SA9203/5

sames

12/14

FIGURE 16: µP Read Waveforms Latched Output

Table 1: AC Characteristics for µP Interface1 - TA = 0°C to 70°C, VDD = 5V 10%

Symbol Parameter

Min

Max

Units

t

AL

Address to Latch Setup Time

10

ns

t

LA

Address Hold Time after Latch

10

ns

t

LC

Latch to READ/WRITE Control

10

ns

t

RD

Valid Data Out Delay from READ Control

50

ns

t

LD

Latch to Data Out Valid

50

ns

t

AD

Address Stable to Data Out Valid

100

ns

t

LL

Latch Enable Width

30

ns

t

RDF

Data Bus Float after READ

0

40

ns

t

CL

READ/WRITE Control to Latch Enable

10

ns

t

CLL

WRITE Control to Latch Enable

50

ns

t

CC

READ/WRITE Control Width

60

ns

t

DW

Data in to WRITE Setup Time

20

ns

t

WD

Data in Hold Time after WRITE

20

ns

t

RV

Recovery Time between READ/WRITE

50

ns

t

RDE

Data Bus Enable from READ Control

10

ns

FIGURE 15: I/O Port Waveforms Transparent Output

DATA BUS *

DR 01273

INPUT

RD

X

PR

t

DATA VALID

RP

t

OUTPUT

DR-01274

DATA BUS *

WR

X

DATA VALID

WP

t

X