The SY10/100E431 are 3-bit flip-flops with differential
clock, data input and data output.
The asynchronous Set and Reset controls are edge-
triggered rather than level controlled. This allows the user
to rapidly set or reset the flip-flop and then continue
clocking at the next clock edge without the necessity of
de-asserting the set/reset signal (as would be the case
with a level controlled set/reset).
The E431 is also designed with larger internal swings,
an approach intended to minimize the time spent crossing
the threshold region and thus reduces the metastability
susceptibility window.
BLOCK DIAGRAM
S
0
D
0
D
0
CLK
0
CLK
0
R
0
S
1
D
1
D
1
CLK
1
CLK
1
R
1
S
2
D
2
D
2
CLK
2
CLK
2
R
2
V
BB
D
S
Q
Q
R
Q
2
Q
2
D
S
Q
Q
R
Q
1
Q
1
D
S
Q
Q
R
Q
0
Q
0
PIN NAMES
Pin
D[0:2], D[0:2]
CLK[0:2], CLK[0:2]
S[0:2]
R[0:2]
V
BB
Q[0:2], Q[0:2]
V
CCO
Function
Differential Data Inputs
Differential Clock Inputs
Edge Triggered Set Inputs
Edge Triggered Reset Inputs
V
BB
Reference Output
Differential Data Outputs
V
CC
to Output
TRUTH TABLE
(1)
D
n
L
H
X
X
CLK
n
Z
Z
L
L
R
n
L
L
Z
L
S
n
L
L
L
Z
Q
n
L
H
L
H
NOTE:
1. Z = LOW-to-HIGH transition.
M9999-032206
hbwhelp@micrel.com or (408) 955-1690
Rev.: E
Amendment: /0
1
Issue Date: March 2006
Micrel, Inc.
SY10E431
SY100E431
PACKAGE/ORDERING INFORMATION
CLK
2
CLK
2
D
2
V
BB
Ordering Information
(1)
D
2
R
2
S
2
Part Number
25 24 23 22 21 20 19
Package
Type
J28-1
J28-1
J28-1
J28-1
J28-1
J28-1
J28-1
J28-1
Operating
Range
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Package
Marking
SY10E431JC
SY10E431JC
SY100E431JC
SY100E431JC
SY10E431JZ with
Pb-Free bar-line indicator
SY10E431JZ with
Pb-Free bar-line indicator
SY100E431JZ with
Pb-Free bar-line indicator
SY100E431JZ with
Pb-Free bar-line indicator
Lead
Finish
Sn-Pb
Sn-Pb
Sn-Pb
Sn-Pb
Matte-Sn
Matte-Sn
Matte-Sn
Matte-Sn
CLK
1
CLK
1
R
1
V
EE
S
1
D
1
D
1
26
27
28
1
2
3
4
5
6
7
8
9
10 11
18
17
Q
2
Q
2
V
CC
Q
1
Q
1
Q
0
Q
0
SY10E431JC
SY10E431JCTR
(2)
SY100E431JC
SY100E431JCTR
(2)
SY10E431JZ
(3)
SY10E431JZTR
(2, 3)
SY100E431JZ
(3)
SY100E431JZTR
(2, 3)
Notes:
TOP VIEW
PLCC
J28-1
16
15
14
13
12
CLK
0
CLK
0
D
0
D
0
28-Pin PLCC (J28-1)
V
CCO
R
0
S
0
1. Contact factory for die availability. Dice are guaranteed at T
A
= 25°C, DC Electricals only.
2. Tape and Reel.
3. Pb-Free package is recommended for new designs.
M9999-032206
hbwhelp@micrel.com or (408) 955-1690
2
Micrel, Inc.
SY10E431
SY100E431
DC ELECTRICAL CHARACTERISTICS
V
EE
= V
EE
(Min.) to V
EE
(Max.); V
CC
= V
CCO
= GND
T
A
= 0
°
C
Symbol
V
BB
Parameter
Output Reference Voltage
10E
100E
Input HIGH Current
Power Supply Current
10E
100E
V
CMR
Common Mode Range
—
—
–1.5
110
110
—
132
132
0
—
—
–1.5
110
110
—
132
132
0
—
—
–1.5
110
127
—
132
152
0
V
1
Min.
–1.38
–1.38
—
Typ.
—
—
—
Max.
Min.
T
A
= +25
°
C
Typ.
—
—
—
Max.
T
A
= +85
°
C
Min.
Typ.
—
—
—
Max.
–1.19
–1.26
150
µA
mA
—
—
Unit
V
–1.27 –1.35
–1.26 –1.38
150
—
–1.25 –1.31
–1.26 –1.38
150
—
Condition
—
I
IH
I
EE
Notes:
1. V
CMR
is referenced to the most positive side of the differential input signal. Normal operation is obtained when the input signals are within the V
CMR
range
and the input swing is greater than V
PP
(min.) and <1V.
AC ELECTRICAL CHARACTERISTICS
V
EE
= V
EE
(Min.) to V
EE
(Max.); V
CC
= V
CCO
= GND
T
A
= 0
°
C
Symbol
f
MAX
t
PD
Parameter
Max. Toggle Frequency
Propagation Delay to Output
CLK (Diff)
CLK (SE)
R
S
Set-up Time
D
R
S
Hold Time, D
Minimum Pulse Width, CLK
Within-Device Skew
Minimum Input Swing
Rise/Fall Time
20% to 80%
Min.
1100
450
400
550
550
200
1000
1000
200
400
—
150
275
Typ.
1400
600
600
725
725
0
700
700
0
—
50
—
450
Max.
—
750
800
925
925
—
—
—
—
—
—
—
650
Min.
1100
450
400
550
550
200
1000
1000
200
400
—
150
275
T
A
= +25
°
C
Typ.
1400
600
600
725
725
0
700
700
0
—
50
—
450
Max.
—
750
800
925
925
—
—
—
—
—
—
—
650
T
A
= +85
°
C
Min.
1100
450
400
550
550
200
1000
1000
200
400
—
150
275
Typ.
1400
600
600
725
725
0
700
700
0
—
50
—
450
Max.
—
750
800
925
925
ps
—
—
—
—
—
—
—
650
ps
ps
ps
mV
ps
1
1
—
—
2
3
—
Unit
MHz
ps
Condition
—
—
t
S
t
H
t
PW
t
skew
V
PP (AC)
t
r
t
f
Notes:
1. These set-up times define the minimum time the CLK or SET/RESET input must wait after the assertion of the RESET/SET input to assure the proper
operation of the flip-flop.
2. Within-device skew is defined as identical transitions on similar paths through a device.
3. Minimum input swing for which AC parameters are guaranteed.
M9999-032206
hbwhelp@micrel.com or (408) 955-1690
3
Micrel, Inc.
SY10E431
SY100E431
28-PIN PLCC (J28-1)
Rev. 03
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131
TEL
USA
+ 1 (408) 944-0800
FAX
+ 1 (408) 474-1000
WEB
http://www.micrel.com
The information furnished by Micrel in this data sheet 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.
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