AB08X5-RTC datasheet(14/33 Pages) ABRACON

14 / 33 page

AB08X5 Real-Time Clock Family

Date of Issue: October 16, 2014

3.0 x 3.0 mm

Page 14 of 33

Abracon Drawing #453567

Revision: C

5.5 VCC Supply Current

Table 8 lists the current supplied into the VCC power input under various conditions.

 For Table 8, TA = -40 °C to 85 °C, VBAT = 0 V to 3.6 V

TYP values at 25 °C, MAX values at 85 °C, VCC Power state

Table 8: VCC Supply Current

SYMBOL

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

IVCC:I2C

VCC supply current during I2C

burst read/write

400kHz bus speed, 2.2k pull-up

resistors on SCL/SDA(1)

3.0V

µA

1.8V

1.5

IVCC:SPIW

VCC supply current during SPI

burst write

2 MHz bus speed (2)

3.0V

µA

1.8V

IVCC:SPIR

VCC supply current during SPI

burst read

2 MHz bus speed (2)

3.0V

µA

1.8V

IVCC:XT

VCC supply current in XT oscil-

lator mode

Time keeping mode with XT

oscillator running(3)

3.0V

330

1.8V

290

IVCC:RC

VCC supply current in RC oscil-

lator mode

Time keeping mode with only

the RC oscillator running (XT

oscillator is off)(3)

3.0V

220

1.8V

170

IVCC:ACAL

Average VCC supply current in

Autocalibrated

oscillator

mode

Time keeping mode with only

RC oscillator running and Auto-

calibration enabled.

ACP =

512 seconds(3)

3.0V

235

1.8V

190

(1) Excluding external peripherals and pull-up resistor current. All other inputs (besides SDA and SCL) are at 0V or VCC.

AB0805 only. Test conditions: Continuous burst read/write, 0x55 data pattern, 25

s between each data byte, 20 pF load

on each bus pin.

(2) Excluding external peripheral current. All other inputs (besides SDI, nCE and SCL) are at 0V or VCC. AB0815 only. Test

conditions: Continuous burst write, 0x55 data pattern, 25

s between each data byte, 20 pF load on each bus pin.

(3) All inputs and outputs are at 0 V or VCC

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