PCA1673U データシートの表示（PDF） - Philips Electronics

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PCA1673U

32 kHz watch circuits using a silver-oxide or a 3 V lithium battery

Philips Electronics 

Philips Semiconductors

32 kHz watch circuits using a silver-oxide

or a 3 V lithium battery

Product specification

PCA167x series

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL

PARAMETER

VDD

supply voltage

VI

all input voltages

output short-circuit duration

Tamb

Tstg

operating ambient temperature

storage temperature

CONDITIONS

VSS = 0 V; note 1

MIN.

−1.8

VSS

−10

−30

MAX.

+6

VDD

indefinite

+60

+100

UNIT

V

V

°C

°C

Note

1. Connecting the battery with reversed polarity does not destroy the circuit, but in this condition a large current flows,

which will rapidly discharge the battery.

HANDLING

Inputs and outputs are protected against electrostatic discharges in normal handling. However, to be totally safe, it is

advisable to take handling precautions appropriate to handling MOS devices. Advice can be found in

“Data Handbook IC16, General, Handling MOS Devices”.

CHARACTERISTICS

VDD = 1.55 V; VSS = 0 V; fosc = 32.768 kHz; Tamb = 25 °C; crystal: RS = 20 kΩ; C1 = 2 to 3 fF; CL = 8 to 10 pF;

C0 = 1 to 3 pF; unless otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX. UNIT

Supply

VDD

∆VDD

IDD1

IDD2

IDD3

IDD4

supply voltage

supply voltage variation

supply current

supply current

supply current

supply current

Tamb = −10 to +60 °C

1.2

1.5

transient;

VDD = 1.2 to 3.5 V

−

−

between motor pulses −

150

between motor pulses; −

200

VDD = 3.5 V

stop mode; pin 8

connected to VDD

−

180

stop mode; pin 8

connected to VDD;

VDD = 3.5 V

−

300

3.5

V

0.25

V

250

nA

350

nA

300

nA

480

nA

1998 Apr 03

4

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