Pin
Function
D [0:4], /D [0:4]
Differential Data Inputs
MR
Master Reset Input
CLK, /CLK
Differential Clock Input
V
BB
V
BB
Reference Output
Q [0:4], Q [0:4]
Differential Data Outputs
V
CCO
V
CC
to Output
DESCRIPTION
FEATURES
s
Differential D, CLK and Q
s
Extended 100E V
EE
range of 4.2V to 5.5V
s
VBB output for single-ended use
s
1100MHz min. toggle frequency
s
Asynchronous Master Reset
s
Fully compatible with Motorola MC10E/100E452
s
Available in 28-pin PLCC package
The SY10/100E452 are 5-bit differential registers with
differential data (inputs and outputs) and clock. The
registers are triggered by a positive transition of the
positive clock (CLK) input. A high on the Master Reset
(MR) asynchronously resets all registers so that the Q
outputs go LOW.
The differential input structures are clamped so that
the inputs of unused registers can be left open without
upsetting the bias network of the devices. The clamping
action will assert the /D and the /CLK sides of the inputs.
Because of the edge-triggered flip-flop nature of the
devices, simultaneously opening both the clock and data
inputs will result in an output which reaches an
unidentified but valid state.
The fully differential design of the devices makes them
ideal for very high frequency applications where a
registered data path is necessary.
5-BIT DIFFERENTIAL
REGISTER
SY10E452
SY100E452
Rev.: D
Amendment: /0
Issue Date:
May, 1999
BLOCK DIAGRAM
D
0
D
0
Q
0
Q
0
V
BB
CLK
CLK
D
Q
R
MR
D
1
D
1
Q
1
Q
1
D
Q
R
D
2
D
2
Q
2
Q
2
D
Q
R
D
3
D
3
Q
3
Q
3
D
Q
R
D
4
D
4
Q
4
Q
4
D
Q
R
PIN CONFIGURATION
PIN NAMES
18
17
16
15
14
13
12
5
6
7
8
9
10 11
26
27
28
1
2
3
4
TOP VIEW
PLCC
J28-1
25 24 23 22 21 20 19
MR
CLK
V
EE
V
BB
D
2
CLK
D
2
D
1
D
0
V
CCO
Q
0
D
1
D
0
Q
0
Q
3
V
CC
Q
2
Q
1
Q
3
Q
2
Q
1
D
4
V
CCO
Q
4
D
3
D
3
D
4
Q
4
1
2
SY10E452
SY100E452
Micrel
DC ELECTRICAL CHARACTERISTICS
V
EE
= V
EE
(Min.) to V
EE
(Max.); V
CC
= V
CCO
= GND
T
A
= -40
C
T
A
= 0
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
V
BB
Output Reference
10E -1.43
--
-1.30
-1.38
--
-1.27
-1.35
--
-1.25
-1.31
--
-1.19
V
Voltage
100E -1.38
--
-1.26
-1.38
--
-1.26
-1.38
--
-1.26
-1.38
--
-1.26
I
IH
Input HIGH Current
--
--
150
--
--
150
--
--
150
--
--
150
A
I
EE
Power Supply
10E
--
74
89
--
74
89
--
74
89
--
74
89
mA
Current
100E
--
74
89
--
74
89
--
74
89
--
85
102
V
CMR
Common Mode Range
(1)
-2.0
--
-0.4
-2.0
--
-0.4
-2.0
--
-0.4
-2.0
--
-0.4
V
NOTE:
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
= -40
C
T
A
= 0
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
f
MAX
Max. Toggle Frequency
1000
1400
--
1100
1400
--
1100
1400
--
1100
1400
--
MHz
t
PLH
Propagation Delay to
ps
t
PHL
Output
CLK (Diff)
425
600
850
475
600
800
475
600
800
475
600
800
CLK (SE)
375
600
900
425
600
850
425
600
850
425
600
850
MR
375
625
900
425
625
850
425
625
850
425
625
850
t
S
Set-up Time, D
175
50
--
150
50
--
150
50
--
150
50
--
ps
t
H
Hold Time, D
225
50
--
200
50
--
200
50
--
200
50
--
ps
t
RR
Reset Recovery Time
750
450
--
700
450
--
700
450
--
700
450
--
ps
t
PW
Minimum Pulse Width
ps
CLK
400
--
--
400
--
--
400
--
--
400
--
--
MR
400
--
--
400
--
--
400
--
--
400
--
--
t
skew
Within-Device Skew
(1)
--
50
--
--
50
--
--
50
--
--
50
--
ps
V
PP (AC)
Minimum Input Swing
(2)
150
--
--
150
--
--
150
--
--
150
--
--
mV
t
r
Rise/Fall Time
250
475
725
275
475
675
275
475
675
275
475
675
ps
t
f
2080%
NOTES:
1. Within-device skew is defined as identical transitions on similar paths through a device.
2. Minimum input swing for which AC parameters are guaranteed.
Ordering
Package
Operating
Code
Type
Range
SY10E452JI
J28-1
Industrial
SY10E452JITR
J28-1
Industrial
SY100E452JI
J28-1
Industrial
SY100E452JITR
J28-1
Industrial
PRODUCT ORDERING CODE
Ordering
Package
Operating
Code
Type
Range
SY10E452JC
J28-1
Commercial
SY10E452JCTR
J28-1
Commercial
SY100E452JC
J28-1
Commercial
SY100E452JCTR
J28-1
Commercial
4
SY10E452
SY100E452
Micrel
MICREL-SYNERGY
3250 SCOTT BOULEVARD
SANTA CLARA
CA 95054
USA
TEL
+ 1 (408) 980-9191
FAX
+ 1 (408) 914-7878
WEB
http://www.micrel.com
This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or
other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc.
2000 Micrel Incorporated
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