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GTL2018 Datasheet, PDF (5/14 Pages) NXP Semiconductors – 8-bit LVTTL to GTL transceiver
NXP Semiconductors
GTL2018
8-bit LVTTL to GTL transceiver
9. Recommended operating conditions
Table 6. Recommended operating conditions[1]
Symbol Parameter
Conditions
Min
Typ Max
Unit
VCC
supply voltage
VTT
termination voltage[2] GTL−
GTL
3.0
-
3.6
V
0.85
0.9 0.95
V
1.14
1.2 1.26
V
GTL+
1.35
1.5 1.65
V
Vref
reference voltage
overall
GTL−
0.5
2⁄3VTT 0.5VCC
V
0.5
0.6 0.63
V
GTL
0.76
0.8 0.84
V
GTL+
0.87
1.0 1.10
V
VI
input voltage
B port
0
except B port [3] 0
VTT 3.6
V
3.3 5.5
V
VIH
HIGH-level input
B port
Vref + 0.050 -
-
V
voltage
except B port
2
-
-
V
VIL
LOW-level input
B port
-
voltage
except B port
-
-
Vref − 0.050 V
-
0.8
V
IOH
HIGH-level output
A port
current
-
-
−16
mA
IOL
LOW-level output
B port
current
A port
-
-
40
mA
-
-
16
mA
Tamb
ambient temperature operating in
−40
-
85
°C
free air
[1] Unused inputs must be held HIGH or LOW to prevent them from floating.
[2] VTT maximum of 3.6 V with resistor sized to so IOL maximum is not exceeded.
[3] A0 to A7 VI(max) is 3.6 V if configured as outputs (DIR = LOW).
GTL2018_1
Product data sheet
Rev. 01 — 15 February 2007
© NXP B.V. 2007. All rights reserved.
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