DAC7821 datasheet(4/18 Pages) TI

4 / 18 page

www.ti.com

DATA VALID

R/W

DATA

TIMING REQUIREMENTS: 2.5 V to 4.5 V

TIMING REQUIREMENTS: 4.5 V to 5.5 V

DAC7821

SBAS365A – OCTOBER 2005 – REVISED FEBRUARY 2006

TIMING INFORMATION

At t

r = tf = 1 ns (10% to 90% of VDD) and timed from a voltage level of (VIL + VIH)/2; VDD = +2.5 V to +4.5 V, VREF = +10 V,

OUT2 = 0 V. All specifications –40°C to +125°C, unless otherwise noted.

DAC7821

PARAMETER(1)

TEST CONDITIONS

MIN

TYP

MAX

UNIT

R/W to CS setup time

R/W to CS hold time

CS low time (write cycle)

Data setup time

Data hold time

R/W high to CS low

CS min high time

Data access time

Bus relinquish time

(1)

Ensured by design; not production tested.

At t

r = tf = 1 ns (10% to 90% of VDD) and timed from a voltage level of (VIL + VIH)/2; VDD = +4.5 V to +5.5 V, VREF = +10 V,

OUT2 = 0 V. All specifications –40°C to +125°C, unless otherwise noted.

DAC7821

PARAMETER(1)

TEST CONDITIONS

MIN

TYP

MAX

UNIT

R/W to CS setup time

R/W to CS hold time

CS low time (write cycle)

Data setup time

Data hold time

R/W high to CS low

CS min high time

Data access time

Bus relinquish time

(1)

Ensured by design; not production tested.

DAC7821 Datasheet(PDF) 4 Page - Texas Instruments

DAC7821 Datasheet(HTML) 4 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Datasheet Download

Link URL