74AHC273 데이터 시트보기 (PDF) - NXP Semiconductors.
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74AHC273 Datasheet PDF : 18 Pages
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NXP Semiconductors
74AHC273; 74AHCT273
Octal D-type flip-flop with reset; positive-edge trigger
5. Pinning information
5.1 Pinning
74AHC273
74AHCT273
MR 1
Q0 2
D0 3
D1 4
Q1 5
Q2 6
D2 7
D3 8
Q3 9
GND 10
20 VCC
19 Q7
18 D7
17 D6
16 Q6
15 Q5
14 D5
13 D4
12 Q4
11 CP
001aai066
Fig 5. Pin configuration SO20 and TSSOP20
terminal 1
index area
74AHC273
74AHCT273
Q0 2
D0 3
D1 4
Q1 5
Q2 6
D2 7
D3 8
Q3 9
GND(1)
19 Q7
18 D7
17 D6
16 Q6
15 Q5
14 D5
13 D4
12 Q4
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Transparent top view
(1) The die substrate is attached to this pad using
conductive die attach material. It can not be used as a
supply pin or input.
Fig 6. Pin configuration DHVQFN20
5.2 Pin description
Table 2.
Symbol
MR
Q0
D0
D1
Q1
Q2
D2
D3
Q3
GND
CP
Q4
D4
D5
Q5
Q6
Pin description
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Description
master reset input (active LOW)
flip-flop output
data input
data input
flip-flop output
flip-flop output
data input
data input
flip-flop output
ground (0 V)
clock input (LOW-to-HIGH edge-triggered)
flip-flop output
data input
data input
flip-flop output
flip-flop output
74AHC_AHCT273_3
Product data sheet
Rev. 03 — 13 May 2008
© NXP B.V. 2008. All rights reserved.
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