|
74HC244D-652 Datasheet, PDF (6/18 Pages) NXP Semiconductors – Octal buffer/line driver; 3-state Rev. 4 — 24 September 2012 | |||
|
◁ |
NXP Semiconductors
74HC244; 74HCT244
Octal buffer/line driver; 3-state
Table 6. Static characteristics â¦continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions
25 ï°C
ï40 ï°C to +85 ï°C ï40 ï°C to +125 ï°C Unit
Min Typ Max Min Max
Min
Max
74HCT244
VIH
HIGH-level VCC = 4.5 V to 5.5 V
input voltage
2.0 1.6 -
2.0
-
2.0
-V
VIL
LOW-level
VCC = 4.5 V to 5.5 V
input voltage
- 1.2 0.8
-
0.8
-
0.8 V
VOH
HIGH-level VI = VIH or VIL; VCC = 4.5 V
output voltage IO = ï20 ïA
4.4 4.5 -
4.4
-
4.4
-V
IO = ï6 mA
3.98 4.32 - 3.84
-
3.7
-V
VOL
LOW-level
VI = VIH or VIL; VCC = 4.5 V
output voltage IO = 20 ïA
- 0 0.1
-
0.1
-
0.1 V
IO = 6.0 mA
- 0.16 0.26 -
0.33
-
0.4 V
II
input leakage VI = VCC or GND;
current
VCC = 5.5 V
- - ï±0.1 -
ï±1.0
-
ï±1.0 ïA
IOZ
OFF-state
per input pin; VI = VIH or VIL;
output current VO = VCC or GND;
other inputs at VCC or GND;
VCC = 5.5 V; IO = 0 A
- - ï±0.5 -
ï±5.0
-
ï±10 ïA
ICC
supply current VI = VCC or GND;
VCC = 5.5 V; IO = 0 A
- - 8.0
-
80
-
160 ïA
ïICC additional
per input pin;
- 70 252
-
315
-
343 ïA
supply current VI = VCC ï 2.1 V;
other inputs at VCC or GND;
VCC = 4.5 V to 5.5 V;
IO = 0 A
CI
input
capacitance
- 3.5 -
-
-
-
- pF
10. Dynamic characteristics
Table 7. Dynamic characteristics
GND = 0 V; for load circuit see Figure 8.
Symbol Parameter
Conditions
74HC244
tpd
propagation delay nAn to nYn;
see Figure 6
VCC = 2.0 V
VCC = 4.5 V
VCC = 5.0 V; CL = 15 pF
VCC = 6.0 V
25 ï°C
ï40 ï°C to +125 ï°C Unit
Min Typ Max Max
Max
(85 ï°C) (125 ï°C)
[1]
-
30
110
145
165 ns
-
11
22
28
33 ns
-
9
-
-
- ns
-
9
19
24
28 ns
74HC_HCT244
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 â 24 September 2012
© NXP B.V. 2012. All rights reserved.
6 of 18
|
▷ |