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PDF Edge818 Data sheet ( Hoja de datos )

Número de pieza Edge818
Descripción Octal 18V Pin Electronics Driver/window Comparator
Fabricantes Semtech 
Logotipo Semtech Logotipo



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No Preview Available ! Edge818 Hoja de datos, Descripción, Manual

EDGE HIGH-PERFORMANCE PRODUCTS
Description
Edge818
Octal 18V Pin Electronics
Driver/window Comparator
Features
The Edge818 is an octal pin electronics driver and window
comparator fabricated in a wide voltage CMOS process.
It is designed specifically for Test During Burn In (TDBI)
applications, where cost, functional density, and power
are all at a premium.
The Edge818 incorporates eight channels of
programmable drivers and window comparators into one
14 mm X 20 mm 100 pin MQFP package. Each channel
has per pin driver levels, data, and high impedance
control. In addition, each comparator has per pin high
and low threshold levels.
The Edge818 uses "Flex In" and "Flex Out" digital inputs,
and can therefore mate directly with any digital technology
providing a minimum 2V swing. The digital outputs can
mate directly with any digital technology.
The 18V driver output and receiver input range allow the
Edge818 to interface directly with TTL, ECL, CMOS (3V,
5V, and 7V), LVCMOS, and custom level circuitry, as well
as the high voltage (Super Voltage) level required for
many special test modes for Flash Devices.
• 18V I/O Range
• 50 MHz Operation
• Per Pin Flexibility
• Programmable Input Thresholds
• Flex In Digital Inputs
• Flex Out Digital Outputs
• Small footprint (100 pin MQFP)
Applications
• Burn In ATE
• Low Cost ATE
• Instrumentation
Functional Block Diagram
VH VL
DATA
EN*
QA
COMP HIGH
COMP LOW
QB
8
8
8
8
8
DOUT
8
CVA
+
8
VINP
+8
CVB
Revision 1/ May 23, 2000
1
www.semtech.com

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Edge818 pdf
EDGE HIGH-PERFORMANCE PRODUCTS
Circuit Description (continued)
The comparator outputs are "Flex Out". They are
technology independent and may be adjusted over a wide
voltage common mode range. COMP HIGH and COMP
LOW are analog inputs which set the digital high and low
levels (respectively) of QA and QB. COMP HIGH and
COMP LOW are unbuffered inputs that provide the
necessary drive current, so the sources for these levels
must have adequate current capability.
COMP HIGH
QAX, QBX
COMP LOW
Figure 4. Simplified Model of the
Unbuffered Comparator Output Stage
Typically, COMP HIGH and COMP LOW will be connected
to the digital power supplies of the chip receiving QA
and QB.
Receiver Headroom
There is ~2V of headroom required between the
comparator thresholds and both power supply levels.
VEE + 2.0 CVA, CVB VCC 2.0
2000 Semtech Corp.
5
Edge818
www.semtech.com

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Edge818 arduino
Edge818
EDGE HIGH-PERFORMANCE PRODUCTS
AC Characteristics
Parameter
Driver
DATA to DOUT
EN* to DOUT (Active to HiZ) (Note 1)
EN* to DOUT (HiZ to Active)
Rise/Fall Times (Note 2)
1V Swing (20% - 80%)
3V Swing (10% - 90%)
5V Swing (10% - 90%)
10V Swing (10% - 90%)
15V Swing (10% - 90%)
Maximum Operating Frequency (Note 3)
Minimum Pulse Width
Receiver
Comparator
Tpd+
Tpd-
Maximum Operating Frequency (Note 3)
Minimum Pulse Width
Symbol
Tpd
Tpd
Tpd
Tr/Tf
Tr/Tf
Tr/Tf
Tr/Tf
Tr/Tf
Fmax
700 ps
Fmax
Min
9.5
10
11
50
11.5
14.5
50
Typ
14.5
20
16
1.5
1.9
2.0
2.5
3.2
8
17.5
20.5
10
Max Units
19.5
30
21
11
ns
ns
ns
ns
ns
ns
ns
ns
MHz
ns
19.5
23.5
15
ns
ns
MHz
ns
Test conditions (unless otherwise specified): "Recommended Operating Conditions".
Note 1:
Note 2:
Note 3:
Load = 10 mA and measured when a 1V change at the output is detected. (VH = 3V,
VL = 0V, VFLOAT = 1.5V, tested at 1V and 2V.)
Into 18 cm of 50 transmission line terminate with 1 K, with proper series termination
resistor.Guaranteed by characterization. This parameter is not tested in production.
This parameter is production tested at 40 MHz.
2000 Semtech Corp.
11 www.semtech.com

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