Data Sheet

ManualsBrandsiTead Studio ManualsBiometric SensorsBL18 ECG Maven Heart Rate Monitor Module

Page 46

nRF51822 Product Specification v3.1

Symbol Description Note Min. Typ. Max. Units

Test

level

I

OFF

Current in SYSTEM OFF, no RAM

retention.

0.6

1

µA 2

I

OFF, RET, 8k

Additional current in SYSTEM

OFF per retained RAM block

(8 kB)

0.6

1

µA 2

I

OFF2ON

OFF to CPU execute

transition current.

400 µA 1

t

OFF2ON

OFF to CPU execute. 9.6 10.6 µs 1

I

ON,16k

SYSTEM-ON base current with

16 kB RAM enabled.

2.6

1

µA 2

I

ON,32k

SYSTEM-ON base current with

32 kB RAM enabled.

3.8

1

µA 2

t

1V2

Startup time for 1V2 regulator. 2.3 µs 1

I

1V2XO16

Current drawn by 1V2 regulator

and 16 MHz XOSC when both

are on at the same time.

See Table 33 on page 48.

810

2

µA 1

I

1V2XO32

Current drawn by 1V2 regulator

and 32 MHz XOSC when both

are on at the same time.

See Table 33 on page 48.

840

2

µA 1

I

1V2RC16

Current drawn by 1V2 regulator

and 16 MHz RCOSC when both

are on at the same time.

See Table 33 on page 48.

880

2

µA 1

I

1V2XO16,1M

For HFCLK in 1 MHz mode

3

.

Current drawn by 1V2 regulator

and 16 MHz XOSC when both

are on at the same time.

See Table 33 on page 48.

520

2

µA 1

I

1V2XO32,1M

For HFCLK in 1 MHz mode

3

.

Current drawn by 1V2 regulator

and 32 MHz XOSC when both

are on at the same time.

See Table 33 on page 48.

560

2

µA 1

I

1V2RC16,1M

For HFCLK in 1 MHz mode

3

.

Current drawn by 1V2 regulator

and 16 MHz RCOSC when both

are on at the same time.

See Table 33 on page 48.

630

2

µA 1

t

XO

Startup time for the clock

management system when the

XTAL is in standby.

2.3 5.3 µs 1