NXP Semiconductors
74HC240; 74HCT240
Octal buffer/line driver; 3-state; inverting
Table 1.
Ordering information
…continued
Package
Temperature range Name
Description
plastic small outline package; 20 leads;
body width 7.5 mm
plastic shrink small outline package; 20 leads;
body width 5.3 mm
Version
SOT163-1
SOT339-1
−40 °C
to +125
°C
−40 °C
to +125
°C
−40 °C
to +125
°C
−40 °C
to +125
°C
SO20
SSOP20
TSSOP20
Type number
74HCT240D
74HCT240DB
74HCT240PW
74HCT240BQ
plastic thin shrink small outline package; 20 leads; SOT360-1
body width 4.4 mm
DHVQFN20 plastic dual-in-line compatible thermal enhanced
SOT764-1
very thin quad flat package; no leads; 20 terminals;
body 2.5
×
4.5
×
0.85 mm
4. Functional diagram
2
1A0
1Y0
18
4
1A1
1Y1
16
6
1A2
1Y2
14
1
8
EN
18
16
14
12
15
17
1
1A3
1Y3
12
2
2
17
4
15
6
13
8
11
1
19
1A0
2A0
1A1
2A1
1A2
2A2
1A3
2A3
1OE
2OE
mgu779
1OE
1Y0 18
2Y0 3
1Y1 16
2Y1 5
4
6
8
2A0
2Y0
3
2A1
2Y1
5
19
1Y2 14
2Y2
7
11
1Y3 12
2Y3 9
13
15
17
EN
9
7
5
3
mgu778
13
2A2
2Y2
7
11
2A3
2Y3
9
19
2OE
mgu780
Fig 1. Logic symbol
Fig 2. IEC logic symbol
Fig 3. Functional diagram
74HC_HCT240_3
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 03 — 2 August 2007
2 of 18
PHILIPS [ NXP SEMICONDUCTORS ]
