7

SP(START)

Shift register start pulse

8

GND

Ground; 0V

9

CP(CLOCK)

Sampling clock pulse

10

Vn

Negative power supply

11

GLED

Ground for the light source; 0V

12

VLED

Supply for the light source

Table 1. Pin configuration

Module Versus LED Light Source

Table 2 lists the module's model and its corresponding LED Light Source.

Module

LED Light Source

PI227MC-A4

660 nm RED LED Bar

PI228MC-A4

High power Yellow-Green LED Bar

PI229MC-A4

Low power Yellow-Green LED Bar

Table 2. Module Vs LED Light Source

Absolute Maximum Rating:

Table 3A shows the absolute maximum ratings. The parameters are common to all three

modules. Table 3B shows the absolute maximum ratings that are different among the

three modules.

Parameter

Symbols

Maximum Rating

Units

Vdd

7

V

Idd

100

ma

Vn

-15

V

Power Supply

In

35

ma

Input clock pulse

(high level)

Vih

Vdd – 0.5V

V

Input clock pulse

(low level)

Vil

-0.5

V

Note: These parameters are absolute maximums do not operate under these conditions.

Table 3A. Electrical Absolute Maximum Rating

Parameter

Symbols

Maximum Rating

Units

Module

PI227MC-A4

PI228MC-A4

PI229MC-A4

VLED

6.0

6.0

6.0

V

Power Supply:

LED light source

ILED

0.7

1.30

1.30

A

Note: These parameters are absolute maximums do not operate under these conditions

.

Table 3B. LED Power Absolute Maximum Rating

PAGE 4 OF 10 - PI227/228/229, 01-31-04