74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
Rev. 2 — 26 November 2010 Product data sheet
1. General description
The 74AHC240 and 74AHCT240 are 8-bit inverting buffer/line drivers with 3-state outputs. These devices can be used as two 4-bit buffers or one 8-bit buffer. They feature two output enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Inputs are over voltage tolerant. This feature allows the use of these devices as translators in mixed voltage environments.
2. Features and benefits
Balanced propagation delays All inputs have a Schmitt-trigger action Inputs accepts voltages higher than VCC For 74AHC240 only: operates with CMOS input levels For 74AHCT240 only: operates with TTL input levels ESD protection: HBM JESD22-A114F exceeds 2000 V CDM JESD22-C101D exceeds 1000 V Multiple package options Specified from 40 C to +85 C and from 40 C to +125 C
3. Ordering information
Table 1. Ordering information Package Temperature range 74AHC240D 74AHCT240D 74AHC240PW 74AHCT240PW 74AHC240BQ 74AHCT240BQ 40 C to +125 C DHVQFN20 40 C to +125 C TSSOP20 40 C to +125 C Name SO20 Description plastic small outline package; 20 leads; body width 7.5 mm plastic thin shrink small outline package; 20 leads; body width 4.4 mm Version SOT163-1 SOT360-1 Type number
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
NXP Semiconductors
74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
4. Functional diagram
1
EN 18 16 14 12
2 2 17 4 15 6 13 8 11 1 19 1A0 2A0 1A1 2A1 1A2 2A2 1A3 2A3 1OE 2OE
mgu779
1Y0 18 2Y0 3 1Y1 16 2Y1 5
4 6 8
19 1Y2 14 2Y2 7 11 13 15 17
EN 9 7 5 3
mgu778
1Y3 12 2Y3 9
Fig 1.
Logic symbol
Fig 2.
IEC logic symbol
5. Pinning information
5.1 Pinning
74AHC240 74AHCT240
1OE 2 3 4 5 6 7 8 9 GND 10 2A3 11 GND(1) 1 terminal 1 index area 20 VCC 19 2OE 18 1Y0 17 2A0 16 1Y1 15 2A1 14 1Y2 13 2A2 12 1Y3
74AHC240 74AHCT240
1OE 1A0 2Y0 1A1 2Y1 1A2 2Y2 1A3 2Y3 1 2 3 4 5 6 7 8 9 20 VCC 19 2OE 18 1Y0 17 2A0 16 1Y1 15 2A1 14 1Y2 13 2A2 12 1Y3 11 2A3
001aal192
1A0 2Y0 1A1 2Y1 1A2 2Y2 1A3 2Y3
GND 10
001aal193
Transparent top view
(1) This is not a supply pin. The substrate is attached to this pad using conductive die attach material. There is no electrical or mechanical requirement to solder this pad. However, if it is soldered, the solder land should remain floating or be connected to GND.
Fig 3.
74AHC_AHCT240
Pin configuration SO20 and TSSOP20
Fig 4.
Pin configuration DHVQFN20
© NXP B.V. 2010. All rights reserved.
All information provided in this document is subject to legal disclaimers.
Product data sheet
Rev. 2 — 26 November 2010
2 of 16
NXP Semiconductors
74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
5.2 Pin description
Table 2. Symbol 1OE 2OE Pin description Pin 1 19 Description output enable input (active LOW) output enable input (active LOW) data input data input data output data output ground (0 V) power supply
1A0, 1A1, 1A2, 1A3 2, 4, 6, 8 2A0, 2A1, 2A2, 2A3 17, 15, 13, 11 1Y0, 1Y1, 1Y2, 1Y3 18, 16, 14, 12 2Y0, 2Y1, 2Y2, 2Y3 3, 5, 7, 9 GND VCC 10 20
6. Functional description
Table 3. Control nOE L L H
[1]
Function table[1] Input nAn L H X Output nYn H L Z
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
7. Limiting values
Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V). Symbol VCC VI IIK IOK IO ICC IGND Tstg Ptot
[1] [2]
Parameter supply voltage input voltage input clamping current output clamping current output current supply current ground current storage temperature total power dissipation
Conditions
Min 0.5 0.5
Max +7.0 +7.0 20 25 75 +150 500
Unit V V mA mA mA mA mA C mW
VI < 0.5 V VO < 0.5 V or VO > VCC + 0.5 V VO = 0.5 V to (VCC + 0.5 V)
[1] [1]
20 75 65
Tamb = 40 C to +125 C
[2]
-
The minimum input and output voltage ratings may be exceeded if the input and output current ratings are observed. For SO20 package: above 70 C the value of Ptot derates linearly with 8.0 mW/K. For TSSOP20 package: above 60 C the value of Ptot derates linearly with 5.5 mW/K. For DHVQFN20 package: above 60 C the value of Ptot derates linearly with 4.5 mW/K.
74AHC_AHCT240
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 26 November 2010
3 of 16
NXP Semiconductors
74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
8. Recommended operating conditions
Table 5. Symbol 74AHC240 VCC VI VO Tamb t/V 74AHCT240 VCC VI VO Tamb t/V supply voltage input voltage output voltage ambient temperature input transition rise and fall rate VCC = 5 V 0.5 V 4.5 0 0 40 5.0 +25 5.5 5.5 VCC +125 20 V V V C ns/V supply voltage input voltage output voltage ambient temperature input transition rise and fall rate VCC = 3.3 V 0.3 V VCC = 5 V 0.5 V 2.0 0 0 40 5.0 +25 5.5 5.5 VCC +125 100 20 V V V C ns/V ns/V Recommended operating conditions Parameter Conditions Min Typ Max Unit
9. Static characteristics
Table 6. Static characteristics At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter 74AHC240 VIH HIGH-level input voltage VCC = 2.0 V VCC = 3.0 V VCC = 5.5 V VIL LOW-level input voltage VCC = 2.0 V VCC = 3.0 V VCC = 5.5 V VOH HIGH-level VI = VIH or VIL output voltage IO = 50 A; VCC = 2.0 V IO = 50 A; VCC = 3.0 V IO = 50 A; VCC = 4.5 V IO = 4.0 mA; VCC = 3.0 V IO = 8.0 mA; VCC = 4.5 V VOL LOW-level VI = VIH or VIL output voltage IO = 50 A; VCC = 2.0 V IO = 50 A; VCC = 3.0 V IO = 50 A; VCC = 4.5 V IO = 4.0 mA; VCC = 3.0 V IO = 8.0 mA; VCC = 4.5 V
74AHC_AHCT240
Conditions Min 1.5 2.1 3.85 1.9 2.9 4.4 2.58 3.94 -
25 C Typ 2.0 3.0 4.5 0 0 0 Max 0.5 0.9 1.65 0.1 0.1 0.1 0.36 0.36
40 C to +85 C 40 C to +125 C Unit Min 1.5 2.1 3.85 1.9 2.9 4.4 2.48 3.80 Max 0.5 0.9 1.65 0.1 0.1 0.1 0.44 0.44 Min 1.5 2.1 3.85 1.9 2.9 4.4 2.40 3.70 Max 0.5 0.9 1.65 0.1 0.1 0.1 0.55 0.55 V V V V V V V V V V V V V V V V
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 26 November 2010
4 of 16
NXP Semiconductors
74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
Table 6. Static characteristics …continued At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter II IOZ input leakage current Conditions Min VI = 5.5 V or GND; VCC = 0 V to 5.5 V 25 C Typ Max 0.1 0.25 40 C to +85 C 40 C to +125 C Unit Min Max 1.0 2.5 Min Max 2.0 10.0 A A
OFF-state VI = VIH or VIL; output current VO = VCC or GND; VCC = 5.5 V supply current VI = VCC or GND; IO = 0 A; VCC = 5.5 V input capacitance output capacitance HIGH-level input voltage LOW-level input voltage VCC = 4.5 V to 5.5 V VCC = 4.5 V to 5.5 V VI = VCC or GND
ICC CI CO
-
3 4
4.0 10 -
-
40 10 -
-
80 10 -
A pF pF
74AHCT240 VIH VIL VOH 2.0 0.8 2.0 0.8 2.0 0.8 V V
HIGH-level VI = VIH or VIL; VCC = 4.5 V output voltage IO = 50 A IO = 8.0 mA LOW-level VI = VIH or VIL; VCC = 4.5 V output voltage IO = 50 A IO = 8.0 mA input leakage current VI = 5.5 V or GND; VCC = 0 V to 5.5 V
4.4 3.94 -
4.5 0 -
0.1 0.36 0.1 0.25
4.4 3.80 -
0.1 0.44 1.0 2.5
4.4 3.70 -
0.1 0.55 2.0 10.0
V V V V A A
VOL
II IOZ
OFF-state VI = VIH or VIL; output current VO = VCC or GND per input pin; other inputs at VCC or GND; IO = 0 A; VCC = 5.5 V supply current VI = VCC or GND; IO = 0 A; VCC = 5.5 V additional per input pin; supply current VI = VCC 2.1 V; other pins at VCC or GND; IO = 0 A; VCC = 4.5 V to 5.5 V input capacitance output capacitance VI = VCC or GND
ICC ICC
-
-
4.0 1.35
-
40 1.5
-
80 1.5
A mA
CI CO
-
3 4
10 -
-
10 -
-
10 -
pF pF
74AHC_AHCT240
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 26 November 2010
5 of 16
NXP Semiconductors
74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
10. Dynamic characteristics
Table 7. Dynamic characteristics Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 7. Symbol Parameter Conditions Min 74AHC240 tpd propagation delay nAn to nYn; see Figure 5 VCC = 3.0 V to 3.6 V; CL = 15 pF VCC = 3.0 V to 3.6 V; CL = 50 pF VCC = 4.5 V to 5.5 V; CL = 15 pF VCC = 4.5 V to 5.5 V; CL = 50 pF ten enable time nOE to nYn; see Figure 6 VCC = 3.0 V to 3.6 V; CL = 15 pF VCC = 3.0 V to 3.6 V; CL = 50 pF VCC = 4.5 V to 5.5 V; CL = 15 pF VCC = 4.5 V to 5.5 V; CL = 50 pF tdis disable time nOE to nYn; see Figure 6 VCC = 3.0 V to 3.6 V; CL = 15 pF VCC = 3.0 V to 3.6 V; CL = 50 pF VCC = 4.5 V to 5.5 V; CL = 15 pF VCC = 4.5 V to 5.5 V; CL = 50 pF CPD power dissipation capacitance VI = GND to VCC; CL = 50 pF; fi = 1 MHz
[3] [2] [2] [2]
25 C Typ[1] Max
40 C to +125 C Min Max (85 C) Max (125 C)
Unit
-
3.9 5.8 2.8 4.2 4.4 5.8 3.1 4.1 5.3 8.9 3.9 6.2 9
7.5 11.0 4.8 7.3 10.0 13.5 6.5 8.5 9.0 13.0 5.8 8.7 -
1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 -
8.6 12.5 5.7 8.5 12.0 15.5 7.7 10.0 10.0 14.5 6.5 9.5 -
10.8 15.6 7.1 10.6 19.4 19.4 12.5 12.5 18.1 18.1 8.1 11.8 -
ns ns ns ns ns ns ns ns ns ns ns ns pF
74AHC_AHCT240
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 26 November 2010
6 of 16
NXP Semiconductors
74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
Table 7. Dynamic characteristics …continued Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 7. Symbol Parameter Conditions Min 74AHCT240 tpd propagation delay nAn to nYn; see Figure 5 VCC = 4.5 V to 5.5 V; CL = 15 pF VCC = 4.5 V to 5.5 V; CL = 50 pF ten enable time nOE to nYn; see Figure 6 VCC = 4.5 V to 5.5 V; CL = 15 pF VCC = 4.5 V to 5.5 V; CL = 50 pF tdis disable time nOE to nYn; see Figure 6 VCC = 4.5 V to 5.5 V; CL = 15 pF VCC = 4.5 V to 5.5 V; CL = 50 pF CPD power dissipation capacitance VI = GND to VCC; CL = 50 pF; fi = 1 MHz
[3] [2] [2] [2]
25 C Typ[1] Max
40 C to +125 C Min Max (85 C) Max (125 C)
Unit
-
3.0 4.4 3.4 4.5 3.9 6.2 9
5.8 8.4 7.5 9.5 6.1 8.7 -
1.0 1.0 1.0 1.0 1.0 1.0 -
6.8 9.5 9.0 11.5 6.7 9.2 -
8.5 11.9 14.4 14.4 8.3 11.5 -
ns ns ns ns ns ns pF
[1] [2] [3]
Typical values are measured at nominal supply voltage (VCC = 3.3 V and VCC = 5.0 V). tpd is the same as tPLH and tPHL; ten is the same as tPZH and tPZL; tdis is the same as tPLZ and tPHZ. CPD is used to determine the dynamic power dissipation (PD in W). PD = CPD VCC2 fi N + (CL VCC2 fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in V; N = number of inputs switching; (CL VCC2 fo) = sum of outputs.
11. Waveforms
VI nAn input GND tPHL VOH nYn output VOL
mgu781
VM
VM
tPLH
VM
VM
Measurement points are given in Table 8. VOL and VOH are typical voltage output drop that occur with the output load.
Fig 5.
Propagation delay input (nAn) to output (nYn)
74AHC_AHCT240
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 26 November 2010
7 of 16
NXP Semiconductors
74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
VI nOE input GND tPLZ VCC nYn output LOW-to-OFF OFF-to-LOW VOL tPHZ VOH nYn output HIGH-to-OFF OFF-to-HIGH GND outputs enabled outputs disabled outputs enabled
mgu782
VM
tPZL
VM VX tPZH VY VM
Measurement points are given in Table 8. VOL and VOH are typical voltage output drop that occur with the output load.
Fig 6. Table 8. Type
Enable and disable times Measurement points Input VM 0.5VCC 1.5 V Output VM 0.5VCC 0.5VCC VX VOL + 0.3 V VOL + 0.3 V VY VOH 0.3 V VOH 0.3 V
74AHC240 74AHCT240
74AHC_AHCT240
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 26 November 2010
8 of 16
NXP Semiconductors
74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
VI negative pulse 0V
tW 90 % VM 10 % tf tr tr tf 90 % VM 10 % tW VM VM
VI positive pulse 0V
VCC
VCC
G
VI
VO
RL
S1
DUT
RT CL
open
001aad983
Test data is given in Table 9. Definitions test circuit: RT = Termination resistance should be equal to output impedance Zo of the pulse generator. CL = Load capacitance including jig and probe capacitance. RL = Load resistance. S1 = Test selection switch.
Fig 7. Table 9. Type
Load circuitry for switching times Test data Input VI tr, tf 3.0 ns 3.0 ns VCC 3.0 V Load CL 15 pF, 50 pF 15 pF, 50 pF RL 1 k 1 k S1 position tPHL, tPLH open open tPZH, tPHZ GND GND tPZL, tPLZ VCC VCC
74AHC240 74AHCT240
74AHC_AHCT240
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 26 November 2010
9 of 16
NXP Semiconductors
74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
12. Package outline
SO20: plastic small outline package; 20 leads; body width 7.5 mm SOT163-1
D
E
A X
c y HE vMA
Z 20 11
Q A2 A1 pin 1 index Lp L 1 e bp 10 wM detail X (A 3) θ A
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 2.65 0.1 A1 0.3 0.1 A2 2.45 2.25 A3 0.25 0.01 bp 0.49 0.36 c 0.32 0.23 D (1) 13.0 12.6 0.51 0.49 E (1) 7.6 7.4 0.30 0.29 e 1.27 0.05 HE 10.65 10.00 L 1.4 Lp 1.1 0.4 Q 1.1 1.0 0.043 0.039 v 0.25 0.01 w 0.25 0.01 y 0.1 Z
(1)
θ 8o o 0
0.9 0.4
0.012 0.096 0.004 0.089
0.019 0.013 0.014 0.009
0.419 0.043 0.055 0.394 0.016
0.035 0.004 0.016
Note 1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. OUTLINE VERSION SOT163-1 REFERENCES IEC 075E04 JEDEC MS-013 JEITA EUROPEAN PROJECTION
ISSUE DATE 99-12-27 03-02-19
Fig 8.
Package outline SOT163-1 (SO20)
All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved.
74AHC_AHCT240
Product data sheet
Rev. 2 — 26 November 2010
10 of 16
NXP Semiconductors
74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm
SOT360-1
D
E
A
X
c y HE vMA
Z
20
11
Q A2 pin 1 index A1 (A 3) A
θ Lp L
1
e bp
10
wM detail X
0
2.5 scale
5 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A max. 1.1 A1 0.15 0.05 A2 0.95 0.80 A3 0.25 bp 0.30 0.19 c 0.2 0.1 D (1) 6.6 6.4 E (2) 4.5 4.3 e 0.65 HE 6.6 6.2 L 1 Lp 0.75 0.50 Q 0.4 0.3 v 0.2 w 0.13 y 0.1 Z (1) 0.5 0.2 θ 8o o 0
Notes 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. Plastic interlead protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT360-1 REFERENCES IEC JEDEC MO-153 JEITA EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-19
Fig 9.
Package outline SOT360-1 (TSSOP20)
All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved.
74AHC_AHCT240
Product data sheet
Rev. 2 — 26 November 2010
11 of 16
NXP Semiconductors
74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
DHVQFN20: plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; SOT764-1 20 terminals; body 2.5 x 4.5 x 0.85 mm
D
B
A
A A1 E c
terminal 1 index area
detail X
terminal 1 index area e 2 L
e1 b 9 vMCAB wM C y1 C
C y
1 Eh 20
10 e 11
19 Dh 0
12 X 2.5 scale 5 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A(1) max. 1 A1 0.05 0.00 b 0.30 0.18 c 0.2 D (1) 4.6 4.4 Dh 3.15 2.85 E (1) 2.6 2.4 Eh 1.15 0.85 e 0.5 e1 3.5 L 0.5 0.3 v 0.1 w 0.05 y 0.05 y1 0.1
Note 1. Plastic or metal protrusions of 0.075 mm maximum per side are not included. OUTLINE VERSION SOT764-1 REFERENCES IEC --JEDEC MO-241 JEITA --EUROPEAN PROJECTION ISSUE DATE 02-10-17 03-01-27
Fig 10. Package outline SOT764-1 (DHVQFN20)
74AHC_AHCT240 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 26 November 2010
12 of 16
NXP Semiconductors
74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
13. Abbreviations
Table 10. Acronym CDM CMOS DUT ESD HBM TTL Abbreviations Description Charge Device Model Complementary Metal Oxide Semiconductor Device Under Test ElectroStatic Discharge Human Body Model Transistor-Transistor Logic
14. Revision history
Table 11. Revision history Release date Data sheet status Product data sheet Product data sheet Change notice Supersedes 74AHC_AHCT240 v.1 Document ID Modifications:
74AHC_AHCT240 v.2 20101126
•
Figure note [1] of Figure 4: changed.
74AHC_AHCT240 v.1 20100111
74AHC_AHCT240
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 26 November 2010
13 of 16
NXP Semiconductors
74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
15. Legal information
15.1 Data sheet status
Document status[1][2] Objective [short] data sheet Preliminary [short] data sheet Product [short] data sheet
[1] [2] [3]
Product status[3] Development Qualification Production
Definition This document contains data from the objective specification for product development. This document contains data from the preliminary specification. This document contains the product specification.
Please consult the most recently issued document before initiating or completing a design. The term ‘short data sheet’ is explained in section “Definitions”. The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nxp.com.
15.2 Definitions
Draft — The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet — A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. Product specification — The information and data provided in a Product data sheet shall define the specification of the product as agreed between NXP Semiconductors and its customer, unless NXP Semiconductors and customer have explicitly agreed otherwise in writing. In no event however, shall an agreement be valid in which the NXP Semiconductors product is deemed to offer functions and qualities beyond those described in the Product data sheet.
suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk. Applications — Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Customers are responsible for the design and operation of their applications and products using NXP Semiconductors products, and NXP Semiconductors accepts no liability for any assistance with applications or customer product design. It is customer’s sole responsibility to determine whether the NXP Semiconductors product is suitable and fit for the customer’s applications and products planned, as well as for the planned application and use of customer’s third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. NXP Semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer’s applications or products, or the application or use by customer’s third party customer(s). Customer is responsible for doing all necessary testing for the customer’s applications and products using NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customer(s). NXP does not accept any liability in this respect. Limiting values — Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the device. Limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the Recommended operating conditions section (if present) or the Characteristics sections of this document is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. Terms and conditions of commercial sale — NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms, unless otherwise agreed in a valid written individual agreement. In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. NXP Semiconductors hereby expressly objects to applying the customer’s general terms and conditions with regard to the purchase of NXP Semiconductors products by customer. No offer to sell or license — Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights.
15.3 Disclaimers
Limited warranty and liability — Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. In no event shall NXP Semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. Notwithstanding any damages that customer might incur for any reason whatsoever, NXP Semiconductors’ aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of NXP Semiconductors. Right to make changes — NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use in automotive applications — This NXP Semiconductors product has been qualified for use in automotive applications. The product is not designed, authorized or warranted to be
74AHC_AHCT240
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 26 November 2010
14 of 16
NXP Semiconductors
74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
Export control — This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from national authorities.
15.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners.
16. Contact information
For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com
74AHC_AHCT240
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 26 November 2010
15 of 16
NXP Semiconductors
74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
17. Contents
1 2 3 4 5 5.1 5.2 6 7 8 9 10 11 12 13 14 15 15.1 15.2 15.3 15.4 16 17 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features and benefits . . . . . . . . . . . . . . . . . . . . 1 Ordering information . . . . . . . . . . . . . . . . . . . . . 1 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2 Pinning information . . . . . . . . . . . . . . . . . . . . . . 2 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3 Functional description . . . . . . . . . . . . . . . . . . . 3 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 3 Recommended operating conditions. . . . . . . . 4 Static characteristics. . . . . . . . . . . . . . . . . . . . . 4 Dynamic characteristics . . . . . . . . . . . . . . . . . . 6 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 10 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 13 Legal information. . . . . . . . . . . . . . . . . . . . . . . 14 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 14 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Contact information. . . . . . . . . . . . . . . . . . . . . 15 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’.
© NXP B.V. 2010.
All rights reserved.
For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Date of release: 26 November 2010 Document identifier: 74AHC_AHCT240