Philips Semiconductors
Product specification
GTL2020/GTL2021/
GTL2022/GTL2023
32-bit GTL terminator with octal enables
2000 May 16
4
DC ELECTRICAL CHARACTERISTICS
V
CC
= 5 V
±
5%; T
amb
= 0
°
C to +70
°
C
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
TYP.
1
0.1
UNIT
MIN.
—
MAX.
±
1
±
1
–1.2
I
I
Control inputs
V
CC
= 5.5 V, V
I
= V
CC
or GND
V
CC
= 5.5 V, V
I
= 1.65 V, V
BIAS
= 0 V
V
CC
= 4.5 V, I
IK
= –18 mA
V
CC
= MIN, V
IN
= 0 V, V
BIAS
= 1.5 V
V
CC
= MIN, V
IN
= 0 V, V
BIAS
= 1.5 V
V
CC
= MIN, V
IN
= 0 V, V
BIAS
= 1.5 V
V
CC
= MIN, V
IN
= 0 V, V
BIAS
= 1.5 V
V
IN
= 0 V
V
IN
= 0 V
V
IN
= 0 V
V
BIAS
= 1.5 OE = 0 V or V
CC
V
CC
= 4.5 V to 5.5 V; one input at V
CC
–3.0 V,
other inputs at V
CC
or GND
μ
A
μ
A
V
pF
Switch inputs
—
0.01
V
IK
Input clamp voltage
—
–0.85
GTL2020 switch on resistance
48
56
64
r
ON
GTL2021 switch on resistance
64
75
86
GTL2022 switch on resistance
85
100
115
GTL2023 switch on resistance
128
150
173
C
IN
C
ON
C
OFF
I
CC
Input capacitance ENx pins
—
5.6
—
Input capacitance, switch on
—
3
—
pF
Input capacitance, switch off
—
6
—
pF
μ
A
Power supply quiescent
—
—
10
I
CC
Additional supply current per input pin
2
—
0.1
0.5
mA
NOTES:
1. Typical values are shown at V
CC
= 5.0 V, +25
°
C ambient and maximum loading.
2. This is the increase in supply current for each LVTTL input at the specified voltage level other than V
CC
or GND.
AC ELECTRICAL CHARACTERISTICS
V
CC
= 5 V
±
10%; T
amb
= –40
°
C to +85
°
C; t
r
= t
f
= 2.5 nS
SYMBOL
PARAMETER
WAVEFORM
TEST CONDITIONS
LIMITS
UNIT
MIN.
1
TYP.
–
MAX.
3
t
PE
t
PD
t
PE
t
PD
t
PE
t
PD
t
PE
t
PD
Bus enable
GTL2020
1
C
L
= 20 pF, R
L
= 500
C
L
= 20 pF, R
L
= 500
C
L
= 20 pF, R
L
= 500
C
L
= 20 pF, R
L
= 500
C
L
= 20 pF, R
L
= 500
C
L
= 20 pF, R
L
= 500
C
L
= 20 pF, R
L
= 500
C
L
= 20 pF, R
L
= 500
ns
Bus disable
1
1
–
3
ns
Bus enable
GTL2021
1
1
–
3
ns
Bus disable
1
1
–
3
ns
Bus enable
GTL2022
1
1
–
3
ns
Bus disable
1
1
–
4
ns
Bus enable
GTL2023
1
1
–
5
ns
Bus disable
1
1
–
5
ns
AC WAVEFORMS
Input
1.5 V
Ax
t
PE
t
PD
1.5 V
V
OL+0.3 V
V
OH–0.3 V
3.0 V
0 V
V
OH
V
OL
SW00566
VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES
Waveform 1.
TEST CIRCUIT
PULSE
GENERATOR
R
T
V
I
D.U.T.
V
O
C
L
V
CC
Test Circuit for switching times
DEFINITIONS
R
L
= Load resistor
C
L
= Load capacitance includes jig and probe capacitance
R
T
= Termination resistance should be equal to Z
OUT
of pulse generators.
20 pF
R
L
= 500
SW00565
Figure 2.