Texas Instruments TMS370 User Manual

Page 25

Properly Installing the Programmer Hardware

1-11

1.3.5

Integrated Circuit (IC) Insertion

ICs may be inserted or removed while power is applied to the programmer;
however:

1) When using the microcontroller programmer, never use

more than one IC socket at a time. Damage to the IC or the
programmer could result.

2) Never insert or remove the IC while the red LED is on. Dam-

age to the IC or the programmer could result.

3) TMS devices contain circuits to protect their inputs and out-

puts against damage due to electrostatic discharges of up to
2 kV. However, you should employ the usual precautions
when handling MOS devices, such as storing the device in
conductive foam and grounding yourself when handling
them.

For the microcontroller programmer, decide which of the sockets (U1, U2, U3,
U4, or U5) to use for your device. Figure 1–3, shows the circuit board and IC
sockets.

Figure 1–3. Socket Identification

370Cx10 DIP

370Cx10 PLCC

Set to left for 2732
Set to right for 2764, 27128,
and 27256

{

pin 1

2764, 27128, and 27256

pin 1

2732 pin 1

2732

2764
27128
27256

370Cx5x PLCC

370Cx32 PLCC