P87C511 datasheet(16/21 Pages) INTEL

Il numero della parte	P87C511

Spiegazioni elettronici	CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

PDF	21 Pages

Scroll/Zoom	100%

Produttore elettronici	INTEL [Intel Corporation]

Homepage	http://www.intel.com

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16 / 21 page

87C5180C51BH80C31BH

SERIAL PORT TIMINGSHIFT REGISTER MODE

12 MHz

24 MHz

Variable Oscillator

Symbol

Parameter

Oscillator

Units

Min

Max

Min

Max

Min

Max

TXLXL

Serial Port Clock

0500

12TCLCL

Cycle Time

TQVXH

Output Data Setup

700

284

10TCLCLb133

to Clock Rising Edge

TXHQX

Output Data Hold

After Clock

Rising Edge

87C51BH

2TCLCLb117

87C51-24BH-24

2TCLCLb34

TXHDX

Input Data Hold

After Clock

Rising Edge

TXHDV

Clock Rising Edge

700

283

10TCLCLb133

to Input Data Valid

SHIFT REGISTER MODE TIMING WAVEFORMS

272335 – 18

AC TESTING INPUT OUTPUT WAVEFORMS

272335 – 19

AC inputs during testing are driven at VCC b 05 for a Logic ‘‘1’’

and 045V for a Logic ‘‘0’’ Timing measurements are made at VIH

min for a Logic ‘‘1’’ and VIL max for a Logic ‘‘0’’

FLOAT WAVEFORMS

272335 – 20

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 loaded VOH VOL level occurs

IOL IOH e g20 mA

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