Unless otherwise noted, limits printed in bold characters are guaranteed for V

−40˚C to +85˚C by correlation with 100% electrical testing at T

production tests and/or product design and characterization. Typical values are specified at V

Symbol

Parameter

Conditions

Min

Typ

Max

Units

t

HDCEL

Hold Time, CE low after

15

ns

PSCK/ASCK High

t

SUCEH

Setup Time, CE High Before

15

ns

PSCK/ASCK Low

t

TRBH

TRB Hold Time

From CE Low

20

ns

t

TRBS

TRB Setup Time

From ASCK Low and PSCK Low

20

ns

t

IS

TSI, RSI Setup Time

From ASCK Low and PSCK Low

20

ns

t

IH

TSI, RSI Hold Time

From ASCK Low and PSCK Low

20

ns

t

PSCK/ASCK

PSCK/ASCK High and

55

ns

Low Times

t

ON

TSO, RSO Turn On Time

From CE High

40

ns

t

OD

TSO, RSO Propagation

From ASCK High or PSCK High

40

ns

Delay Time

t

OFF

TSO, RSO Turn Off Time

From CE Low

20

ns

(Valid Data to TRI-STATE)

t

CS

Setup Time for Control

From CE Low

Signals (INIT, EN,

20

ns

PCM1, QSEL1, QSEL0)

t

CH

Hold Time for Control

From CE Low

Signals (INIT, EN,

20

ns

PCM1, QSEL1, QSEL0)

t

RSTL

RSTB Pulse Width Low

2

CLK

Cycles

t

RSTH

RSTB High to the First

6

CLK

CE High-Low Transition

Cycles

Note 5: Values for 8 full-duplex (decoding and encoding) or 16 half-duplex (decoding or encoding) channels operation in a 125 µs period.

11

www.national.com