© 2002 Microchip Technology Inc.

DS21431B-page 3

TC520A

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings*

Storage Temperature Range .............. -65°C to +150°C

*Stresses above those listed under "Absolute Maximum Rat-

ings" may cause permanent damage to the device. These are

stress ratings only and functional operation of the device at

these or any other conditions above those indicated in the

operation sections of the specifications is not implied. Expo-

sure to Absolute Maximum Rating conditions for extended

periods may affect device reliability.

TC520A ELECTRICAL SPECIFICATIONS

Symbol

Parameters

Min

Typ

Max

Unit

Test Conditions

Supply

Operating Voltage Range

4.5

5

5.5

V

Supply Current

—

0.8

1.5

mA

Input Characteristics

Low Input Voltage

—

—

0.8

V

High Input Voltage

2.0

—

—

V

Input Leakage Current

—

—

10

µA

Pull-down Current (CE)—

5

—

µA

Pull-up Current (READ,LOAD)—

5

—

µA

Low Output Voltage

—

0.2

0.3

V

High Output Voltage

3.5

4.3

—

V

—

—

250

nsec

Crystal Frequency

—

1.0

4.0

MHz

—

6.0

MHz

Timing Characteristics

READ Delay Time

250

—

—

nsec

Data Read Setup Time

1

—

—

µsec

450

—

—

nsec

LOAD Setup Time

1

—

—

µsec

Data Load Setup Time

50

—

—

nsec

150

—

—

nsec

150

—

—

nsec

Load Default Low Time

250

—

—

nsec

Load Default Setup Time

250

—

—

nsec

Parameter

Integrator ZERO Time

—

0.5

—

msec

Auto zero (RESET) Time at Power-Up

—

100

—

msec