TMS3637 datasheet(51/53 Pages) TI

51 / 53 page

6–19

Table 6–8 TMS3637 Programming Station Parts List (continued)

PART

DESCRIPTION

FUNCTION

U14

TMC3637

Remote Control

Transmitter/Receiver

U14 transmits or receives specific

user-configuration code

Q1, Q2

TI 2N2222

npn Transistor

Q1 and Q2 are emitter followers that output the

programming pulse

CR1

1N4148

Silicon Diode

CR1 is a blocking diode when an external

oscillator is used

SW1 – SW4

16-Pin DIP switch

SW1 – SW4 select input coding

SW5

SPST Momentary Switch

SW5 when closed resets the device

6.9

TMS3637 Connector Pinout

TI recommends a ZIF socket to be used at location U14 for ease of programming the TMS3637. For

TMS3637P (DIP) packages, a 16-pin ZIF can be used (lower portion unused). For TMS3637N

surface-mount packages, use a clamshell with a latch cover and DIP footprint. This can be purchased from

EmMulation Technology (408-982-0660) part # AS-0808-015-3. The edge connector that is compatible with

the TMS3637 PCB is a Sullins part # EZC10DRTH or the equivalent as shown in Table 6–9. Ground

terminals A1, A6, and B1 are common, so only one is needed for ground connection.

Table 6–9. Edge-Connector Pinout

EDGE CONNECTOR

FUNCTION

Ground

N/C

Ground

N/C

5 Vdc

A10

N/C

Ground

17 Vdc

N/C

See Note 1

5 Vdc

B10

N/C (see Note 2)

NOTES:

1. Other edge connections are connected to various

parts of circuit. These are for testing purposes

only.

2. N/C = Not connected

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