4D product information for

Battery backed Real Time Clock (RTC) for PandaBoard

Image of Battery backed Real Time Clock (RTC) for PandaBoard
Extra image of Battery backed Real Time Clock (RTC) for PandaBoard
Product Title: Battery backed Real Time Clock (RTC) for PandaBoard
Manufacturer/Publisher: 4D
Stock Code: 4D-PANDA-RTC
QuickCode: 17649
Format: Hardware
Product Group: Pandaboard, Titanium & IGEPv5 systems & Accessories
Condition: New
Availability: Usually available from stock

A plug-in battery backed-up Real Time Clock module for the PandaBoard & Pandaboard ES.

Real Time Clock chip: Maxim DS1338
Cell (Battery): CR1220
Crystal Accuracy: 20ppm (better than 1 minute a month)
Battery Capacity: Approximately five years.
Suitable for original PandaBoard & PandaBoard ES.
Plugs into 'Expansion connector A'

Real Time Clock Module
CR1220 Battery (Supplied but unfitted)
Fitting Instructions

Linux Software:
The standard DS1307 RTC driver will work with the module

RISC OS support:
RISC OS support for the RTC is built in.

NB. This plugs onto "Expansion Connector A", which will need to be fitted to your PandaBoard. If you don't have this fitted, you can purchase a set of pins to solder in here.

Trade and volume enquiries welcome.

More information:
The RTC board has been designed so that as much of the expansion header is available as possible with a mixture of direct accessibility and pass through.

The board plugs into pins 1-6 and 23-28
Pins 7-22 can be accessed by plugging in connectors of the type reset switches normally use.
The pass through/ancillary connector (J3) on our board has:
2 SDA (level shifted to 5V)
3 SCL (level shifted to 5V)
4 5V
5 SQW/OUT from clock (DS1338) at 5V level
6 ALERT from temperature sensor (MCP9801) at 5v level (if fitted)
7 Pin 3 (GPMC_AD7/SDMMC2_DAT7) via a 150R/Q1 for possible filing system activity LED (active low)
8 5V for GPIO LED if in use

We have fitted the board inside a Tigal case and being 1.1" high it is no higher than the USB/Network socket so should also fit other cases including Special Computing's acrylic case.

Price: £44.00 no VAT to pay!
Free UK delivery on orders of £10 or more! (exceptions apply)

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Last updated: Fri, 31 Jul 2020