SY100EL52
5V ECL Differential Data and Clock D Flip-Flop
Features
•
•
•
•
365 ps Propagation Delay (typical)
2.8 GHz Toggle Frequency (typical)
Internal 75 kΩ Input Pull-Down Resistors
Available in 8-Lead SOIC Package
General Description
The SY100EL52 is a differential data, differential clock
D flip-flop. Data enters the master portion of the flip-flop
when the clock is low and is transferred to the slave,
then the outputs, upon a positive transition of the clock.
The differential clock inputs also allow the EL52 to be
used as a negative edge triggered device.
The EL52 employs input clamping circuitry so that,
under open input conditions (pulled down to V
EE
), the
outputs of the device will remain stable.
Package Type
SY100EL52
8-Lead SOIC (Z)
D
D
CLK
CLK
1
2
3
4
D
Flip-Flop
8
7
6
5
V
CC
Q
Q
V
EE
2018 Microchip Technology Inc.
DS20006066A-page 1
SY100EL52
1.0
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings †
PECL Power Supply Voltage (V
CC
) (Note
1)
...............................................................................................................+8V
NECL Power Supply Voltage (V
EE
) (Note
2)
...............................................................................................................–8V
PECL Mode Input Voltage (V
IN
) (Note
3)
....................................................................................................................+6V
NECL Mode Input Voltage (V
IN
) (Note
4)
....................................................................................................................–6V
Continuous Output Current (I
OUT
)...........................................................................................................................50 mA
Surge Output Current (I
OUT
) .................................................................................................................................100 mA
† Notice:
Stresses above those listed under “Absolute Maximum ratings” may cause permanent damage to the
device. Exposure to maximum rating conditions for extended periods may affect device reliability.
Note 1:
V
EE
= 0V.
2:
V
CC
= 0V.
3:
V
EE
= 0V, V
IN
≤
V
CC
.
4:
V
CC
= 0V, V
IN
≥
V
EE
.
TABLE 1-1:
DC ELECTRICAL CHARACTERISTICS
Electrical Characteristics PECL:
V
CC
= 4.2V to 5.5V; V
EE
= 0V; T
A
= –40°C to +85°C, unless otherwise stated.
(Note
1)
Parameter
Power Supply Voltage
Power Supply Current
Output High Voltage (Note
2)
Output Low Voltage (Note
2)
Input High Voltage
(Single-Ended)
Input Low Voltage
(Single-Ended)
Common Mode Range
(Note
3)
Input High Current
Input Low Current
Note 1:
Symbol
V
CC
I
EE
V
OH
V
OL
V
IH
V
IL
V
IHCMR
I
IH
I
IL
Min.
4.2
—
—
Typ.
5.0
21
24
Max.
5.5
25
29
Units
V
mA
V
V
V
V
V
µA
µA
Conditions
—
T
A
= –40°C to +25°C
T
A
= +85°C
T
A
= –40°C
T
A
= 0°C to +85°C
T
A
= –40°C
T
A
= 0°C to +85°C
—
—
D, /D
CLK, /CLK
—
V
IN
= V
IL(MIN)
V
CC
– 1.085 V
CC
– 1.005 V
CC
– 0.88
V
CC
– 1.025 V
CC
– 0.955 V
CC
– 0.88
V
CC
– 1.830 V
CC
– 1.695 V
CC
– 1.555
V
CC
– 1.810 V
CC
– 1.705 V
CC
– 1.620
V
CC
– 1.165
V
CC
– 1.810
V
CC
– 1.2
3.0
—
0.5
—
—
—
—
—
—
V
CC
– 0.88
V
CC
– 1.475
V
CC
– 0.4
V
CC
– 0.8
150
—
2:
3:
Devices are designed to meet the DC specifications shown in the above table after thermal equilibration
has been established. The circuit is in a test socket or mounted on a printed circuit board and transverse
airflow greater than 500 lfpm is maintained.
Outputs are terminated through a 50Ω resistor to V
CC
– 2.0V.
The CMR range is referenced to the most positive side of the differential input voltage. Normal operation is
obtained if the high level falls within the specified range and the peak-to-peak voltage lies between
150 mV and 1V.
DS20006066A-page 2
2018 Microchip Technology Inc.
SY100EL52
TABLE 1-2:
DC ELECTRICAL CHARACTERISTICS
Electrical Characteristics NECL:
V
EE
= –5.5V to –4.2V; V
CC
= 0V; T
A
= –40°C to +85°C, unless otherwise stated.
(Note
1)
Parameter
Power Supply Voltage
Power Supply Current
Output High Voltage (Note
2)
Output Low Voltage (Note
2)
Input High Voltage
(Single-Ended)
Output High Voltage
(Single-Ended)
Common Mode Range
(Note
3)
Input High Current
Input Low Current
Note 1:
Symbol
V
EE
I
EE
V
OH
V
OL
V
IH
V
IL
V
IHCMR
I
IH
I
IL
Min.
–5.5
—
—
–1.085
–1.025
–1.830
–1.810
–1.165
–1.810
–1.2
V
EE
+ 3.0
—
0.5
Typ.
–5.0
21
24
–1.005
–0.955
–1.695
–1.705
—
—
—
—
—
—
Max.
–4.2
25
29
–0.88
–0.88
–1.555
–1.620
–0.88
–1.475
–0.4
–0.8
150
—
Units
V
mA
V
V
V
V
V
µA
µA
Conditions
—
T
A
= –40°C to +25°C
T
A
= +85°C
T
A
= –40°C
T
A
= 0°C to +85°C
T
A
= –40°C
T
A
= 0°C to +85°C
—
—
D, /D
CLK, /CLK
—
V
IN
= V
IL(MIN)
2:
3:
Devices are designed to meet the DC specifications shown in the above table after thermal equilibration
has been established. The circuit is in a test socket or mounted on a printed circuit board and transverse
airflow greater than 500 lfpm is maintained.
Outputs are terminated through a 50Ω resistor to V
CC
– 2.0V.
The CMR range is referenced to the most positive side of the differential input voltage. Normal operation
is obtained if the high level falls within the specified range and the peak-to-peak voltage lies between
150 mV and 1V.
TABLE 1-3:
AC ELECTRICAL CHARACTERISTICS
Electrical Characteristics:
V
CC
= +4.2V to +5.5V, V
EE
= 0V or V
EE
= –5.5V to –4.2V, V
CC
= 0V; T
A
= –40°C to
+85°C, unless otherwise stated.
Parameter
Maximum Toggle Frequency
Propagation Delay to Output
CLK
Set-Up Time
Hold Time
Minimum Pulse Width
Input Swing (Note
1)
Output Rise/Fall Time Q (20%
to 80%)
Note 1:
Symbol
f
MAX
Min.
1.8
2.2
235
t
PD
t
S
t
H
t
PW
V
PP
t
r
/t
f
275
320
125
150
400
150
100
Typ.
2.5
2.8
335
365
410
0
50
—
—
225
Max.
—
—
515
465
510
—
—
—
1000
350
ps
ps
ps
mV
ps
ps
Units
GHz
Conditions
T
A
= –40°C
T
A
= 0°C to +85°C
T
A
= –40°C
T
A
= 0°C to +25°C
T
A
= +85°C
—
—
—
—
—
Input swing for which AC parameters are guaranteed.
2018 Microchip Technology Inc.
DS20006066A-page 3
SY100EL52
TEMPERATURE SPECIFICATIONS
Parameters
Temperature Ranges
Operating Temperature Range
Storage Temperature
Lead Temperature
T
A
T
S
T
LEAD
–40
–65
—
—
—
—
+85
+150
+260
°C
°C
°C
—
—
Soldering, 20 sec.
Sym.
Min.
Typ.
Max.
Units
Conditions
DS20006066A-page 4
2018 Microchip Technology Inc.
SY100EL52
2.0
PIN DESCRIPTIONS
PIN FUNCTION TABLE
Pin Name
1, 2
3, 4
5
6, 7
8
Data input.
Clock input.
Negative Power Supply.
Data output.
Positive Power Supply.
Description
The descriptions of the pins are listed in
Table 2-1.
TABLE 2-1:
Pin Number
D, /D
CLK, /CLK
V
EE
/Q, Q
V
CC
2.1
Truth Table
TRUTH TABLE
CLK
Z
Z
Z = Low-to-high transition.
Q
L
H
TABLE 2-2:
D
L
H
Note:
2018 Microchip Technology Inc.
DS20006066A-page 5
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