Nexperia
HEF40244B
Octal buffers with 3-state outputs
8 Recommended operating conditions
Table 5. Operating conditions
Symbol Parameter Conditions Min Max Unit
V
DD
supply voltage referenced to V
SS
(usually ground) 3 15 V
V
I
input voltage 0 V
DD
V
T
amb
ambient temperature in free air -40 +85 °C
V
DD
= 5 V - 3.75 μs/V
V
DD
= 10 V - 0.5 μs/V
Δt/ΔV input transition rise and fall rate
V
DD
= 15 V - 0.08 μs/V
9 Static characteristics
Table 6. Static characteristics
V
SS
= 0 V; V
I
= V
SS
or V
DD
unless otherwise specified.
Conditions T
amb
= -40 °C T
amb
= 25 °C T
amb
= 85 °CSymbol Parameter
V
DD
Min Max Min Typ Max Min Max
Unit
|I
O
| < 1 μA
V
O
= 0.5 V or 4.5 V 5 V 3.5 - 3.5 - - 3.5 - V
V
O
= 1.0 V or 9.0 V 10 V 7.0 - 7.0 - - 7.0 - V
V
IH
HIGH-level
input voltage
V
O
= 1.5 V or 13.5 V 15 V 11.0 - 11.0 - - 11.0 - V
|I
O
| < 1 μA
V
O
= 0.5 V or 4.5 V 5 V - 1.5 - - 1.5 - 1.5 V
V
O
= 1.0 V or 9.0 V 10 V - 3.0 - - 3.0 - 3.0 V
V
IL
LOW-level
input voltage
V
O
= 1.5 V or 13.5 V 15 V - 4.0 - - 4.0 - 4.0 V
5 V 4.95 - 4.95 - - 4.95 - V
10 V 9.95 - 9.95 - - 9.95 - V
V
OH
HIGH-level
output voltage
|I
O
| < 1 μA
15 V 14.95 - 14.95 - - 14.95 - V
5 V - 0.05 - - 0.05 - 0.05 V
10 V - 0.05 - - 0.05 - 0.05 V
V
OL
LOW-level
output voltage
|I
O
| < 1 μA
15 V - 0.05 - - 0.05 - 0.05 V
see Figure 5
and Figure 6
V
OH
= 3.6 V 5 V −9.3 - −10 −24 - −10.7 - mA
V
OH
= 4.6 V 5 V −0.75 - −0.6 −1.2 - −0.45 - mA
V
OH
= 8.4 V 10 V −14.4 - −15 −46 - −15 - mA
V
OH
= 9.5 V 10 V −1.85 - −1.5 −3.0 - −1.1 - mA
V
OH
= 13.2 V 15 V −19.5 - −20 −62 - −19.8 - mA
I
OH
HIGH-level
output current
V
OH
= 13.5 V 15 V −14.5 - −15 −50 - −15.5 - mA
HEF40244B All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2018. All rights reserved.
Product data sheet Rev. 4 — 29 June 2018
4 / 14
Nexperia
HEF40244B
Octal buffers with 3-state outputs
Conditions T
amb
= -40 °C T
amb
= 25 °C T
amb
= 85 °CSymbol Parameter
V
DD
Min Max Min Typ Max Min Max
Unit
V
OL
= 0.4 V 5 V 2.9 - 2.3 5.4 - 1.75 - mA
V
OL
= 0.5 V 10 V 9.5 - 7.6 17 - 5.5 - mA
I
OL
LOW-level
output current
V
OL
= 1.5 V 15 V 30.0 - 25 45 - 19.0 - mA
I
I
input leakage
current
[1]
15 V - ±0.3 - - ±0.3 - ±1.0 μA
V
O
= V
DD
15 V - 1.6 - - 1.6 - 12.0 μAI
OZ
OFF-state
output current
V
O
= V
SS
15 V - −1.6 - - −1.6 - −12.0 μA
5 V - 4.0 - - 4.0 - 30 μA
10 V - 8.0 - - 8.0 - 60 μA
I
DD
supply current I
O
= 0 A
15 V - 16.0 - - 16.0 - 120 μA
5 V - - - 220 - - - mV
10 V - - - 250 - - - mV
V
H
hysteresis
voltage
15 V - - - 320 - - - mV
C
I
input
capacitance
- - - 7.5 - - - pF
[1] Unused inputs must be connected to V
DD
, V
SS
or another input.
10 Dynamic characteristics
Table 7. Dynamic characteristics
V
SS
= 0 V; T
amb
= 25 °C; unless otherwise specified; for waveform and test circuit, see Figure 10.
Symbol Parameter Conditions Extrapolation formula Min Typ Max Unit
IAn to OAn; IBn to OBn;
see Figure 7.
[1]
V
DD
= 5 V 83 ns + (0.24 ns/pF)C
L
- 95 190 ns
V
DD
= 10 V 35 ns + (0.10 ns/pF)C
L
- 40 80 ns
t
PHL
HIGH to LOW
propagation delay
V
DD
= 15 V 26 ns + (0.07 ns/pF)C
L
- 30 60 ns
IAn to OAn; IBn to OBn;
see Figure 7.
[1]
V
DD
= 5 V 82 ns + (0.06 ns/pF)C
L
- 85 170 ns
V
DD
= 10 V 38 ns + (0.03 ns/pF)C
L
- 40 80 ns
t
PLH
LOW to HIGH
propagation delay
V
DD
= 15 V 29 ns + (0.02 ns/pF)C
L
- 30 60 ns
HEF40244B All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2018. All rights reserved.
Product data sheet Rev. 4 — 29 June 2018
5 / 14
Nexperia
HEF40244B
Octal buffers with 3-state outputs
Symbol Parameter Conditions Extrapolation formula Min Typ Max Unit
EOA to OAn; EOB to OBn;
see Figure 9.
V
DD
= 5 V - 80 160 ns
V
DD
= 10 V - 35 70 ns
t
PZH
OFF-state to HIGH
propagation delay
V
DD
= 15 V - 30 60 ns
EOA to OAn; EOB to OBn;
see Figure 9.
V
DD
= 5 V - 90 180 ns
V
DD
= 10 V - 40 80 ns
t
PZL
OFF-state to LOW
propagation delay
V
DD
= 15 V - 30 60 ns
EOA to OAn; EOB to OBn;
see Figure 9.
V
DD
= 5 V - 70 140 ns
V
DD
= 10 V - 35 70 ns
t
PHZ
HIGH to OFF-state
propagation delay
V
DD
= 15 V - 30 60 ns
EOA to OAn; EOB to OBn;
see Figure 9.
V
DD
= 5 V - 75 150 ns
V
DD
= 10 V - 40 80 ns
t
PLZ
LOW to OFF-state
propagation delay
V
DD
= 15 V - 30 60 ns
OAn; OBn; see Figure 7
and Figure 8.
V
DD
= 5 V - 40 80 ns
V
DD
= 10 V - 20 40 ns
t
THL
HIGH to LOW output
transition time
V
DD
= 15 V - 15 30 ns
OAn; OBn; see Figure 7
and Figure 8.
V
DD
= 5 V - 30 60 ns
V
DD
= 10 V - 20 40 ns
t
TLH
LOW to HIGH output
transition time
V
DD
= 15 V - 15 30 ns
[1] The typical values of the propagation delay are calculated from the extrapolation formulas shown (C
L
in pF).
Table 8. Dynamic power dissipation
Symbol Parameter V
DD
Typical formula where:
5 V P
D
= 4250 × f
i
+ Σ(f
o
× C
L
) × V
DD
2
(μW)
10 V P
D
= 17000 × f
i
+ Σ(f
o
× C
L
) × V
DD
2
(μW)
P
D
dynamic power
dissipation
15 V P
D
= 46000 × f
i
+ Σ(f
o
× C
L
) × V
DD
2
(μW)
f
i
= input frequency in MHz;
f
o
= output frequency in MHz;
C
L
= output load capacitance in pF;
Σ(f
o
× C
L
) = sum of the outputs;
V
DD
= supply voltage in V.
HEF40244B All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2018. All rights reserved.
Product data sheet Rev. 4 — 29 June 2018
6 / 14

HEF40244BT,652

Mfr. #:
Manufacturer:
Nexperia
Description:
Buffers & Line Drivers OCTAL BUFF/DRVR 3ST
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet