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SS7646

8/21/2004 Rev.2.01

ABSOLUTE MAXIMUM RATINGS

PIN DESCRIPTIONS

VDD to GND…………………………….……...………. -0.3V to +6V

Analog Input to GND…………………………... -0.3V to VDD +0.3V

Digital Input to GND………………………...… -0.3V to VDD +0.3V

Operating Temperature Range……….……… -40°C to +85°C

Maximum Junction Temperature……….………………… +150°C

Storage Temperature Range……………….…..… -60°C to +150°C

Lead Temperature (Soldering, 10s)………………..……… +300°C

CAUTION: Stresses above those listed in “Absolute Maximum

Ratings” may cause permanent damage to the device. This is a

stress only rating and operation of the device at these or any other

conditions above those indicated in the operational sections of this

specification is not implied.

Electrostatic

Discharge Sensitivity

This device can be damaged by ESD. Silicon Standard

recommends that all integrated circuits be handled with appropriate

precautions. Failure to observe proper handling and installation

procedures can cause damage. ESD damage can range from

subtle performance degradation to complete device failure.

Pin

Name

Description

1

Power Supply, 2.2V to 5.5V.

2

X+

X+ Input; ADC Input Channel 1.

3

Y+

Y+ Input; ADC Input Channel 2.

4

X-

X- Input.

5

Y-

Y- Input; ADC Input Channel 3.

6

GND

Ground.

7

Battery Monitor Input; ADC Input Channel 4.

8

Auxiliary Input; ADC Input Channel 5.

9

Reference Voltage Input / Output.

10

Power Supply, 2.2V to 5.5V.

11

/PENIRQ Pen Interrupt. Requires 10kΩ to 100kΩ

external pull-up resistor.

12

DOUT

Serial Data Output. This output pin is high

impedance when /CS is high.

13

BUSY

Busy Output. This output pin is high

impedance when /CS is high.

14

DIN

Serial Data Input.

15

/CS

Chip Select Input. This input is active low.

16

DCLK

External Clock Input.

BLOCK DIAGRAM

/CS

DCLK

DIN

DOUT

BUSY

/PENIRQ

Y-

6-Channel

MUX

X+

Y+

X-

VDD

CHARGE

REDISTRIBUTION

DAC

COMP

SAR CONTROL LOGIC

SERIAL

INTERFACE

Battery

Monitor

Temperature

Sensor

Internal

2.5V Reference

Figure 1. Block Diagram of SS7646