Philips Semiconductors

Product specification

TPM749

Microcontroller with TrackPoint

™ microcode from IBM

2

1996 May 01

853-1831 16753

DESCRIPTION

The Philips Semiconductors TPM749 is a small package, low cost,

ROM-coded 80C51 with IBM

®’s TrackPoint™ pointing algorithms

and control code. TrackPoint is the result of years of human factors

research and innovation at IBM. The result is a “velocity sensitive”

pointing solution more efficient and easier to use than “position

sensitive” devices such as the mouse, the trackball, or the touchpad.

IBM has licensed Philips Semiconductors to sell microcontrollers

with TrackPoint code. By purchasing a TPM from Philips, the

purchaser becomes a sub-licensee of Philips. The selling price of

Philips’ TPM includes the royalties for IBM’s intellectual property,

which Philips in turn pays to IBM. Customers for TPMs do not need

to sign any licensing agreement with either IBM or Philips. This code

is the intellectual property of IBM, which is covered by numerous

patents, and must be treated accordingly.

The TPM is fabricated with Philips high-density CMOS technology.

Philips epitaxial substrate minimizes CMOS latch-up sensitivity.

The TPM contains a 2k

× 8 ROM, a 64 × 8 RAM, 21 I/O lines, a

16-bit auto-reload counter/timer, a fixed-priority level interrupt

structure, an on-chip oscillator, a five channel multiplexed 8-bit A/D

converter, and an 8-bit PWM output.

The TPM supports two power reduction modes of operation referred

to as the idle mode and the power-down mode.

FEATURES

– 28-pin Shrink Small Outline Package (SSOP)

– 28-pin PLCC

– Normal operation: less than 11mA @ 5V, 12MHz

– Idle mode

– Power-down mode

PIN CONFIGURATION

1

2

3

4

5

6

7

8

9

10

11

12

14

13

15

16

17

18

19

20

21

22

23

24

P3.4/A4

P3.3/A3

P3.2/A2/A10

P3.1/A1/A9

P3.0/A0/A8

P0.2

RST

X2

X1

P0.0/ASEL

P1.4/ADC4/D4

P1.5/INT0/D5

P1.6/INT1/D6

P1.7/T0/D7

P0.3

P0.4/PWM OUT

P3.7/A7

P3.6/A6

P3.5/A5

SHRINK

SMALL

OUTLINE

PACKAGE

PLASTIC

LEADED

CHIP

CARRIER

4

1

26

5

11

25

19

12

18

P0.1/OE

25

26

27

28

P1.0/ADC0/D0

P1.1/ADC1/D1

P1.3/ADC3/D3

P1.2/ADC2/D2

Pin

Function

1

P3.4/A4

2

P3.3/A3

3

P3.2/A2/A10

4

P3.1/A1/A9

5

P3.0/A0/A8

6

P0.2

7

P0.1/OE

8

P0.0/ASEL

9

RST

10

X2

11

X1

12

13

P1.0/ADC0/D0

14

P1.1/ADC1/D1

Pin

Function

15

P1.2/ADC2/D2

16

P1.3/ADC3/D3

17

P1.4/ADC4/D4

18

19

20

P1.5/INT0/D5

21

P1.6/INT1/D6

22

P1.7/T0/D7

23

P0.3

24

P0.4/PWM OUT

25

P3.7/A7

26

P3.6/A6

27

P3.5/A5

28

SU00692A

ORDERING INFORMATION

ORDERING CODE

TEMPERATURE RANGE AND PACKAGE

DRAWING NUMBER

PTPM749 A

0 to +70

°C, Plastic Leaded Chip Carrier

SOT261-3

PTPM749 DB

0 to +70

°C, Shrink Small Ouline Package

SOT341-1

For compatible pointing device, contact:

COMPANY

CONTACT

TELEPHONE

Bokam Engineering

Ms. Jane Kamenster

(714)513-2200

CTS Corporation

Mr. Dave Poole

(219)589-7169

IBM is a registered trademark, and TrackPoint is a trademark of IBM Corporation.