Rainbow-electronics DS1315 Uživatelský manuál stáhnout pdf (Strana 13)

DS1315

041697 13/22

AC ELECTRICAL OPERATING CHARACTERISTICS

ROM/RAM

= V

CCO

(0°C to 70°C; V

CC

= 3.3 ± 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 Low Z t

COE

5 ns

OE to Output Low Z t

OEE

5 ns

CEI to Output High Z t

OD

40 ns

OE to Output High Z t

ODO

40 ns

Address Setup Time t

AS

10 ns

Address Hold Time t

AH

10 ns

Read Recovery t

RR

20 ns

Write Cycle 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 t

DS

45 ns 5

Data Hold Time t

DH

0 ns 5

RST Pulse Width t

RST

120 ns

CEI Propagation Delay t

PD

5 ns 2, 3, 12

CAPACITANCE (t

A

= 25°C)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

Input Capacitance C

IN

10 pF

Output Capacitance C

OUT

10 pF

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 21 22

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