XLT28QFN4 Microchip Technology, XLT28QFN4 Datasheet - Page 16

SOCKET TRANS ICE 28QFN W/CABLE

XLT28QFN4

Manufacturer Part Number
XLT28QFN4
Description
SOCKET TRANS ICE 28QFN W/CABLE
Manufacturer
Microchip Technology
Datasheets

Specifications of XLT28QFN4

Module/board Type
*
Convert From
28-DIP
Convert To
28-QFN
Pitch Spacing
0.025"
Svhc
No SVHC (15-Dec-2010)
Ic Adapter Type
Transition Socket
Mounting Type
Through Hole
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
MPLAB™ICE
For Use With
AC162067 - HEADER INTRFC MPLAB ICD2 40/28PDAF18-4 - DEVICE ADAPTER FOR ICE4000DAF30-4 - DEVICE ATP FOR ICE4000DVA18XP280 - DEVICE ADAPTER 18F2220 PDIP 28LD
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Transition Socket Specification
PLCC TRANSITION SOCKET
A PLCC transition socket and associated hardware is
shown in Figure 3.
FIGURE 3: PLCC TRANSITION SOCKET
The PLCC transition socket is required for use along
with the PLCC device adapters. The DAF18-1 device
adapter is equipped with eight socket strips that inter-
face with one of two transition sockets. The DAF18-3
device adapter is equipped with four socket strips that
interface with one transition socket.
The PLCC transition sockets are designed with a
threaded insert in the center of the footprint so that a
4/40 screw can securely fasten the transition socket to
the device adapter.
The PLCC transition sockets are designed to be sol-
dered to the target PCB PLCC surface mount pattern or
inserted into a PLCC socket on the target PCB.
Microchip offers the following PLCC transition sockets:
• XLT44L2: One 44-lead PLCC transition socket
RECOMMENDED PCB LAYOUT
DS51194S-page 16
Note:
0.024”
To avoid solder bridging, do not place vias
within 0.025-inch of the PLCC footprint.
Also, any vias near the PLCC should be
directly on the centerline of the pad.
0.050”
PLCC Transition Socket
0.865”
PLCC Device Adapter
Cable to Processor Module
Target/Application Board
0.074”
XLT44L2
44-lead PLCC (0.050”)
*Caution: Pin 1 on the device adapter side (top of socket)
is 180 degrees from pin 1 on the target side (bottom of
socket).
1.27mm typ. [0.050”]
21.93mm
[0.863”]
1.27mm typ. [0.050”]
2.79mmx45° [0.110”]
27.94mm [1.100”]
TOP VIEW
FRONT/SIDE
 2010 Microchip Technology Inc.
VIEW
0.43mm typ. [0.017”]
20.32mm
[0.800”]
14.94mm
[0.588”]
27.94mm
[1.100”]

Related parts for XLT28QFN4