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PDF 74ABT244 Data sheet ( Hoja de datos )
| Número de pieza | 74ABT244 | |
| Descripción | Octal buffer/line driver 3-State | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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INTEGRATED CIRCUITS
74ABT244
Octal buffer/line driver (3-State)
Product specification
Supersedes data of 1995 Sep 06
IC23 Data Handbook
1998 Jan 16
Philips
Semiconductors
1 page  
Philips Semiconductors
Octal buffer/line driver (3-State)
Product specification
74ABT244
AC CHARACTERISTICS
GND = 0V; tR = tF = 2.5ns; CL = 50pF, RL = 500Ω
SYMBOL
PARAMETER
WAVEFORM
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation delay
An to Yn
Output enable time
to High and Low level
Output disable time
from High and Low level
1
2
2
AC WAVEFORMS
VM = 1.5V, VIN = GND to 3.0V
3V
INPUT
1.5V
tPLH
1.5V
tPHL
0V
VOH
OUTPUT
1.5V
1.5V
VOL
SA00028
Waveform 1. Waveforms Showing the Input (An) to Output (Yn)
Propagation Delays
TEST CIRCUIT AND WAVEFORMS
From Output
Under Test
CL = 50 pF
500 Ω
500 Ω
7V
S1
Open
GND
Load Circuit
TEST
S1
tpd
tPLZ/tPZL
tPHZ/tPZH
open
7V
open
DEFINITIONS
CL = Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
SA00012
74ABT244
Tamb = +25°C
VCC = +5.0V
Min Typ Max
Tamb = –40°C to +85°C
VCC = +5.0V ±0.5V
Min Max
1.0 2.6 4.1
1.0 2.9 4.2
1.0
1.0
4.6
4.6
1.1 3.1 4.6
2.1 4.1 5.6
1.1
2.1
5.1
6.1
2.1 4.1 5.6
1.7 2.7 5.2
2.1
1.7
6.6
5.7
UNIT
ns
ns
ns
Output Control
(Low-level
enabling
1.5 V
1.5 V
3V
tPZL
Output
Waveform 1
S1 at 7 V
(see Note)
tPZH
Output
Waveform 2
S1 at Open
(see Note)
1.5 V
1.5 V
tPLZ
tPHZ
0V
3.5V
VOL + 0.3V
VOL
VOH
VOH – 0.3V
0V
Note:
Waveform 1 is for an output with internal conditions such that
the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that
the output is high except when disabled by the output control.
SA00029
Waveform 2. Waveforms Showing the 3-State Output Enable
and Disable Times
1998 Jan 16
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet 74ABT244.PDF ] | |
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