Rainbow-electronics DS1215 Manual de usuario descargar pdf (Pagina 9)

DS1215

032697 9/15

AC ELECTRICAL CHARACTERISTICS ROM/RAM = V

CCO

(0°C to 70°C; V

CC

= 5V ± 10%)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

Read Cycle Time t

RC

120 ns

CEI Access Time t

CO

100 ns

OE Access Time t

OE

100 ns

CEI to Output in Low Z t

COE

10 ns

OE to Output in Low Z t

OEE

10 ns

CEI to Output in High Z t

OD

40 ns

OE to Output in High Z t

ODO

40 ns

Address Setup Time t

AS

20 ns

Address Hold Time t

AH

10 ns

Read Recovery t

RR

20 ns

Write Cycle Time t

WC

120 ns

CEI Pulse Width t

CW

100 ns

OE Pulse Width t

OW

100 ns

Write Recovery t

WR

20 ns 4

Data Setup Time t

DS

40 ns 5

Data Hold Time t

DH

10 ns 5

RST Pulse Width t

RST

200 ns

CEI Propagation Delay t

PD

5 10 20 ns 2, 3

CEI High to Power Fail t

PF

0 ns

AC ELECTRICAL CHARACTERISTICS ROM/RAM = V

CCO

(0°C to 70°C; V

CC

< 4.5V)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

Recovery at Power–Up t

REC

2 ms

V

CC

Slew Rate 4.5 – 3.0V t

F

0 ms

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

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