Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Thin Film on Silicon 2DTA High Performance Memory Bus Terminator
D
TA
24
Q
00
5
04
12
Features
Lead free versions available
RoHS compliant (lead free version)*
18 termination channels
Incorporates 36 bi-directional Schottky-
based diodes
Small form factor replaces 18 SOT23
packages
Low forward voltage (2 options available)
Very fast recovery time
General Information
The Model 2DTA Series High Performance Memory Bus
Terminator is well-suited for high speed bus termination
applications where variable bus loading and very low
terminator power dissipation are required. This very efficient
high speed terminator array is highly integrated and is very
effective for use in space constrained applications such as PC
notebooks and motherboards, engineering workstations and
portable battery powered devices. Two performance options
are available. The higher grade 2DTA-5 with a maximum
forward voltage of 0.75 V is suited for ultra-fast and dense
memory termination configurations. The 2DTA-10, with a
maximum specified forward voltage of 0.85 V is primarily
targeted to general purpose applications where board space is
critical.
Package Schematic
18
7
17
8
16
9
15
10
14
11
13
12
23
24
2
1
22
3
21
4
20
5
19
6
GND
GND
VDD
VDD
GND
VDD
Electrical Characteristics
Symbol
Minimum
Nominal
Maximum
Unit
VDD
-0.3
+7
V
Channel Clamp Current (continuous)
IC
50
mA
2DTA-5 Forward Voltage:
@If = 16 mA
Vf
0.4
0.65
V
@If = 50 mA
Vf
0.5
0.75
V
2DTA-10 Forward Voltage:
@If = 16 mA
Vf
0.5
0.75
V
@If = 50 mA
Vf
0.65
0.85
V
Leakage Current @ Max. VDD
0.1
5
A
Diode Capacitance
5
pF
Diode Ohmic Resistance
5
Charge Carrier Lifetime
tl
100
pS
Environmental Characteristics
ESD Protection (Mil-Std-883 Method 3015)
4
KV
Operating Temperature
TJ
-55
+125
C
Storage Temperature
Tstg
-65
+150
C
Diode Power Rating
20
mW/diode
Electrical & Environmental Characteristics
*RoHS COMPLIANT
VERSIONS
AVAILABLE
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Thin Film on Silicon 2DTA High Performance Memory Bus Terminator
A
.635
(.025)
TYP.
3.81 - 3.99
(.150 - .157)
PIN 1
.21 - .31
(.008 - .012)
1.35 - 1.75
(.053 - .069)
.10 - .25
(.004 - .010)
0-8
.19 - .25
(.007 - .010)
.41 - 1.27
(.016 - .050)
5.80 - 6.20
(.228 - .244)
Model
A
2QSP24
8.56 - 8.74 (.337 - .344)
Governing dimensions are in mm. Dimensions in
parentheses are in inches and are approximate.
JEDEC Reference Number MO-137.
Mechanical Characteristics
QSOP Package Dimensions
QSOP Package Power Temperature Derating Curve
Typical Part Marking
WATTS
AMBIENT TEMPERATURE ( C )
1.0
1.25
.75
.50
.25
2QSP24
0
50
75
100
125
150
25
Represents total content. Layout may vary.
005
DTA24Q
YYWW
PRODUCT
FUNCTION
FORWARD
VOLTAGE
PIN COUNT
PACKAGE STYLE
DATE CODE
MANUFACTURER'S
TRADEMARK
PIN 1 INDICATOR
(MOLDED INDENT)
Applications
High speed synchronous DRAM, SGRAM, SyncLink memory bus termination
High speed SRAM cache
100 MHz PCI and AGP bus termination
Local bus termination for all popular microprocessors
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Thin Film on Silicon 2DTA High Performance Memory Bus Terminator
Dispensing
For large quantities, the product will be dispensed in Tape and Reel (see diagram below).
No. of Pieces No. of Pieces
Package
A0
B0
K0
Width
Pitch
per 13 " reel
per tube
QSOP
24 Pin
6.5 (0.256)
9.0 (0.354)
2.1 (0.083)
16 (0.630)
8 (0.315)
3,500
56
04/05
A0
B0
K0
DIMENSIONS = MM (INCHES)
How To Order
2 DTA-5 - Q 24 R __
Product Class
Thin-Film-on-Silicon
Product Function
DTA = Memory Bus Terminator
Forward Voltage (Vf)
(See Electrical Characteristics)
Standard Package Style
Q = QSOP
Pin Count
Q = 24
Dispensing
R = Reel T = Tube
Terminations
LF = 100 % Sn (lead free)
Blank = Sn/Pb
Asia-Pacific:
Tel: +886-2 2562-4117 Fax: +886-2 2562-4116
Europe:
Tel: +41-41 768 5555 Fax: +41-41 768 5510
The Americas:
Tel: +1-951 781-5500 Fax: +1-951 781-5700
www.bourns.com
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