The module has two B2B (board-to-board) connectors (JM4 and JM5) with the following features:

• gender: female
• overall number of contacts: 160
• contacts per connector: 80
• rows per connector: 2
• pitch: 1.27 mm = 50 mil = .050"

Trenz Electronic recommends to mate the standard B2B connectors with the following ones:

• 2 x W+P 6110-080-00-10-PPTR 1.27 mm (50 mil = .050") pitch 80-pin double row boxed plug (male) header board-to-board (B2B) connectors.

 This connector couple offers the following two advantages:

• the module is protected against polarity inversion;
• the connection presents a mechanical resistance sufficient for most applications.

Ordering codes for connectors JM4 / JM5 and their mating connectors are given in the table below.

The mating height of connectors 6060-080-46-00-10-10-PPTR and 6110-080-00-10-PPTR is 6mm.
Connectors JM4 and JM5 can mate also with any 1.27 mm (50 mil = .050") pitch male header connectors with up to 2 × 40 pins.

Connectors JM4 and JM5 and are placed on the bottom side of the module as shown in the figure below.

Signal Integrity Consideration  

 Traces of differential signals pairs are :

• NOT routed symmetrically (as symmetric pairs).
  
• NOT routed with equal length.
• routed with a differential impedance between the two traces of 60 ohm.

For applications where traces length has to be matched or timing differences have to be compensated, Table 42 and Table 43 list the trace length of I/O signal lines measured from FPGA balls to B2B connector pins.

Pairs of pins that form a differential I/O pair appear colored together in the table. An electronic version of these pin-out tables are available for download from the Trenz Electronic support area of the web site.

Hardware Design Requirement

PUDC_B (pull-up during configuration, active Low) pin in TE0320 modules is hard-wired high, determining user-I/O pins to float before and during configuration. Turning off pull-up resistors in hot-swap or hot-insertion applications, disables potential current paths to the I/O power rail. However, external pull-up or pull-down resistors may be required on each individual I/O pin depending on the specific application.