UR8HC007-0A4-FQ Просмотр технического описания (PDF) - Semtech Corporation

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UR8HC007-0A4-FQ

Zero-Power™ Input Device and Power Management IC

Semtech Corporation 

PIN DEFINITIONS

Pin Numbers

Mnemonic

Power Supply

VDD

AVREF

AVSS

VSS

VSS1

Reset

_RESET

QFP

71

72

73

30

24

Typ

PWR

AI

PWR

PWR

PWR

25

I

Oscillator pins

OSCI

_OSCO

Scanned

matrix pins

ROW0-ROW7

COL0-COL7

COL8-COL11

COL12-COL13

COL14-COL15

28

I

29

O

62-55 I

54-47 I/nD

38-35

27-26

79-78

Name and Function

Positive Supply Voltage

Positive analog reference

voltage

Ground: analog signal

Ground: negative supply voltage

Auxiliary Ground; must be tied to

pin 30

Controller hardware reset pin:

when at Low-level, this pin holds the

UR8HC007in a reset state. This pin

must be held at a logic-low until Power

Supply voltage (VDD) reaches the

minimum operating level (2.7V).

Oscillator input: connect ceramic

resonator with built-in load capacitors

or CMOS clock from external oscillator

Oscillator Output: connect ceramic

resonator with built-in load capacitors

or keep open if external oscillator

is used

Row matrix outputs

Column matrix outputs

Copyright ©1998-2001 Semtech Corporation

3

DOC8-007-0A4 -DS-104

www.semtech.com

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