MC100EL56 반도체 회로 부품 판매점
Dual Differential 2:1 Multiplexer
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 Motorola Semiconductors |
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Dual Differential
2:1 Multiplexer
The MC100LVEL56 is a dual, fully differential 2:1 multiplexer. The
MC100EL56 is pin and functionally equivalent to the MC100LVEL56 but
is specified for operation at the standard 100E ECL voltage supply. The
differential data path makes the device ideal for multiplexing low skew
clock or other skew sensitive signals. Multiple VBB pins are provided to
ease AC coupling input signals (for more information on AC coupling ECL
signals refer to the interfacing section of the ECLinPS data book
DL140/D).
The device features both individual and common select inputs to
address both data path and random logic applications.
The differential inputs have special circuitry which ensures device
stability under open input conditions. When both differential inputs are left
open the D input will pull down to VEE, The D input will bias around VCC/2
forcing the Q output LOW.
• Differential Inputs and Outputs
• 20–Lead SOIC Packaging
• 440ps Typical Propagation Delays
• Separate and Common Select
• Supports Both Standard and Low Voltage 100K ECL
• Internal Input Pulldowns
• >2000V ESD Protection
Logic Diagram and Pinout: 20-Lead SOIC (Top View)
VCC Q0
20 19
Q0 SEL0
SEL1 VCC Q1
18 17 16 15 14 13
Q1 VEE
12 11
MC100LVEL56
MC100EL56
20
1
DW SUFFIX
PLASTIC SOIC PACKAGE
CASE 751D–04
TRUTH TABLE
SEL
H
L
Data
a
b
PIN NAMES
Pins
D0a–D1a
D0b–D1b
SEL0–SEL1
COM_SEL
Q0–Q1
Q0–Q1
Function
Input Data a
Input Data b
Individual Select Input
Common Select Input
True Outputs
Inverted Outputs
1 2 3 4 5 6 7 8 9 10
D0a D0a VBB0 D0b D0b D1a D1a VBB1 D1b D1b
4/95
© Motorola, Inc. 1996
4–1
REV 1
MC100LVEL56 MC100EL56
MC100LVEL56
DC CHARACTERISTICS (VEE = –3.0V to –3.8V; VCC = GND)
–40°C
0°C
25°C
85°C
Symbol
Characteristic
Min Typ Max Min Typ Max Min Typ Max Min Typ Max Unit
IEE Power Supply Current
20 24
20 24
20 24
20 24 mA
VBB
Output Reference Voltage –1.38
–1.26 –1.38
–1.26 –1.38
–1.26 –1.38
–1.26 V
IIH Input HIGH Current
150 150 150 150 µA
IINL Input LOW Current Dn 0.5
Dn –600
0.5
–600
0.5
–600
0.5
–600
µA
VPP(DC) Input Sensitivity1
50
50
50
50
V
1. Differential input voltage required to obtain a full ECL swing on the outputs.
MC100LVEL56
AC CHARACTERISTICS (VEE = –3.0V to –3.8V; VCC = GND)
–40°C
0°C
25°C
85°C
Symbol
Characteristic
Min Typ Max Min Typ Max Min Typ Max Min Typ Max Unit
tPLH
tPHL
Propagation
Delay
to Output
D (Diff)
D (SE)
SEL
COMSEL
340
290
430
430
540 350
590 300
730 440
730 440
550 360
600 310
740 440
740 440
560 380
610 330
740 450
740 450
580 ps
630
750
750
tSKEW Within–Device Skew1
40 80
40 80
40 80
40 80 ps
tSKEW Duty Cycle Skew2
100 100 100 100 ps
VPP(AC) Minimum Input Swing3
150
1000 150
1000 150
1000 150
1000 mV
VCMR
Common Mode Range4
VPP < 500mV
VPP ≥ 500mV
–2.0
–1.8
–0.4 –2.1
–0.4 –1.9
–0.4 –2.1
–0.4 –1.9
–0.4 –2.1
–0.4 –1.9
V
–0.4
–0.4
tr Output Rise/Fall Times Q 200
tf (20% – 80%)
540 200
540 200
540 200
540 ps
1. Within-device skew is defined as identical transitions on similar paths through a device.
2. Duty cycle skew is defined only for differential operation when the delays are measured from the cross point of the inputs to the cross point
of the outputs.
3. Minimum input swing for which AC parameters are guaranteed.
4. The CMR range is referenced to the most positive side of the differential input signal. Normal operation is obtained if the HIGH level falls within
the specified range and the peak-to-peak voltage lies between VPPmin and 1V. The lower end of the CMR range varies 1:1 with VEE. The
numbers in the spec table assume a nominal VEE = –3.3V. Note for PECL operation, the VCMR(min) will be fixed at 3.3V – |VCMR(min)|.
MOTOROLA
4–2 ECLinPS and ECLinPS Lite
DL140 — Rev 3
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MC100EL56 multiplexer
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