
Philips Semiconductors
Product specification
GTL2020/GTL2021/
GTL2022/GTL2023
32-bit GTL terminator with octal enables
2
2000 May 16
853-2186 23675
FEATURES
GTL2020 r
ON is 56 typical connected to 1.5 V VBIAS
GTL2021 r
ON is 75 typical connected to 1.5 V VBIAS
GTL2022 r
ON is 100 typical connected to 1.5 V VBIAS
GTL2023 r
ON is 150 typical connected to 1.5 V VBIAS
Low power: 50 W
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
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
series resistance is connected to the GTL Vbias.
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
45
46
47
48
49
50
51
52
53
54
55
56
VBIAS0A
A0
A1
A2
A3
GND
VBIAS1A
EN1
A8
A9
VCC
VBIAS0B
A4
A5
A6
A7
NC
VBIAS1B
VCC
A12
A13
A14
A10
13
14
15
16
17
18
39
40
41
42
43
44
A11
GND
VBIAS2A
EN2
A16
A15
VCC
NC
VBIAS2B
A20
A17
19
38
A21
A18
20
21
22
23
24
25
32
33
34
35
36
37
A19
GND
VBIAS3A
EN3
A24
A22
VCC
A23
VBIAS3B
A28
A29
A25
26
31 A30
A26
27
30 A31
A27
29
GND
NC
EN0
NC
SW00473
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
Tamb = 25°C; GND = 0V
TYPICAL
UNIT
tPE/PD
Bus enable/disable
CL = 20 pF, RL = 500
2.5
nS
CON
Input capacitance switch on
VIN = 0 V
3
pF
COFF
Input capacitance switch off
VIN = 0 V
6
pF
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
ORDER CODE
DWG NUMBER
56-Pin Plastic TSSOP Type II
–40
°C to +85°C
GTL2020 DGG
SOT364-1
56-Pin Plastic TSSOP Type II
–40
°C to +85°C
GTL2021 DGG
SOT364-1
56-Pin Plastic TSSOP Type II
–40
°C to +85°C
GTL2022 DGG
SOT364-1
56-Pin Plastic TSSOP Type II
–40
°C to +85°C
GTL2023 DGG
SOT364-1