DIFFERENTIAL CLOCK D FLIP-FLOP

SY100EL51
DESCRIPTION
FEATURES
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■
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SY10EL51
SY100EL51
SY10EL51
DIFFERENTIAL
CLOCK D FLIP-FLOP
Micrel, Inc.
475ps propagation delay
2.8GHz toggle frequency
Internal 75KΩ input pull-down resistors
Available in 8-pin SOIC package
The SY10/100EL51 are differential clock D flip-flops
with reset. These devices are functionally similar to the
E151 devices, 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.
TRUTH TABLE(1)
PIN NAMES
Pin
Function
D
R
CLK
Q
R
Reset Input
L
L
Z
L
D
Data Input
H
L
Z
H
CLK
Clock Input
X
H
X
L
Q
Data Output
M9999-121205
[email protected] or (408) 955-1690
NOTE:
1. Z = LOW-to-HIGH transition.
Rev.: G
1
1
Amendment: /0
Issue Date: December 2005
SY10EL51
SY100EL51
Micrel, Inc.
PACKAGE/ORDERING INFORMATION
Ordering Information(1)
R
8
1
Part Number
Package
Type
Operating
Range
Package
Marking
Lead
Finish
VCC
SY10EL51ZC
Z8-1
Commercial
HEL51
Sn-Pb
Q
SY10EL51ZCTR(2)
Z8-1
Commercial
HEL51
Sn-Pb
SY100EL51ZC
Z8-1
Commercial
XEL51
Sn-Pb
R
D
2
D
7
Flip-Flop
CLK
3
6
Q
SY100EL51ZCTR(2)
Z8-1
Commercial
XEL51
Sn-Pb
CLK
4
5
VEE
SY10EL51ZI
Z8-1
Industrial
HEL51
Sn-Pb
SY10EL51ZITR(2)
Z8-1
Industrial
HEL51
Sn-Pb
SY100EL51ZI
Z8-1
Industrial
XEL51
Sn-Pb
SY100EL51ZITR(2)
Z8-1
Industrial
XEL51
Sn-Pb
SY10EL51ZG(3)
Z8-1
Industrial
HEL51 with
Pb-Free bar-line indicator
Pb-Free
NiPdAu
SY10EL51ZGTR(2, 3)
Z8-1
Industrial
HEL51 with
Pb-Free bar-line indicator
Pb-Free
NiPdAu
SY100EL51ZG(3)
Z8-1
Industrial
XEL51 with
Pb-Free bar-line indicator
Pb-Free
NiPdAu
SY100EL51ZGTR(2, 3)
Z8-1
Industrial
XEL51 with
Pb-Free bar-line indicator
Pb-Free
NiPdAu
8-Pin SOIC (Z8-1)
Notes:
1. Contact factory for die availability. Dice are guaranteed at TA = 25°C, DC Electricals only.
2. Tape and Reel.
3. Pb-Free package is recommended for new designs.
M9999-121205
[email protected] or (408) 955-1690
2
SY10EL51
SY100EL51
Micrel, Inc.
DC ELECTRICAL CHARACTERISTICS
VEE = VEE (Min.) to VEE (Max.); VCC = GND
TA = –40°C
Symbol
IEE
VEE
IIH
Parameter
Power Supply Current
10EL
100EL
TA = +25°C
TA = +85°C
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
—
—
24
24
29
29
19
19
24
24
29
29
19
19
24
24
29
29
19
24
24
30
29
36
–5.2
–4.5
–5.5
–5.5
–4.75
–4.20
–5.2
–4.5
–5.5
–5.5
–4.75
–4.20
–5.2
–4.5
–5.5
–5.5
–4.75
–4.20
–5.2
–4.5
–5.5
–5.5
—
150
—
—
150
—
—
150
—
—
150
Unit
mA
Power Supply Voltage
10EL –4.75
100EL –4.20
Input HIGH Current
TA = 0°C
—
V
µA
AC ELECTRICAL CHARACTERISTICS
VEE = VEE (Min.) to VEE (Max.); VCC = GND
TA = –40°C
Symbol
Parameter
fMAX
Maximum Toggle
Frequency
tPD
Min. Typ.
TA = 0°C
TA = +25°C
TA = +85°C
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
GHz
1.8
2.8
—
2.2
2.8
—
2.2
2.8
—
2.2
2.8
—
Propagation Delay to
Output
CLK
R
325
305
465
455
605
605
375
355
465
455
555
555
385
355
475
465
565
565
440
410
530
510
620
620
tS
Set-up Time
150
0
—
150
0
—
150
0
—
150
0
—
ps
tH
Hold Time
250
100
—
250
100
—
250
100
—
250
100
—
ps
tRR
Reset Recovery
400
200
—
400
200
—
400
200
—
400
200
—
ps
tPW
Minimum Pulse Width
CLK, Reset
400
—
—
400
—
—
400
—
—
400
—
—
ps
VPP
Minimum Input
Swing(1)
150
—
—
150
—
—
150
—
—
150
—
—
mV
VCMR
Common Mode
Range(2)
(2)
—
–0.4
(2)
—
–0.4
(2)
—
–0.4
(2)
—
–0.4
V
tr
tf
Output Rise/Fall Times Q 100
(20% to 80%)
225
350
100
225
350
100
225
350
100
225
350
ps
ps
NOTES:
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 VPP min. and 1V. The lower end of the CMR range is dependent on VEE and is equal to VEE + 3.0V.
M9999-121205
[email protected] or (408) 955-1690
3
SY10EL51
SY100EL51
Micrel, Inc.
8-PIN SOIC .150" WIDE (Z8-1)
Rev. 03
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131
TEL
+ 1 (408) 944-0800
FAX
+ 1 (408) 474-1000
WEB
USA
http://www.micrel.com
The information furnished by Micrel in this datasheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use.
Micrel reserves the right to change circuitry and specifications at any time without notification to the customer.
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can
reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into
the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s
use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify
Micrel for any damages resulting from such use or sale.
© 2005 Micrel, Incorporated.
M9999-121205
[email protected] or (408) 955-1690
4
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