74HCT244D,652 Philips Semiconductors, 74HCT244D,652 Datasheet - Page 10

• Manufacturer Part Number: 74HCT244D,652
• Description: LINE DRIVER; SOIC-20; LINE DRIVER LOGIC; +4.5V; -40; +125; 3.5; 6; 6
• Manufacturer: Philips Semiconductors

Specifications of 74HCT244D,652

• Capacitance, Input: 3.5 pF
• Circuit Type: High Speed, Low-Power Schottky, Silicon Gate
• Current, Supply: 160 μA
• Logic Function: Buffer/Driver
• Logic Type: CMOS/TTL
• Number Of Circuits: Octal
• Package Type: SO-20
• Special Features: Bus, Non-Inverting, Tri-State
• Temperature, Operating, Range: -40 to +125 °C
• Voltage, Supply: 5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

Philips Semiconductors
Table 10:
GND = 0 V; t
[1]
12. Waveforms
74HC_HCT244_3
Product data sheet
Symbol Parameter
T
t
t
t
t
t
t
t
t
T
t
t
t
t
t
t
t
t
PHL
PLH
PZH
PZL
PHZ
PLZ
THL
TLH
PHL
PLH
PZH
PZL
PHZ
PLZ
THL
TLH
amb
amb
,
,
,
,
,
,
,
,
C
P
f
f
C
V
N = number of inputs switching;
i
o
D
CC
= 40 C to +85 C
= 40 C to +125 C
PD
= input frequency in MHz;
L
(C
= output frequency in MHz;
= output load capacitance in pF;
= C
L
is used to determine the dynamic power dissipation (P
= supply voltage in V;
propagation delay nAn to nYn V
3-state output enable time
nOE to nYn
3-state output disable time
nOE to nYn
output transition time
propagation delay nAn to nYn V
3-state output enable time
nOE to nYn
3-state output disable time
nOE to nYn
output transition time
PD
V
Dynamic characteristics type 74HCT244
CC
r
= t
2
V
CC
f
= 6 ns; C
f
o
2
) = sum of outputs.
f
i
N + (C
Fig 6. Propagation delay input (1An, 2An) to output (1Yn, 2Yn) and transition time output
L
= 50 pF unless otherwise specified; for test circuit see
L
Measurement points are given in
V
(nYn)
V
OL
CC
2
and V
f
Conditions
V
V
V
V
V
V
o
) where:
CC
CC
CC
CC
CC
CC
CC
CC
OH
= 4.5 V; see
= 4.5 V; see
= 4.5 V; see
= 4.5 V; see
= 4.5 V; see
= 4.5 V; see
= 4.5 V; see
= 4.5 V; see
are typical voltage output drop that occur with the output load.
nYn output
nAn input
GND
V
…continued
V
OH
D
OL
V
in W):
I
Figure 6
Figure 7
Figure 7
Figure 6
Figure 6
Figure 7
Figure 7
Figure 6
90 %
Table
V
t
M
THL
11.
V
M
t
10 %
PHL
74HC244; 74HCT244
Min
-
-
-
-
-
-
-
-
Figure
V
V
Octal buffer/line driver; 3-state
M
M
t
TLH
8.
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
t
001aae013
Typ
-
-
-
-
-
-
-
-
PLH
Max
28
38
31
15
33
45
38
18
Unit
ns
ns
ns
ns
ns
ns
ns
ns
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