參數(shù)資料
型號(hào)： ATR0621N-7FQY
廠商： ATMEL CORP
元件分類： 無(wú)繩電話/電話
英文描述： TELECOM, CELLULAR, BASEBAND CIRCUIT, PBGA100
封裝： 9 X 9 MM, 0.80 MM PITCH, ROHS COMPLIANT, LFBGA-100
文件頁(yè)數(shù)： 10/31頁(yè)
文件大?。?/td> 477K
代理商： ATR0621N-7FQY
18
4890C–GPS–10/06
ATR0621
P24/GPSMODE8/MOSI
Internal pull-up resistor, can be left open if the GPSMODE feature is not used or configured as output by
user application. Refer to GPSMODE definitions in section “Setting GPSMODE0 to GPSMODE12” on
P25/NAADET0/MISO
Internal pull-down resistor, leave open if Antenna Supervision functionality is unused. Can be left open if
configured as output by user application.
P26/GPSMODE10/NSS/
NPCS0
Internal pull-up resistor, can be left open if the GPSMODE feature is not used or configured as output by
user application. Refer to GPSMODE definitions in section “Setting GPSMODE0 to GPSMODE12” on
P27/GPSMODE11/NPCS1
Internal pull-up resistor, can be left open if the GPSMODE feature is not used or configured as output by
user application. Refer to GPSMODE definitions in section “Setting GPSMODE0 to GPSMODE12” on
P28/EM_A20/NCS3
Output in default ROM firmware: leave open, only needs pull-up resistor to VDD18 or pull-down resistor to
GND if used as GPIO input by user application and is not always driven from external sources.
P29/GPSMODE12/NPCS3
Internal pull-up resistor, can be left open if the GPSMODE feature is not used or configured as output by
user application. Refer to GPSMODE definitions in section “Setting GPSMODE0 to GPSMODE12” on
P30/AGCOUT0
Internal pull-down resistor, leave open.
P31/RXD1
Internal pull-up resistor, leave open if serial interface is not used.
EM_DA0 – EM_DA15
If no external memory is used, could be leave open (internal pull-down).
Table 3-15.
Recommended Pin Connection (Continued)
Pin Name
Recommended External Circuit
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