8XC196KB datasheet(13/17 Pages) INTEL

13 / 17 page

AUTOMOTIVE 8XC196KB

AC TESTING INPUT OUTPUT WAVEFORMS

270679 – 7

AC Testing inputs are driven at 24V for logic ‘‘1’’ and 045V for a

logic ‘‘0’’ Timing measurements are made at 20V for a logic ‘‘1’’

and 08V for logic ‘‘0’’

FLOAT WAVEFORMS

270679 – 8

For timing purposes a port pin is no longer floating when a 100

mV change from load voltage occurs and begins to float when a

100 mV change from the loading VOH VOL level occurs IOL IOH

15 mA

EXPLANATION OF AC SYMBOLS

Each symbol is two pairs of letters prefixed by ‘‘t’’ for

time The characters in a pair indicate a signal and

its condition respectively Symbols represent the

time between the two signalcondition points

Conditions

Signals

High

Address

ALEADV

Low

BHE

Valid

CLKOUT W

WR WRH WRI

No Longer Valid D

Data

XTAL1

Floating

GBuswidth

Ready

AC CHARACTERISTICSSERIAL PORTSHIFT REGISTER MODE

SERIAL PORT TIMINGSHIFT REGISTER MODE

Test Conditions TCeb40 Cto a125 C VCC e 50V g10% VSS e 00V Load Capacitance e 80 pF

Symbol

Parameter

Min

Max

Unit

TXLXL

Serial Port Clock Period(9)

6TOSC 4 TOSC

TXLXH

Serial Port Clock Falling Edge

4 TOSCb502 TOSCb50 4 TOSCa502 TOSCb50 ns

to Rising Edge(9)

TQVXH

Output Data Setup to Clock Rising Edge

2 TOSCb50

TXHQX

Output Data Hold after Clock Rising Edge

2 TOSCb50

TXHQV

Next Output Data Valid

2 TOSCa50

after Clock Rising Edge

TDVXH

Input Data Setup to Clock Rising Edge

TOSCa50

TXHDX(8) Input Data Hold after Clock Rising Edge

TXHQZ(8) Last Clock Rising to Output Float

TOSC

NOTES

8 Parameter not tested

9 Baud Rate Register t 8002HBaud Rate Register e 8001H

8XC196KB 数据表(PDF) 13 Page - Intel Corporation

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