User's Manual

PRELIMINARY DATA SHEET • SKY66430-11: LTE FOR IoT SYSTEM-in-PACKAGE
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
204412F • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • August 26, 2019 7
Table 1. SKY66430-11 Signal Pin Assignments and Functional Pin Descriptions (3 of 4)
Ball ID Ball Name Description GPIO Direction
IO Power
Group Pad Type
Drive
(mA) State @ Reset
D15 UART1_RTS_N UART1_RTS_N output GPIO[7] In/Out PMU_1V8 BIDIR 2 In, PU
D16 MSSPI_CS_1_N Master-Slave SPI chip select 1 GPIO[19] In/Out PMU_1V8 BIDIR 2 In, PU
D17 MSSPI_SDI Master-Slave SPI input data GPIO[16] In/Out PMU_1V8 BIDIR 2 In, PU
D20 RXHBP Optional HB differential RX, positive
E1 PMU_OSCO 32.768 kHz crystal connection
E2 PMU_LPM_N Reserved, 1.8 V always-on supply
E3 PMU_POWERON_PULSE
Active high power-on pulse; connect to
GND
E14 QSPI_RST_N Quad-SPI flash reset
E15 MSSPI_CS0_N Master-Slave SPI chip select 0 GPIO[18] In/Out PMU_1V8 BIDIR 2 In, PU
E20 RXHBN Optional HB differential Rx, negative
F1 PMU_OSCI 32.768 kHz crystal connection
F2 PMU_POWERON_PULSE_N
Active low power-on pulse; connect to
GND
F3 EXT_RST_N
Chip reset: active low: no external
pull-up required
F8 I2C_SDA I
2
C interface data GPIO[13] In/Out PMU_1V8 BIDIR 2 In, PU
G1 PMU_1V1 1.1 V DCDC feedback/supply input
G2 PMU_1V1 1.1 V DCDC feedback/supply input
G3 VBATT (PMU_VISNS) VBATT Sense node
G18 1V2_RXVCO
Internal 1.2 V LDO output for external
stability capacitor
G20 RFDATA_7 RF control signal N/A In/Out PMU_1V8 BIDIR 2 In, HiZ
H1 PMU_LX1V1 1V1 DCDC Switching node to external LC
H2 PMU_LX1V1 1V1 DCDC Switching node to external LC
H12 RFIC_BBREG2A5_EN
Internal 2V5 regulator enable
(recommended to add 100K pull-down
resistor)
H13 RFIC_DCXO_REG1V8_EN
Internal LDO enable: connect external
100K pull-down resistor to GND
H14 RFIC_RESET_N Chip Reset, requiring 100K pull down
H16 AUXADC1 External connection to AUX ADC
H18 AUXADC2 External connection to AUX ADC
H20 RFDATA_3 RF control signal N/A In/Out PMU_1V8 BIDIR 2 In, HiZ
J1 PMU_PGND2 1.1 V DCDC power ground
J2 PMU_PGND2 1.1 V DCDC power ground
J3 PMU_PGND2 1.1 V DCDC power ground
J18 AUXADC3 External connection to AUX ADC
K1 VBATT (PMU_VI2)
VBATT power input to 1.8 V/
1.1 V DCDC
K2 VBATT (PMU_VI2)
VBATT power input to 1.8 V/
1.1 V DCDC
K3 VBATT (PMU_VI2)
VBATT power input to 1.8 V/
1.1 V DCDC