S I GN U M

S Y S T E M S

4

FIGURE 8

The 20-pin JTAG ADA-JET-ARM20-LV

probe for ARM.

FIGURE 9

The pinout of the ADA-JET-

ARM20-LV probe. Top view.

Cable Extender

In addition to its standard version shown on page 3, the 20-pin probe is offered in a version with a 1.55 in.

ribbon cable extender that allows the probe to remain outside the target board by lowering the probe’s profile.

(The 14-pin probe comes always with a ribbon cable extender.)

Ribbon Cable

D

C

L

FIGURE 10 Top and side views of the 20-pin ARM probe with a cable extender. L = 69 mm (2.7

in.), C = 40.0 mm (1.55 in) D = 6.0 mm (.24), W = 30.0 mm (1.2 in.), H = 11.5 mm (0.45 in.).

Target Board Header

On the target board, we recommend using a polarized box header, such as:

TABLE 3 Recommended target

board headers.

1 4 - PI N

2 0 - PI N

14-Pin, Double-Row, Polarized Box

Header-Straight, .100" × .100" (2.54

mm × 2.54 mm). Manufacturers:



3M (Mouser Electronics, Part No.

517—2514-6002).



tyco/AMP, Part No. 103308-2 –

Digi-Key Part No A26269-ND.

20-Pin, Double-Row, Polarized Box

Header-Straight, .100" × .100" (2.54

mm × 2.54 mm). Manufacturers:



3M (Mouser Electronics, Part No.

517—2520-6002).



tyco/AMP, Part No. 103308-5 –

Digi-Key Part No. A26273-ND.