L9803 datasheet(119/126 Pages) STMICROELECTRONICS

119 / 126 page

L9803

Electrical Characteristics

119/126

7.5

Control Timing

(Operating conditions T

j = -40 to +150°C, VB=12V unless otherwise specified)

VOL

Output Low Level Voltage

I=-5mA

1.0

I=-1.6mA

0.4

VOH

Output High Level Voltage

I=5mA

3.1

I=1.6mA

3.4

Input Leakage Current

GND<VPIN<VDD

-10

µA

IRPU

Pull-up Equivalent Resistance

VIN=GND

250

Ω

Tohl

Output H-L Fall Time

Cl=50pF

Tolh

Output L-H Rise Time

Cl=50pF

All voltage are referred to GND unless otherwise specified.

Halt mode is not allowed if Watchdog or Safeguard are enabled

A current of 5mA can be forced on each pin of the digital section without affecting the functional behaviour of the device.

Table 18.

DC Electrical Characteristics(1) (continued)

Symbol

Parameter

Conditions

Min.

Typ.

Max

Unit

Table 19.

Control Timing

Symbol

Parameter

Conditions

Value

Unit

Min.

Typ.

Max

OSC

Oscillator Frequency

0(1)

MHz

CPU

Operating Frequency

0(2)

8MHz

External RESET

Input pulse Width

1.5

CPU

PORL

Internal Power Reset Duration

4096

CPU

DOGL

Watchdog or Safeguard RESET

Output Pulse Width

500

DOG

Watchdog Time-out

fcpu = 8 MHz

12,288

1.54

786,432

98.3

CPU

tOXOV

Crystal Oscillator

Start-up Time

DDR

Power up rise time

100

With Safeguard disabled, A/D operations and Oscillator start-up are not garanteed below 1MHz

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