SAB-80C535-N Просмотр технического описания (PDF) - Infineon Technologies

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SAB-80C535-N

8-Bit CMOS Single-Chip Microcontroller

Infineon Technologies 

SAB 80C515/80C535

AC Characteristics

VCC = 5 V ± 10%; VSS = 0 V (CL for Port 0, ALE and PSEN outputs = 100 pF;

CLfor all outputs = 80 pF); TA = 0 to 70 ˚C for SAB 80C515/80C535

TA = – 40 to 85 ˚C for SAB 80C515/80C535-T40/85

Parameter

Symbol

Limit values

Unit

12 MHz clock

min. max.

Variable clock

1/tCLCL = 3.5 MHz to 12 MHz

min.

max.

Program Memory Characteristics

ALE pulse width

Address setup to ALE

Address hold after ALE

ALE to valid instruction

in

t LHLL

t AVLL

t LLAX

t LLIV

127 –

2 tC LCL – 40 –

ns

53

–

tC LCL – 30

–

ns

48

–

tC LCL – 35

–

ns

–

233 –

4 tC LCL – 100 ns

ALE to PSEN

t LLPL

PSEN pulse width

t PLPH

PSEN to valid instruction tPLIV

in

58

–

tC LCL – 25

–

ns

215

3 tC LCL – 35

ns

–

150 –

3 tC LCL – 100 ns

Input instruction hold

t PXIX

0

–

0

–

ns

after PSEN

Input instruction float

after PSEN

t PXIZ 1)

–

63

–

tC LCL – 20

ns

Address valid after

tPXAV 1) 75

tC LCL – 8

ns

PSEN

Address to valid instruc- tA VIV

–

tion in

302 –

5 tC LCL – 115 ns

Address float to PSEN tA ZPL

0

–

0

–

ns

1) Interfacing the SAB 80C515 to devices with float times up to 75 ns is permissible.

This limited bus contention will not cause any damage to port 0 drivers.

Semiconductor Group

40

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