74HC299(2016) Просмотр технического описания (PDF) - NXP Semiconductors.
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74HC299 Datasheet PDF : 20 Pages
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Nexperia
11. Waveforms
74HC299
8-bit universal shift register; 3-state
9,
,2Q'65'6/
LQSXWV
*1'
9,
&3LQSXW
*1'
92+
,2Q44
RXWSXWV
92/
90
WK
WVX
IPD[
90
W:
W3+/
90
W7+/
WK
WVX
W3/+
W7/+
DDL
Fig 6.
The shaded areas indicate when the input is permitted to change for predictable output performance.
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Clock pulse to outputs I/On, Q0, Q7 propagation delays, the clock pulse width, the I/On, DSR and DSL to
clock pulse set-up and hold times, the output transition times and the maximum clock frequency
9,
05LQSXW
*1'
9,
&3LQSXW
*1'
92+
,2Q44
RXWSXWV
92/
90
W:
WUHF
90
W3+/
90
DDL
Fig 7.
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
The master reset pulse width (LOW), the master reset to outputs I/On, Q0, Q7 propagation delays and the
master reset to clock pulse removal time
74HC299
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 26 February 2016
© Nexperia B.V. 2017. All rights reserved
11 of 20
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