Rainbow Electronics DS9034PCX User Manual

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FEATURES

 Provides 10 years of battery backup power for

Nonvolatile Timekeeping RAMs in the
PowerCap Module package (PCM)

 Snaps directly onto surface-mounted

PowerCap Module Boards

 Detachment feature allows easy removal
 Compatible with these 34-pin PowerCap

Module boards:

- DS1386P - DS1543P/YP/WP

- DS1486P - DS1553P/YP/WP

- DS1643P - DS1554P/YP/WP

- DS1644P - DS1556P/YP/WP

- DS1646P - DS1557P/YP/WP

- DS1647P - DS1744P/YP/WP

- DS1743P/WP - DS1746P/YP/WP

- DS1251YP/WP - DS1747P/YP/WP

- DS1248YP/WP

- DS1244YP/WP

DS9034PCX

PowerCap™ with Crystal

PIN DESCRIPTION

V

- +3 Volt Battery Output

BAT

GND - Ground
X1, X2 - 32.768 kHz Crystal Connections

ABSOLUTE MAXIMUM RATINGS*

Operating Temperature -40°C TO +85°C
Storage Temperature -40°C TO +85°C

BATTERY CHARACTERISTICS

Nominal Voltage 3V
Nominal Capacity 130 mAhr
Chemistry Li(CF)x
Data Retention Life 10 Years (25°C)

Nominal Frequency 32.768 kHz
Load Capacitance 6 pF

* This is a stress rating only and functional
operation of the device at these or any other
conditions above those indicated in the operation
sections of this specification is not implied.
Exposure to absolute maximum rating conditions
for extended periods of time may affect
reliability.

DESCRIPTION

The DS9034PCX PowerCap is designed to be a lithium power source for Nonvolatile Time-keeping
RAMs in Dallas Semiconductor’s directly surface-mountable PowerCap Module (PCM) package. After a
PowerCap Module Board has been soldered in place and clean ed, the DS9034PCX PowerCap is placed
on top of the PCM Board to form a complete PowerCap Module package. The PowerCap is keyed to
prevent incorrect attachment. The DS9034PCX can be easily removed by inserting a regular screwdriver
into a detachment feature and prying gently outward and upward to release the PowerCap from the
PowerCap Module Board.

CRYSTAL CHAR ACTERISTI CS

1 of 3 110999

POWERCAP ATTACHMENT AND REMOVAL

3. Pushdown and forward with screwdriver while inserting the PowerCap. This
action will “open” the attachment feature.

DS9034PCX

POWERCAP REMOVAL

2 of 3