INTEGRATED CIRCUITS
GTL2020/GTL2021/GTL2022/GTL2023
32-bit GTL terminator with octal enables
Product specification
2000 Jan 14
Philips
Semiconductors
Philips Semiconductors
Product specification
32-bit GTL terminator with octal enables
GTL2020/GTL2021/
GTL2022/GTL2023
FEATURES
•
GTL2020 r
ON
is 56
Ω
typical connected to 1.5 V V
BIAS
•
GTL2021 r
ON
is 75
Ω
typical connected to 1.5 V V
BIAS
•
GTL2022 r
ON
is 100
Ω
typical connected to 1.5 V V
BIAS
•
GTL2023 r
ON
is 150
Ω
typical connected to 1.5 V V
BIAS
•
Low power: 50
µW
•
Switching speed: 5 ns max.
•
Channel on capacitance: 3 pF
•
V
CC
operating range: +5 V
±10%
•
Latch-up protection passes Class II JESD78
•
ESD protection exceeds 2000 V HBM per JESD22-A114,
200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101
PIN CONFIGURATION
VBIAS0A
EN0
A0
A1
A2
A3
GND
VBIAS1A
EN1
1
2
3
4
5
6
7
8
9
56 V
CC
55 VBIAS0B
54 A4
53 A5
52 A6
51 A7
50 NC
49 V
CC
48 VBIAS1B
47 A12
46 A13
45 A14
44 A15
43 NC
42 V
CC
41 VBIAS2B
40 A20
39 A21
38 A22
37 A23
36 NC
35 V
CC
34 VBIAS3B
33 A28
32 A29
31 A30
30 A31
29 NC
A8 10
A9 11
A10 12
A11 13
GND 14
VBIAS2A 15
•
Available in TSSOP56 package
DESCRIPTION
The GTL202x series are 32-bit bus switches with GTL termination
and octal output enables. The GTL202x is intended to provide GTL
bus termination in multi-processor environments.
The enable pins allow the system control to disconnect the bus
termination. When the bus switch is enabled, a 56, 75, 100 or 150
Ω
series resistance is connected to the GTL Vbias.
EN2 16
A16 17
A17 18
A18 19
A19 20
GND 21
VBIAS3A 22
EN3 23
A24 24
A25 25
A26 26
A27 27
GND 28
SW00473
QUICK REFERENCE DATA
SYMBOL
t
PE/PD
C
ON
C
OFF
PARAMETER
Bus enable/disable
Input capacitance switch on
Input capacitance switch off
CONDITIONS
T
amb
= 25°C; GND = 0V
C
L
= 20 pF, R
L
= 500
Ω
V
IN
= 0 V
V
IN
= 0 V
TYPICAL
2.5
3
6
UNIT
nS
pF
pF
ORDERING INFORMATION
PACKAGES
56-Pin Plastic TSSOP Type II
56-Pin Plastic TSSOP Type II
56-Pin Plastic TSSOP Type II
56-Pin Plastic TSSOP Type II
TEMPERATURE RANGE
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
ORDER CODE
GTL2020 DGG
GTL2021 DGG
GTL2022 DGG
GTL2023 DGG
DWG NUMBER
SOT364-1
SOT364-1
SOT364-1
SOT364-1
2000 Jan 14
2
Philips Semiconductors
Product specification
32-bit GTL terminator with octal enables
GTL2020/GTL2021/
GTL2022/GTL2023
LOGIC DIAGRAM
A0
R
VBIAS0A
FUNCTION TABLE
ENn
L
H
NOTES:
When enabled:
Ports Ax connect to V
BIASnA
Ports Ay connect to V
BIASnB
Where:
X = 0–3, 8–11, 16–19, 24–27
Y = 4–7, 12–15, 20–23, 28–31
SWITCH
ON
OFF
A7
EN0
A8
R
VBIAS0B
R
VBIAS1A
A15
EN1
A16
R
VBIAS1B
R
VBIAS2A
A23
EN2
A24
R
VBIAS2B
R
VBIAS3A
A31
EN3
R
VBIAS3B
SW00474
Figure 1.
ABSOLUTE MAXIMUM RATINGS
1
Above which the useful life may be impaired. For user guidelines, not tested.
SYMBOL
V
CC
V
I
T
stg
T
amb
DC input voltage
Storage temperature range
Ambient temperature range with power applied
PARAMETER
Supply voltage to ground potentials
CONDITIONS
Inputs and V
CC
only
RATING
–0.5 to +7.0
–0.5 to +7.0
–65 to +150
–40 to +85
UNIT
V
V
°C
°C
NOTE:
1. Stresses greater than those listed under Absolute Maximum Ratings may cause permanent damage to the device. this is a stress rating only
and functional operation of the device at these or any conditions above those indicated in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.
RECOMMENDED OPERATING CONDITIONS
SYMBOL
V
IH
V
IL
V
CC
V
IH
V
IL
V
BIAS
T
amb
PARAMETER
TTL input HIGH voltage
TTL input LOW voltage
DC supply voltage
High-level input voltage (control pin)
Low-level input voltage (control pin)
DC supply voltage
Operating free-air temperature range
TEST CONDITIONS
Control Inputs
Control Inputs
LIMITS
MIN.
2.0
—
4.5
2.0
—
1.35
–40
TYP.
1
—
—
—
—
—
—
—
MAX.
—
0.8
5.5
—
0.8
1.65
+85
UNIT
V
V
V
V
V
V
°C
2000 Jan 14
3
Philips Semiconductors
Product specification
32-bit GTL terminator with octal enables
GTL2020/GTL2021/
GTL2022/GTL2023
DC ELECTRICAL CHARACTERISTICS
V
CC
= 5 V
±10%;
T
amb
= –40°C to +85°C
SYMBOL
I
I
V
IK
PARAMETER
Control inputs
Switch inputs
Input clamp voltage
GTL2020 switch on resistance
r
O
ON
GTL2021 switch on resistance
GTL2022 switch on resistance
GTL2023 switch on resistance
C
IN
C
ON
C
OFF
I
CC
∆I
CC
Input capacitance ENx pins
Input capacitance, switch on
Input capacitance, switch off
Power supply quiescent
Additional supply current per input pin
2
TEST CONDITIONS
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
LIMITS
MIN.
—
—
—
42
64
80
125
—
—
—
—
—
TYP.
1
0.1
0.01
–0.85
56
75
100
150
5.6
3
6
—
0.1
MAX.
±1
±1
–1.2
70
92
120
175
—
—
—
10
0.5
UNIT
µA
µA
V
Ω
Ω
Ω
Ω
pF
pF
pF
µA
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
t
PE
t
PD
t
PE
t
PD
t
PE
t
PD
t
PE
t
PD
Bus enable
Bus disable
Bus enable
Bus disable
Bus enable
Bus disable
Bus enable
Bus disable
PARAMETER
GTL2020
GTL2021
GTL2022
GTL2023
WAVEFORM
1
1
1
1
1
1
1
1
TEST CONDITIONS
C
L
= 20 pF, R
L
= 500
Ω
C
L
= 20 pF, R
L
= 500
Ω
C
L
= 20 pF, R
L
= 500
Ω
C
L
= 20 pF, R
L
= 500
Ω
C
L
= 20 pF, R
L
= 500
Ω
C
L
= 20 pF, R
L
= 500
Ω
C
L
= 20 pF, R
L
= 500
Ω
C
L
= 20 pF, R
L
= 500
Ω
LIMITS
MIN.
1
1
1
1
1
1
1
1
TYP.
–
–
–
–
–
–
–
–
MAX.
3
3
3
3
3
4
5
5
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
AC WAVEFORMS
3.0 V
Input
1.5 V
1.5 V
0V
t
PE
t
PD
V
OH
V
OH–0.3 V
Ax
V
OL+0.3 V
V
OL
VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES
TEST CIRCUIT
V
CC
V
I
PULSE
GENERATOR
R
T
D.U.T.
V
O
20 pF
C
L
R
L
= 500Ω
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.
SW00566
Waveform 1.
SW00565
Figure 2.
2000 Jan 14
4
Philips Semiconductors
Product specification
32-bit GTL terminator with octal enables
GTL2020/GTL2021/
GTL2022/GTL2023
TSSOP56: plastic thin shrink small outline package; 56 leads; body width 6.1mm
SOT364-1
2000 Jan 14
5
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