74ABT861 Просмотр технического описания (PDF) - Philips Electronics
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74ABT861 Datasheet PDF : 10 Pages
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Philips Semiconductors
10-bit bus transceiver (3-State)
Product specification
74ABT861
AC CHARACTERISTICS
GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω
SYMBOL
PARAMETER
WAVEFORM
tPLH
Propagation delay
tPHL
An to Bn or Bn to An
1
tPZH
tPZL
Output enable time
to High and Low level
2
tPHZ
Output disable time
tPLZ
from High and Low level
2
AC WAVEFORMS
VM = 1.5V, VIN = GND to 3.0V
INPUT
VM
tPLH
VM
tPHL
OUTPUT
VM
VM
SA00023
Waveform 1. Input to Output Propagation Delays
TEST CIRCUIT AND WAVEFORM
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
LIMITS
Tamb = +25oC
VCC = +5.0V
Min
Typ
Max
1.1
3.4
4.9
1.0
3.2
4.9
1.2
3.5
5.0
2.4
4.6
6.0
3.1
5.3
6.5
3.7
5.3
6.6
Tamb = -40 to
+85oC
VCC = +5.0V ±0.5V
Min
Max
1.1
5.2
1.0
5.2
1.2
5.9
2.4
6.9
3.1
7.5
3.7
7.1
UNIT
ns
ns
ns
OEXX
INPUT
VM
tPZL
VM
tPLZ
3.5V
OUTPUT
OUTPUT
VM
tPZH
VM
tPHZ
VOL + 0.3V
VOL
VOH
VOH – 0.3V
0V
SA00282
Waveform 2. 3-State Output Enable and Disable Times
1998 Jan 16
5
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