MDEV-868-PRC datasheet(8/55 Pages) LINX

8 / 55 page

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Pin Assignments

There are three version of the module. The standard version is the smallest.

The other versions have mostly the same pin assignments, but the antenna

is routed to either a castellation (-CAS) or a U.FL connector (-UFL),

depending on the part number ordered.

Figure 14: HumPRCTM Series Transceiver Standard Version Pin Assignments (Top View)

Pin Descriptions

Pin Number

Name

I/O Description

1, 2, 3, 4, 5,

6, 7, 8

S0–S71

I/O

Status Lines. Each line can be configured

as either an input to register button or

contact closures or as an output to control

application circuitry.

9, 14, 15, 16,

17, 18, 20,

25, 32

GND

—

Ground

This line sets the input/output direction for

status lines S0-S3. When low, the lines are

outputs; when high they are inputs. Do not

leave floating.

This line sets the input/output direction for

status lines S4-S7. When low, the lines are

outputs; when high they are inputs. Do not

leave floating.

POWER_DOWN

Power Down. Pulling this line low places the

module into a low-power state. The module

is not functional in this state. Pull high for

normal operation. Do not leave floating.

Pin Descriptions

678

9 10 11 12 13

29 28 27 26 25 24 23 22 21

ANT

GND

ACK_OUT

MODE_IND

GND

678

9 10 11 12 13

29 28 27 26 25 24 23 22 21

ACK_OUT

MODE_IND

GND

ANT

Figure 13: HumPRCTM Series Transceiver Encapsulated Version Pin Assignments - Castellation Connection (Top View)

678

9 10 11 12 13

29 28 27 26 25 24 23 22 21

ACK_OUT

MODE_IND

GND

Figure 15: HumPRCTM Series Transceiver Encapsulated Version Pin Assignments - UFL Connection (Top View)

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