Connection Diagrams

28-Pin PLCC

TLH10803 – 3

Top View

Order Number TP3465V

See NS Package Number V28A

FIGURE 2. MICROWIRE Interface Device MID TP3465 Pinouts

Pin Description

Name

Pin No.

Type

Function

28 Pkg.

28

I

+5V Supply

GND

14

I

0V

CKIN

17

I

Master Clock Input Used to Derive the SK Clock

MICROWIRE Interface

The MICROWIRE Interface consists of SK (clock out) SO (data out) SI (data in) and up to 8 chip select output lines

Name

Pin No.

Type

Function

28 Pkg.

SK

13

O

MICROWIRE clock output.

SO

15

O/I

MICROWIRE data output. Can also be used for

MICROWIRE data input when communicating with special

devices See application section

SI

16

I

MICROWIRE data input.

CS0 - CS3

24 - 27

I/O

Four input/output lines, normally used as outputs for chip

selects to MICROWIRE peripherals

CS4 ± CS7

6, 9, 20,

I/O

Four chip select lines accessible

23

when using the Multiplexed bus mode.

2