top view of XR21V1412 evaluation board layout. FIGURE TOP VIEW OF XR21V1412 EVALUATION BOARD LAYOUT XR21V1412 EVALUATION BOARD USER’S MANUAL Figure 2 shows a bottom view of XR21V1412 evaluation board layout. FIGURE BOTTOM VIEW OF XR21V1412 EVALUATION BOARD LAYOUT XR21V1412 EVALUATION BOARD USER’S MANUAL Evaluation Board Components Table 1 below lists some of the components installed on the evaluation boards. The default setting is RS-232 mode. TABLE 1 COMPONENTS OF THE XR21V1412 EVALUATION BOARD UNIT LOCATION PART FUNCTION Bottom XRP6657-DFN6 Exar’s voltage converter to step down voltage from 5V to 3.3V. AT24C02B-PU-DIP8 I2C EEPROM. XR21V1412IL32 Exar’s 2 channel USB UART. Bottom NC7SZ14M5X-SOT-23-5 Invert LowPower suspend signal. Bottom SN74LVC2G53DCTR-SM8 Switch UART TXA signal into either RS-232 or RS-485 transceiver. Bottom SN74LVC2G53DCTR-SM8 Switch RXA signal from either RS-232 or RS-485 trans- ceiver. Bottom SN74LVC2G53DCTR-SM8 Switch UART TXB signal into either RS-232 or RS-485 transceiver. Bottom SN74LVC2G53DCTR-SM8 Switch RXB signal from either RS-232 or RS-485 trans- ceiver. Bottom SP3245EEY-L-TSSOP-28 Exar’s RS-232 transceiver for channel A. Bottom SP3245EEY-L-TSSOP-28 Exar’s RS-232 transceiver for channel B. Bottom SN74LVC2G66DCT-SM8 Mutiplexer to select RS-485 direction control signal |
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