QRC1284 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – TaNCap IEEE 1284 Integrated Filter Network

TaNCap^™ IEEE 1284
Integrated Filter Network
QRC1284x2^™ Series
• Single chip parallel port solution
• Small 28-pin QSOP package
• Built-in ESD protection into 17 lines
• Highly integrated - Replaces 43 discretes
• Proven TaNCap™ Thin film technology
Welwyn Components
Electrical Data
Tolerance
TCR
Operating temperature range
Maximum power dissipation
Operating voltage
%
ppm/°C
°C
watts
volts
Resistors
±10
±100
-40 to +85
0.1 per resistor
±6 volts
Capacitors
±20
N/A
-40 to +85
N/A
The TaNCap^™ QRC1284x2 is a single package solution
designed for the IEEE1284 enhanced parallel port interface
and other digital interface applications. This highly integrated
TaNCap^™ thin film technology network offers four different
functions in a single 28-pin QSOP package.
R1 is a pull-up resistor for, R2 is a series termination resistor
and C is a low pass filter capacitor. ESD protection is provided
for each termination line.
The 28-pin in QSOP package offers a high level of integration
in a single surface mount device. 43 discrete passive
components are replaced by one IEEE 1284x2 filter network.
The TaNCap series of resistor-capacitor networks are
manufactured using military and space proven tantalum
nitride thin film technology. For high reliability combined with
superior performance.
Schematic
Gnd
Vcc
28
27 26 25 24 23
22 21 20
19
18
17 16 15
R1
R1
R1
R1
R1
R1
R1
R1
ds _C
C ^ds C
ds _C
ds ^C
C
C
C
R2 ds R2 ds R2 ds R2 ds
R1
R1
R1
R1
R1
R1
R1
R1
R1
ds _C
C
R2
C
C
ds
ds
R2
ds
ds _C
C
R2
C
C
ds ds
ds
R2
C
ds
R2
1
2
3
4
5
6
78
ds = ESD diode structure
9 10
11 12
13 14
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
© Welwyn Components Limited · Bedlington, Northumberland NE22 7AA, UK
Telephone: [phone] · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
82
A subsidiary of
TT electronics plc
Issue B · 03.02