C8051F98X View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

MFG CO.

C8051F98X

Ultra Low Power, 8-2 kB Flash, Capacitive Sensing MCU

Silicon Laboratories 

C8051F99x-C8051F98x

Table 4.16. Capacitive Sense Electrical Characteristics

VDD = 1.8 to 3.6 V; TA = –40 to +85 °C unless otherwise specified.

Parameter

Conditions

Min Typ Max Units

Single Conversion Time1

12-bit Mode

20

25

40

µs

13-bit Mode (default)

21

27 42.5

14-bit Mode

23

29

45

16-bit Mode

26

33

50

Number of Channels

24-pin Packages

17

Channels

20-pin Packages

16

Capacitance per Code

Default Configuration

—

1

—

fF

Maximum External 

Capacitive Load

CS0CG = 111b (Default)

CS0CG = 000b

—

45

—

pF

— 500 —

pF

Maximum External 

Series Impedance

CS0CG = 111b (Default)

—

50

—

k

Power Supply Current

CS module bias current, 25 °C

—

50 60

µA

CS module alone, maximum code

output, 25 °C

—

90 125

µA

Wake-on-CS threshold (suspend mode — 130 180

µA

with regulator and CS module on)3

Notes:

1. Conversion time is specified with the default configuration.

2. RMS Noise is equivalent to one standard deviation. Peak-to-peak noise encompasses ±3.3 standard

deviations. The RMS noise value is specified with the default configuration.

3. Includes only current from regulator, CS module, and MCU in suspend mode.

Rev. 1.0

63

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