74HC240N NXP Semiconductors, 74HC240N Datasheet - Page 10

• Manufacturer Part Number: 74HC240N
• Description: Buffer/Line Driver 8-CH Inverting 3-ST CMOS 20-Pin PDIP Bulk
• Manufacturer: NXP Semiconductors

Specifications of 74HC240N

• Package: 20PDIP
• Logic Family: HC
• Logic Function: Buffer/Line Driver
• Number Of Outputs Per Chip: 8
• Output Type: 3-State
• Input Signal Type: Single-Ended
• Maximum Propagation Delay Time @ Maximum Cl: 100@2V|20@4.5V|17@6V ns
• Polarity: Inverting
• Logic Device Type: Buffer/Line Driver, Inverting
• Supply Voltage Range: 2V To 6V
• Logic Case Style: DIP
• No. Of Pins: 20
• Operating Temperature Range: -40°C To +125°C
• No. Of Circuits: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
Table 9.
74HC_HCT240_3
Product data sheet
Type
74HC240
74HCT240
Fig 8. Load circuitry for measuring switching times
Test data is given in
Definitions test circuit:
R
C
R
S1 = Test selection switch.
T
L
L
Test data
= Load capacitance including jig and probe capacitance.
= Load resistance.
= Termination resistance should be equal to output impedance Z
Input
V
V
3 V
I
CC
Table
GENERATOR
9.
t
6 ns
6 ns
PULSE
r
negative
, t
positive
f
pulse
pulse
0 V
0 V
V
V
I
I
90 %
10 %
Load
C
15 pF, 50 pF
15 pF, 50 pF
V I
L
Rev. 03 — 2 August 2007
t
t
r
f
V
V
M
M
R T
10 %
90 %
DUT
V
CC
t
t
R
1 k
1 k
W
W
L
V O
o
of the pulse generator.
V
V
74HC240; 74HCT240
Octal buffer/line driver; 3-state; inverting
M
M
C L
S1 position
t
open
open
PHL
t
t
r
f
R L
, t
PLH
S1
001aad983
V
CC
open
t
GND
GND
PZH
, t
PHZ
© NXP B.V. 2007. All rights reserved.
t
V
V
PZL
CC
CC
, t
PLZ
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