ST7282A5 - ST7282B5 - ROM FROM EPROM

Family

Issuer Ref.

Chrono

March 26, 1997

Previous Ref

Edition

ST7

PG-RO

97115

7282A5B5

Target C

Page 4/23

1.2.3 Electrical Characteristics

The values given in the specifications of dedicated functions are generally not applicable for chips. There-

fore, only the limits listed below are valid for the product. T = -40 ... +85°C, V

specified.

PARAMETER

SYMBOL

CONDITION

MIN

TYP

MAX

UNIT

Supply voltage

4.5

-

5.5

V

Supply current Run Mode

no output load

-10

20

mA

Supply current Wait Mode

WD, Timer, LCD active

-3

5

mA

Supply current slow wait mode

no output load

-

0.7

2

mA

Supply current halt mode

no output load

-

-

100

µA

Supply current Reset Mode

f=8.55MHz

-10

15

mA

Display voltage

-7

V

Supply voltage differences

--

50

mV

OSCILLATOR:

Input/output cap Cin, Cout

8.55

-

8.55

8

9.00

8.55

20

pF

MHz

ms

RESET:

Input voltage high

Input voltage low

Crystal

-

-

-

+50

+10

-

-

-

+100

+20

1

-

µA

µA

mA

V

V

POWER-ON RESET

Supply rise time

Trigger level on

Trigger level off

10%-90%

.01

10

1.4

-

-

-

.-

-

10

-

-

3

ms

ms

V

V

RDS FILTER:

Center frequency

3dB Bandwith

Gain

Attenuation

Input impedance

Load impedance

MPX input signal

fc

BW

G

A

∆f = ±4 KHz

f = 38 KHz

f = 67 KHz

56.5

2.5

18

18

50

35

100

1

170

57

3

20

22

80

50

160

-

250

57.5

3.5

22

-

-

-

200

-

600

KHz

KHz

dB

dB

dB

dB

K

Ω

M

Ω