C504 datasheet(39/49 Pages) SIEMENS

39 / 49 page

Semiconductor Group

C504

AC Characteristics for C504-L / C504-2R

CC = 5 V + 10%, – 15%; VSS =0V

A = 0 to 70 °C

for the SAB-C504

A = – 40 to 85 °C

for the SAF-C504

A = – 40 to 110 °C

for the SAH-C504

A = – 40 to 125 °C

for the SAK-C504

(

L for port 0, ALE and PSEN outputs = 100 pF; CL for all other outputs = 80 pF)

Program Memory Characteristics

Interfacing the C504 to devices with float times up to 75 ns is permissible. This limited bus contention will not

cause any damage to port 0 drivers.

Parameter

Symbol

Limit Values

Unit

12-MHz clock

Variable Clock

CLCL = 3.5 MHz to

12 MHz

min.

max.

min.

max.

ALE pulse width

LHLL

127

–

CLCL –40

–

Address setup to ALE

AVLL

–

CLCL –40

–

Address hold after ALE

LLAX

–

CLCL –23

–

ALE low to valid instr in

LLIV

–

233

–

CLCL – 100

ALE to PSEN

LLPL

–

CLCL –25

–

PSEN pulse width

PLPH

215

–

CLCL –35

–

PSEN to valid instr in

PLIV

–

150

–

CLCL – 100

Input instruction hold after PSEN

PXIX

–

0–ns

Input instruction float after PSEN

PXIZ

–63

–

CLCL –20

Address valid after PSEN

PXAV

–

CLCL –8

–

Address to valid instr in

AVIV

–

302

–

CLCL – 115

Address float to PSEN

AZPL

–

0–ns

C504 Datasheet(PDF) 39 Page - Siemens Semiconductor Group

C504 Datasheet(HTML) 39 Page - Siemens Semiconductor Group

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

Datasheet Download

Link URL