74ABT821 datasheet(8/16 Pages) NXP

Part #	74ABT821

Description	10-bit D-type flip-flop; positive-edge trigger; 3-state

PDF	16 Pages

Scroll/Zoom	100%

Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

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8 / 16 page

74ABT821_3

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Product data sheet

Rev. 03 — 25 February 2010

8 of 16

NXP Semiconductors

74ABT821

10-bit D-type ﬂip-ﬂop; positive-edge trigger; 3-state

VM = 1.5 V.

VOL and VOH are typical voltage output levels that occur with the output load.

Fig 6.

3-state output (Qn) enable and disable times

VM = 1.5 V

The shaded areas indicate when the input is permitted to change for predictable output

performance.

Fig 7.

Set-up and hold times data input (Dn) to clock (CP)

001aal299

tPLZ

tPHZ

outputs

disabled

outputs

enabled

VOH − 0.3 V

VOL + 0.3 V

outputs

enabled

output

LOW-to-OFF

OFF-to-LOW

output

HIGH-to-OFF

OFF-to-HIGH

OE input

VOL

VOH

3.5 V

GND

tPZL

tPZH

001aac738

CP input

tsu(H)

th(H)

tsu(L)

th(L)

Dn input

GND

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