Product Info

23
1SCPinNo ModulePinName Port Signal
20 UART2_RX A UART RX
21 UART2_CTS A UART CTS
22 UART2_TX A UART TX
74 UART2_RTS A UART RTS
43 SPIM0_EN0 C UART RTS
45 SPIM0_MISO C UART RX
46 SPIM0_MOSI C UART TX
94 SPIM0_CLK C UART CTS
Table 6 Special UART signals for certification/testing
2.11 Reference Circuit
A reference circuit for the Type1SC is provided in [1].
3 Power
Type1SC requires two power supplies, one for the LTE modem (VBAT) and the other for the RF FEM
(VBAT_FEM).
The power supply must be capable of peak current output of at least 400mA and 800mA,
respectively, for VBAT and VBAT_FEM.
3.1 Power Up Sequence
The power up sequence is shown below. Type1SC will power up automatically once VBAT is connected
to the power supply.
Figure 4 Power up sequence
3.2 Power Down Sequence
The supply to VBAT and VBAT_FEM should be turned off at the same time.
3.3 Power Supply Scenarios (by Battery Type)
A typical Type1SC based design uses a battery supply. The following are some possible battery supply
scenarios:
 LiPo Battery (3.2 ~ 4.35 V)
 CR17450 Battery (2.2 ~ 3.0 V)
 AA Lithium Battery (1.0 ~ 1.5 V)