eKM8053

USB & PS/2 Optical Mouse Controller

3

Revision1.01 (5300)

2006/7/11

This specification is subject to be changed without notice

◆ eKM8053C (20-Pin) for 3D5Buttons

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4 3 2 1 20191817

CPIS

20

L KEY

19

(0,0)

R KEY

18

+

M KEY

17

SCLK

16

P KEY/K_OP

15

VSS

14

□ 5

16 □

VSS

13

□ 6

15 □

V3.3

12

□ 8

9

10111213 14 □

OSCI

11

□

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eKM8053C (20-Pin)

Bounding PAD

Symbol

I/O

PIN

Function

CPIS

I

1

400/800 CPI Selection Pin ; V3.3 : 800 CPI ; GND : 400 CPI

L KEY

I

2

Left Key Input

R KEY

I

3

Right Key Input

M KEY

I

4

Middle Key Input

SCLK

I/O

5

Serial Clock to Agilent sensor IC SCLK

K_OP

I

6

3D3K/3D5K Selection Pin，Connect to V3.3 for 3D3K；Pull Low 1Mohm to GND for 3D5K

P KEY

I

6

Previous KEY Input

-

7,8

GND

O

9

3.3V DC voltage output from internal regulator. This pin has to be tied to a 4.7μF capacitor.

OSCI

I

10

6MHz ceramic resonator input.

OSCO

I/O

11

Return path for 6-MHz ceramic resonator.

-

12

5 V Power Input

D- / DATA

I/O

13

USB D- or PS/2 Data I/O

D+ / CLK

I/O

14

USB D+ or PS/2 CLK I/O

N KEY

I

15

Next KEY Input

SDIO

I/O

16

Serial Data from Agilent sensor IC SDIO

PD

I

17

2051 Power Down Pin

IR_C

I/O

18

IR Control Pin#1

Z2

I

19

Z axis Input 2

Z1

I

20

Z axis Input 1