Rainbow-electronics DS1384 Manual de usuario descargar pdf (Pagina 12)

DS1384

12 of 17

AC ELECTRICAL CHARACTERISTICS (0°C to 70°C; V

CC

= 5.0V ±10%)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

Read Cycle Time t

RC

120 ns

Address Access Time t

ACC

120 ns

CE Access Time

t

CO

120 ns

CE Data Off Time

t

CEZ

40 ns

Output Enable Access

Time

t

OE

60 ns

Output Enable Data

Off Time

t

OEZ

40 ns

Output Enable to DQ

Low-Z

t

OEL

5ns

CE to DQ Low-Z

t

CEL

10 ns

Output Hold from Address t

OH

5ns

CE to CEO Low or High

t

CEPD

25 ns

OE Low to OER Low

A0-A16 > 00040h

t

OERL

20 ns

OE High to OER High

Time

t

RO

20 ns

Address 00040h-1FFFFh

to OER Low

t

AOEL

50 ns

Address 00000h-0003Fh to

OER High

t

AOEH

40 ns

Write Cycle Time t

WC

120 ns

Address Setup Time t

AW

0ns

CE Pulse Width

t

CEW

120 ns

Address Hold from

End of Write

t

AH

10 ns

Write Pulse Width t

WP

80 ns

CE Data Off Time

t

CEZ

40 ns

WE Data Off Time

t

WEZ

40 ns

WE or CE Inactive Time

t

WR

10 ns

Data Setup Time t

DS

45 ns

Data Hold Time High t

DH

0ns

INTA and INTB Pulse

Width

t

IPW

3ms

AC TEST CONDITIONS

Input Levels: 0V to 3V

Transition Times: 5 ns

1 2 ... 7 8 9 10 11 12 13 14 15 16 17

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