Page 1
INTEGRATED CIRCUITS
GTL2000
22-bit GTL processor voltage clamp
Product specification
Supersedes data of 1999 Apr 05
2000 Jan 25
Page 2
Philips Semiconductors Product specification
GTL200022-bit GTL processor voltage clamp
FEA TURES
•Direct interface with TTL level
•6.5Ω ON-state connection between port S
DESCRIPTION
The GTL2000 provides twenty-two bits of high-speed voltage
clamps. The low ON-state resistance of the clamp allows
connections to be made with minimal propagation delay.
The device is organized as one 22-bit voltage clamp. When S or D
is low the clamp is in the ON–state and a low resistance connection
exists between the S and D ports. When S port and D port are high,
the clamp is in the OFF-state and a very high impedance exists
between the S and D ports. When the D port is high, the voltage on
the S port is clamped to the applied reference voltage on the GREF
port.
FUNCTION TABLE
G
REF
D
REF
H H 0 V off X X
H H V
H H V
L L V
L L 0 – V
H = High voltage level
L = Low voltage level
X = Don’t Care
NOTES:
1. The output is not pulled up or pulled down.
2. The output is pulled up to V
3. The driven output can be S
follows the input low.
4. G
must be at least 1.5 V higher than S
REF
operation.
4
S
REF
Switch
TT
TT
TT
on H V
nearly off V
on L L
off X X
TT
through an external resistor.
CC
or Dn; the output of drivn input
n
and D
n
n
Driven
Input
TT
for proper switch
REF
Output of
Driven Input
1
TT
2
H
3
PIN CONFIGURATION
GND
1
S
2
REF
S
3
1
S
4
2
5
S
3
6
S
4
7
S
5
S
8
6
S
9
7
S
10
8
S
11
9
12
S
10
13
S
11
S
14
12
S
15
13
S
16
14
S
17
15
S
18
16
S
17
19
S
20
18
S
21
19
S
22
20
S
23
21
S
24
22
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
SA00521
G
REF
D
REF
D
1
D
2
D
3
D
4
D
5
D
6
D
7
D
8
D
9
D
10
D
11
D
12
D
13
D
14
D
15
D
16
D
17
D
18
D
19
D
20
D
21
D
22
QUICK REFERENCE DA TA
SYMBOL PARAMETER
Propagation delay
Sn to Dn
Channel capacitance (OFF-state) VS = 1.5 V 7.5 pF
C
t
PLH
OFF
V
= 3.3 V; V
DD1
V
= 1.5 V; unloaded
REF
CONDITIONS
T
= 25°C; GND = 0V
amb
= 2.5 V;
DD2
TYPICAL UNIT
1.5 ns
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE ORDER CODE DWG NUMBER
48-Pin Plastic SSOP Type II 0°C to +85°C GTL2000 DL SOT370–1
2000 Jan 25 853-2154 23030
2
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Philips Semiconductors Product specification
SYMBOL
PARAMETER
CONDITIONS
UNIT
22-bit GTL processor voltage clamp
PIN DESCRIPTION
PIN
NUMBER
SYMBOL NAME AND FUNCTION
CLAMP SCHEMATIC
D
REF
G
REF
D
1
GTL2000
D
22
1 GND Ground (0V)
2 S
REF
3 – 24 S
25 – 46 D
47 D
48 G
REF
REF
ABSOLUTE MAXIMUM RA TINGS
SYMBOL
V
S_REF
V
D_REF
V
G_REF
V
V
I
REFK
I
I
I
MAX
T
SK
DK
stg
DC source reference voltage –0.5 to +7.0 V
DC drain reference voltage –0.5 to +7.0 V
DC gate reference voltage –0.5 to +7.0 V
DC voltage Port S
Sn
DC voltage Port D
Dn
DC reference diode current VI < 0 –50 mA
DC diode current Port S
DC diode current Port D
DC clamp current per channel Channel in ON-state ±35 mA
Storage temperature range –65 to +150 °C
Source of reference transistor
Port S1 to Port S
n
Port D1 to Port D
n
Drain of reference transistor
Gate of reference transistor
PARAMETER CONDITIONS RATING UNIT
n
n
n
n
22
22
1, 2, 3
S
REF
S
1
S
22
SA00522
–0.5 to +7.0 V
–0.5 to +7.0 V
VI < 0 –50 mA
VI < 0 –50 mA
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability .
2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create ju nction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.
3. The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
RECOMMENDED OPERATING CONDITIONS
V
S_REF
V
D_REF
V
G_REF
V
V
V
V
I
I
T
amb
2000 Jan 25
DC source reference voltage 1.0 4.4 V
DC drain reference voltage V
DC gate reference voltage V
DC voltage Port Sn (OFF-state) V
Sn
DC voltage Port Sn (ON-state) 0 0.2 V
Sn
DC voltage Port Dn (OFF-state) V
Dn
DC voltage Port Dn (ON-state) 0 0.4 V
Dn
Switch input leakage current
S
(OFF-state) for Sn and Dn I/O
G
I
input leakage current VG = 5 V 2.5 µA
REF
Operating ambient temperature range In free air 0 +85 °C
LIMITS
Min Max
+ 0.6 5 V
S_REF
+ 0.6 5 V
S_REF
S_REF
S_REF
5 V
5 V
VS , VD = 5 V 15 µA
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Philips Semiconductors Product specification
22-bit GTL processor voltage clamp
DC CHARACTERISTICS for V
Over recommended operating conditions. Voltage are referenced to GND (ground = 0 V). Refer to the Test Circuit diagram.
SYMBOL PARAMETER TEST CONDITIONS T
V
OL
LOW level output voltage VS = 0.175 V; I
NOTE:
1. All typical values are measured at V
AC CHARACTERISTICS for V
GND = 0V; tr = tf ≤ 3.0 ns. Refer to the Test Circuit diagram.
SYMBOL PARAMETER WAVEFORM
Propagation delay
2
t
PLH
NOTES:
1. All typical values are measured at V
2. Propagation delay guaranteed by characterization.
3. C
ON,MAX
Sn to Dn; Dn to Sn
of 30 pF and a C
OFF,MAX
= 3.0 to 3.6 V; V
DD1
= 3.3 V, V
DD1
= 3.0 to 3.6 V; V
DD1
= 3.3 V, V
DD1
DD2
DD2
DD2
= 2.5 V, V
= 2.5 V, V
REF
DD2
REF
of 15 pF is guaranteed by design.
= 2.36 to 2.64 V; V
= 1.365 to 1.635 V range
REF
LIMITS
= 0°C to +85°C UNIT
amb
MIN TYP
= 15.2 mA 260 350 mV
CLAMP
= 1.5 V and T
= 2.36 to 2.64 V; V
amb
= 25°C
= 1.365 to 1.635 V range
REF
1
LIMITS
T
= 0°C to +85°C
amb
MIN TYP
1
0.5 1.5 5.5 ns
= 1.5 V and T
amb
= 25°C.
GTL2000
MAX
UNIT
MAX
AC WAVEFORMS
V
I
INPUT
GND
V
DD2
OUTPUT
HIGH-to-LOW
LOW-to-HIGH
HIGH-to-LOW
LOW-to-HIGH
V
V
DD2
OUTPUT
V
OL
OL
Waveform 1. The Input (Sn) to Output (Dn) Propagation Delays
V
M
t
PHL
00
V
M
t
PHL
t
PHL
1
V
M
V
M
t
PLH
V
M
t
PLH
t
PLH
1
V
M
SA00524
TEST CIRCUIT
V
DD1
Ω 150Ω 150Ω 150Ω
200K
D
G
REF
REF
S
REF
V
REF
PULSE
GENERATOR
V
DD2
D
1
S
1
V
DD2
D
22
S
22
Waveform 2. Load circuit
DUT
V
DD2
SA00523
2000 Jan 25
4
Page 5
Philips Semiconductors Product specification
GTL200022-bit GTL processor voltage clamp
SSOP48: plastic shrink small outline package; 48 leads; body width 7.5 mm SOT370-1
2000 Jan 25
5
Page 6
Philips Semiconductors Product specification
GTL200022-bit GTL processor voltage clamp
Data sheet status
Data sheet
status
Objective
specification
Preliminary
specification
Product
specification
Product
status
Development
Qualification
Production
Definition
This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.
This data sheet contains preliminary data, and supplementary data will be published at a later date.
Philips Semiconductors reserves the right to make changes at any time without notice in order to
improve design and supply the best possible product.
This data sheet contains final specifications. Philips Semiconductors reserves the right to make
changes at any time without notice in order to improve design and supply the best possible product.
[1]
[1] Please consult the most recently issued datasheet before initiating or completing a design.
Definitions
Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.
Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.
Disclaimers
Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can
reasonably be expected to result in personal injury . Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.
Right to make changes — Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard
cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Copyright Philips Electronics North America Corporation 2000
All rights reserved. Printed in U.S.A.
Date of release: 01-00
Document order number: 9397–750-06818
2000 Jan 25
6
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