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MC100EL51 Datasheet

Differential Clock D Flip-Flop

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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Differential Clock D FlipĆFlop
The MC10EL/100EL51 is a differential clock D flip-flop with reset. The
device is functionally similar to the E151 device with higher performance
capabilities. With propagation delays and output transition times
significantly faster than the E151 the EL51 is ideally suited for those
applications which require the ultimate in AC performance.
The reset input is an asynchronous, level triggered signal. Data enters
the master portion of the flip-flop when the clock is LOW and is
transferred to the slave, and thus the outputs, upon a positive transition of
the clock. The differential clock inputs of the EL51 allow the device to be
used as a negative edge triggered flip-flop.
The differential input employs clamp circuitry to maintain stability under
open input (pulled down to VEE) conditions.
475ps Propagation Delay
2.8GHz Toggle Frequency
75kInternal Input Pulldown Resistors
>1000V ESD Protection
LOGIC DIAGRAM AND PINOUT ASSIGNMENT
R1
D2
CLK 3
CLK 4
R
D
Flip-Flop
8 VCC
7Q
6Q
5 VEE
MC10EL51
MC100EL51
8
1
D SUFFIX
PLASTIC SOIC PACKAGE
CASE 751-05
TRUTH TABLE
D R CLK Q
LL Z
L
HL Z
H
XH X
L
Z = LOW to HIGH Transition
12/93
© Motorola, Inc. 1996
3–1
REV 2


Motorola Electronic Components Datasheet

MC100EL51 Datasheet

Differential Clock D Flip-Flop

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MC10EL51 MC100EL51
DC CHARACTERISTICS (VEE = VEE(min) to VEE(max); 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
10EL
Current
100EL
24 29
24 29
24 29
24 29
24 29
24 29
24 29 mA
30 36
VEE
Power Supply
Voltage
10EL –4.75 –5.2 –5.5 –4.75 –5.2 –5.5 –4.75 –5.2 –5.5 –4.75 –5.2 –5.5
100EL –4.20 –4.5 –5.5 –4.20 –4.5 –5.5 –4.20 –4.5 –5.5 –4.20 –4.5 –5.5
V
IIH Input HIGH Current
150 150 150 150 µA
AC CHARACTERISTICS (VEE = VEE(min) to VEE(max); 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
fMAX
Maximum Toggle
Frequency
1.8 2.8
2.2 2.8
2.2 2.8
2.2 2.8
GHz
tPLH
tPHL
Propagation Delay
to Output
CLK 325 465 605 375 465 555 385 475 565 440 530 620
R 305 455 605 355 455 555 355 465 565 410 510 620
ps
tS
tH
tRR
tPW
VPP
VCMR
tr
tf
Setup Time
150
Hold Time
250
Reset Recovery
400
Minimum Pulse Width
CLK, Reset
Minimum Input Swing1
Common Mode Range2
400
150
–0.4
Output Rise/Fall Times Q 100
(20% – 80%)
0 150
100 250
200 400
400
150
See2 –0.4
225 350 100
0 150
100 250
200 400
400
150
See2 –0.4
225 350 100
0 150
100 250
200 400
400
150
See2 –0.4
225 350 100
0 ps
100 ps
200 ps
ps
mV
See2 V
225 350 ps
1. Minimum input swing for which AC parameters are guaranteed.
2. 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 is dependent on VEE and is
equal to VEE + 2.5V.
MOTOROLA
3–2 ECLinPS and ECLinPS Lite
DL140 — Rev 3


Part Number MC100EL51
Description Differential Clock D Flip-Flop
Maker Motorola
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MC100EL51 Datasheet PDF






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