S42
Hardware User Guide
1VV0301303 Rev. 11
Page 48 of 85
2021-05-06
Not Subject to NDA
The following table shows the average power consumption of S42operating in
the peripheral device role.
VSUP = 3,0V, Tamb = 25°C, all GPIO lines left open, SLCK: 32,768 kHz
Condition
Radioactive
Note Slow clock
SLCK
Current Consumption
Unit
Tx power (dBm) (8)
max (+4)
min (-20)
IAvg
IAvg
Standby, Advertising on 3 channels,
advertising interval: 1,28s,UICP not
active or serial interface up
(5)
internal (7
ext. Crystal
2,2
2,2
2,2
2,2
mA
Standby, Advertising on 3 channels,
advertising interval: 1,28s,UICP
active and serial interface down
(1)
internal (7)
ext. Crystal
29,7
27,6
23,6
21,6
µA
Connected, connection interval:
1,28s,UICP not active or serial
interface up, no data traffic
(5)
internal (7)
ext. Crystal
2,56
2,56
2,56
2,56
mA
Connected, connection interval:
1,28s,UICP active and serial interface
down
(1)
internal (7)
ext. Crystal
23,1
21,5
22,8
20,6
µA
Connected, connection interval:
7,5 ms, no data traffic
(2,3,
6)
2,9
2,8
mA
Connected, connection interval:
7,5 ms, data traffic 115 kbit/s at the
serial port, central to peripheral
(2,6,
9)
5,5
5,1
mA
Connected, connection interval:
7,5 ms, data traffic 115 kbit/s at the
serial port, peripheral to central
(2,6,
9)
5,7
4,3
mA
Connected, connection interval:
40 ms, no data traffic
(2,4,
6)
2,3
2,3
mA
Connected, connection interval:
37,5 ms, data traffic 115 kbit/s at the
serial port, peripheral to central
(2,4,
6,9)
3,0
2,5
mA
Notes
(1) UART-CTS#, IUR-IN#, UART-RXD driven to CMOS high level, all UART output lines left open
(2) connection parameters are setup by the central device when connection is established
(3) no data to be transmitted, central device sends an empty packet (80 bit) peripheral device answers
(empty packet: 80 bit)
(4) these are a typical connection parameters used by an iPhone, iPad or iPad mini device in the
central device role
(5) UART-inputs connected to GND or VSUP; UART output lines left open
(6) same current consumption w. internal or external slow clock
(7) RC oscillator internal to nRF52832, periodically trimmed by S-device
(8) TX power as set by AT command
(9) Effective Data throughput lower due to flow control in older FW versions
→
lower current
consumption S
Table 22: Supply Current BLE Terminal I/O Profile, Peripheral Device Role, ATEX
