Pin
Function
OGND
TTL Output Ground (0V)
OVT
TTL Output V
CC
(+3.0V)
IGND
Internal TTL GND (0V)
IVT
Internal TTL V
CC
(+3.0V)
V
EE
ECL V
EE
(0V)
V
CCE
ECL Ground (+3.0V)
ECLK, ECLK
Differential Signal Input (PECL)
V
BB
V
BB
Reference Output
Q
0
Q
7
Signal Outputs (TTL)
EN
Three-State Enable Input (TTL)
TCLK
Signal Input (TTL)
DESCRIPTION
FEATURES
s
3.3V power supply
s
PECL/TTL-to-TTL version of popular ECLinPS
E111AE/LE
s
Guaranteed low skew specification
s
Three-state enable
s
Differential internal design
s
V
BB
output for single-ended operation
s
Extra TTL and ECL power/ground pins
s
Choice of ECL compatibility: 10K or 100K
s
Matched high and low output impedance
s
Available in 28-pin PLCC package
The SY10/100H646L are single supply, low skew
translating 1:8 clock drivers. Devices in the Micrel-
Synergy H600 translator series utilize the 28-lead PLCC
for optimal power pinning, signal flow-through and
electrical performance. The single supply H646L is similar
to the HA643 which is a dual supply 1:8 version of the
same function.
These devices feature a 24mA TTL output stage, with
AC performance specified into a 20pF load capacitance.
The 10H version is compatible with 10K ECL logic
levels. The 100H version is compatible with 100K levels.
Rev.: E
Amendment: /0
Issue Date:
May, 1999
BLOCK DIAGRAM
PIN NAMES
PIN CONFIGURATION
18
17
16
15
14
13
12
5
6
7
8
9
10 11
26
27
28
1
2
3
4
TOP VIEW
PLCC
25 24 23 22 21 20 19
Q
5
OVT
Q
6
OGND
Q
4
OGND
Q
7
Q
3
OGND
Q
2
OVT
Q
1
OGND
Q
0
IVT
V
EE
V
EE
V
EE
ECLK
TCLK
IGND
EN
IGND
V
CCE
V
CCE
V
BB
IVT
ECLK
ClockWorksTM
SY10H646L
SY100H646L
3.3V SINGLE SUPPLY
OCTAL PECL/TTL-TO-TTL
Q
0
Q
1
Q
2
Q
3
Q
4
Q
5
Q
6
Q
7
TCLK
ECLK
ECLK
EN
V
BB
1
2
ClockWorksTM
SY10H646L
SY100H646L
Micrel
DC ELECTRICAL CHARACTERISTICS
OVT = IVT = V
CCE
= 3.0V to 3.6V
T
A
= 0
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Condition
I
CCL
Power Supply Current
--
120
--
120
--
120
mA
Total all OVT,
I
CCH
--
120
--
120
--
120
IVT, and V
CCE
pins
TTL DC ELECTRICAL CHARACTERISTICS
OVT = IVT = V
CCE
= 3.0V to 3.6V
T
A
= 0
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Condition
V
IH
Input HIGH Voltage
2.0
--
2.0
--
2.0
--
V
V
IL
Input LOW Voltage
--
0.8
--
0.8
--
0.8
V
I
IH
Input HIGH Current
--
20
--
20
--
20
A
V
IN
= 2.7 V
--
100
--
100
--
100
V
IN
= V
CC
I
IL
Input LOW Current
--
0.4
--
0.4
--
0.4
mA
V
IN
= 0.5 V
V
OH
Output HIGH Voltage
2.0
--
2.0
--
2.0
--
V
I
OH
= 3.0 mA
V
OL
Output LOW Voltage
--
0.5
--
0.5
--
0.5
V
I
OL
= 24 mA
V
IK
Input Clamp Voltage
--
1.2
--
1.2
--
1.2
V
I
IN
= 18mA
I
OS
Output Short Circuit Current
100
--
100
--
100
--
mA
V
OH
= 0V
TRUTH TABLE
TCLK
ECLK
ECLK
EN
Q
GND
L
H
H
L
GND
H
L
H
H
H
GND
GND
H
H
L
GND
GND
H
L
X
X
X
L
Z
NOTE:
X = Don't Care
L = Low Voltage Level
H = High Voltage Level
Z = Three-State
Symbol
Rating
Value
Unit
V
E
(ECL)
Power Supply
0.5 to +7.0
V
V
T
(TTL)
Voltage
0.5 to +7.0
V
I
(ECL)
Input Voltage
0.0 to V
EE
V
V
I
(TTL)
0.5 to V
CC
V
OUT
(TTL)
Disabled 3-State
0.0 to V
CCT
V
Output
I
OUT
(ECL)
Output Current
mA
- Continuous
50
- Surge
100
T
store
Storage Temperature
65 to +150
C
T
A
Operating Temperature
0 to +85
C
ABSOLUTE MAXIMUM RATINGS
(1)
NOTE:
1. Do not exceed.
3
ClockWorksTM
SY10H646L
SY100H646L
Micrel
OVT = IVT = V
CCE
= 3.0V to 3.6V
T
A
= 0
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Condition
I
IH
Input HIGH Current
--
225
--
175
--
175
A
--
I
IL
Input LOW Current
0.5
--
0.5
--
0.5
--
A
--
V
IH
Input HIGH Voltage
(1)
2.130
2.460
2.170
2.490
2.240
2.580
V
V
E
= 3.3V
V
IL
Input LOW Voltage
(1)
1.350
1.820
1.350
1.820
1.350
1.855
V
V
E
= 3.3V
V
BB
Output Reference Voltage
(1)
1.920
2.030
1.950
2.050
1.990
2.110
V
V
E
= 3.3V
NOTE:
1. V
IH
, V
IL
and V
BB
are referenced to V
CC
and will vary 1:1 with the power supply. The levels shown are for V
CC
= +3.3V.
10H ECL DC ELECTRICAL CHARACTERISTICS
100H ECL DC ELECTRICAL CHARACTERISTICS
OVT = IVT = V
CCE
= 3.0V to 3.6V
T
A
= 0
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Condition
I
IH
Input HIGH Current
--
225
--
175
--
175
A
--
I
IL
Input LOW Current
0.5
--
0.5
--
0.5
--
A
--
V
IH
Input HIGH Voltage
(1)
2.135
2.420
2.135
2.420
2.135
2.420
V
V
E
= 3.3V
V
IL
Input LOW Voltage
(1)
1.490
1.825
1.490
1.825
1.490
1.825
V
V
E
= 3.3V
V
BB
Output Reference Voltage
(1)
1.920
2.040
1.920
2.040
1.920
2.040
V
V
E
= 3.3V
NOTE:
1. V
IH
, V
IL
and V
BB
are referenced to V
CC
and will vary 1:1 with the power supply. The levels shown are for V
CC
= +3.3V.
4
ClockWorksTM
SY10H646L
SY100H646L
Micrel
LOGIC DIAGRAM
PRODUCT ORDERING CODE
Ordering
Package
Operating
Code
Type
Range
SY10H646LJC
J28-1
Commercial
SY10H646LJCTR
J28-1
Commercial
SY100H646LJC
J28-1
Commercial
SY100H646LJCTR
J28-1
Commercial
IV
T
= OVT = V
CCE
= 3.0V to 3.6V
T
A
= 0
C
T
A
= +25
C
T
A
= +85
C
Symbol
Parameter
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
Condition
t
PLH
Propagation Delay ECLK to Q
2.3
--
3.3
2.25
--
3.25
2.2
--
3.2
ns
C
L
= 20pF
t
PHL
TCLK to Q
2.3
--
3.3
2.25
--
3.25
2.2
--
3.2
t
skpp
Part-to-Part Skew
(1,4)
--
--
0.5
--
--
0.5
--
--
0.5
ns
C
L
= 20pF
t
skew++
Within-Device Skew
(2,4)
--
--
0.3
--
--
0.3
--
--
0.3
ns
C
L
= 20pF
t
skew
Within-Device Skew
(3,4)
--
--
0.3
--
--
0.3
--
--
0.3
ns
C
L
= 20pF
t
r
Rise
0.8V to 2.0V
0.3
--
1.5
0.3
--
1.5
0.3
--
1.5
ns
C
L
= 20pF
t
f
Fall Time
0.8V to 2.0V
0.3
--
1.5
0.3
--
1.5
0.3
--
1.5
ns
C
L
= 20pF
t
PW
Output Pulse Width
ns
C
L
= 20pF
66MHz @ 2.0V
5.5
--
--
5.5
--
--
5.5
--
--
66MHz @ 0.8V
5.5
--
--
5.5
--
--
5.5
--
--
60MHz @ 2.0V
6.0
--
--
6.0
--
--
6.0
--
--
60MHz @ 0.8V
6.0
--
--
6.0
--
--
6.0
--
--
t
Stability
Clock Stability
(7)
--
--
75
--
--
75
--
--
75
ps
C
L
= 20pF
f
MAX
Maximum Input Frequency
(5,6)
160
--
--
160
--
--
160
--
--
MHz
C
L
= 20pF
AC ELECTRICAL CHARACTERISTICS
NOTES:
1. Device-to-Device Skew considering HIGH-to-HIGH or LOW-to-LOW transitions at common V
CC
level.
2. Within-Device Skew considering HIGH-to-HIGH transitions at common V
CC
level.
3. Within-Device Skew considering LOW-to-LOW transitions at common V
CC
level.
4. All skew parameters are guaranteed but not tested.
5. Frequency at which output levels will meet a 0.8V to 2.0V minimum swing.
6. The f
MAX
value is specified as the minimum guaranteed maximum frequency. Actual operational maximum frequency may be greater.
7. Clock stability is the period variation between two successive rising edges.
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