The SY10H350 consists of 4 translators with differential
inputs and TTL outputs. The 3-state outputs can be
disabled by applying a HIGH TTL logic level on the
common OE input.
The SY10H350 is designed to be used primarily in
systems incorporating both ECL and TTL logic operating
off a common power supply. The separate V
CC
power
pins are not connected internally and thus isolate the
noisy TTL V
CC
runs from the relatively quiet ECL V
CC
runs on the printed circuit board. The differential inputs
allow the H350 to be used as an inverting or noninverting
translator, or a differential line receiver. The H350 can
also drive CMOS with the addition of a pullup resistor.
BLOCK DIAGRAM
12
PIN CONFIGURATION
/D2
/D3
NC
D2
4
3
5
Q2 19
18
17
16 15
14
D3
13 Q3
12 /OE
11 NC
10 GND
9
Q1
8
D1
Rev.: A
7
8
14
15
9
VCCT 20
NC 1
VCCE
2
3
Top View
PLCC
J20-1
13
Q0
4
5
/D0
6
NC
7
/D1
17
18
19
D0
V
CC
(+5 VDC) = Pins 2 and 20; GND = Pin 10
PIN NAMES
Pin
D
0
– D
3
/D
0
– /D
3
Q
0
– Q
3
V
CCE
V
CCT
GND
/OE
Function
True PECL Inputs
Inverted PECL Inputs
TTL Outputs
PECL V
CC
(5.0V)
TTL V
CC
(5.0V)
Ground
Output Enable
Amendment: /1
1
Issue Date: December 2000
Micrel
SY10H350
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
V
CC
V
I
V
O
I
O
T
store
T
A
Parameter
Power Supply Voltage
PECL Input Voltage
Voltage Applied to
Output at HIGH State
Current Applied to
Output at LOW State
Storage Temperature
Operating Temperature
Value
–0.5 to +7.0
0V to V
CC
+0.5
–0.5 to +5.5
Twice the
Rated I
OL
–65 to +150
0 to +85
Unit
V
V
V
mA
°C
°C
TRUTH TABLE
/EN
L
L
L
H
Open
D
L
H
Open
X
X
/D
H
L
Open
X
X
Q
L
H
L
Z
Z
NOTE:
1. Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS
are exceeded. This is a stress rating only and functional operation is not
implied at conditions other than those detailed in the operational sections
of this data sheet. Exposure to ABSOLUTE MAXIMUM RATlNG conditions
for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
V
CC
= 4.75V to 5.25V
T
A
= 0
°
C
Symbol
I
CC
V
OH
V
OL
I
IH
I
INH
I
IL
I
INL
I
OS
I
OZH
I
OZL
V
CMR
V
PP
V
IH
V
IL
Parameter
Power Supply Current
Output HIGH Voltage
Output LOW Voltage
Input HIGH Current (Pin 12)
Reverse Current Others
Input LOW Current (Pin 12)
Forward Current Others
Output Short Circuit Current
Output Disable Current HIGH
Output Disable Current LOW
Common Mode Range
Minimum Peak-to-Peak
Input
(1)
Input HIGH Voltage (Pin 12)
Input LOW Voltage (Pin 12)
TTL
ECL
Min.
—
—
2.7
—
—
—
—
—
–60
—
–50
2.8
200
2.0
—
Max.
20
12
—
0.5
20
50
–0.6
50
–150
50
+50
V
CC
—
—
0.8
Min.
—
—
2.7
—
—
—
—
—
–60
—
–50
2.8
200
2.0
—
T
A
= +25
°
C
Typ.
12
12
—
—
—
—
—
—
—
—
—
—
—
—
—
Max.
20
—
—
0.5
20
50
–0.6
50
–150
50
+50
V
CC
—
—
0.8
T
A
= +85
°
C
Min.
—
—
2.7
—
—
—
—
—
–60
—
–50
2.8
200
2.0
—
Max.
20
12
—
0.5
20
50
–0.6
50
–150
50
+50
V
CC
—
—
0.8
Unit
mA
V
V
µA
µA
mA
µA
mA
µA
µA
V
mV
V
V
V
OUT
= 0V
V
OUT
= 2.7V
V
OUT
= 0.5
Condition
No output
loads
I
OH
= –3.0mA
I
OL
= 20mA
NOTES:
1. 200mV input guarantees full logic at output.
2. These values are for V
CC
= 5.0V. Level Specifications will vary 1:1 V
CC
.
2
Micrel
SY10H350
AC ELECTRICAL CHARACTERISTICS
V
CC
= 4.75V to 5.25V
T
A
= 0
°
C
Symbol
t
PLH
t
PHL
t
pdLZ
t
pdHZ
t
pdZL
t
pdZH
t
r
t
f
Parameter
Propagation Delay
D to Output Q
Output Disable Time
(1)
Output Enable Time
(1)
Output Rise/Fall Time
(1.0V to 2.0V)
Min.
1.5
2.0
2.0
0.3
Max.
5.0
8.0
8.0
1.6
Min.
1.5
2.0
2.0
0.3
T
A
= +25
°
C
Typ.
3.5
—
—
0.8
Max.
5.0
8.0
8.0
1.6
T
A
= +85
°
C
Min.
1.5
2.0
2.0
0.3
Max.
5.0
8.0
8.0
1.6
Unit
ns
ns
ns
ns
Condition
C
L
= 50pF
C
L
= 50pF
C
L
= 50pF
C
L
= 50pF
NOTES:
1. Guaranteed, but not tested.
SWITCHING WAVEFORMS
/OE
/OE
1.5V
1.5V
1.5V
T
PZL
V
OUT
1.5V
V
OL
0.3V
T
PLZ
1.5V
T
PZH
T
PHZ
V
OH
V
OUT
1.5V
0.3V
Figure 1. 3-State Output Low Enable and Disable Times
Figure 2. 3-State Output High Enable and Disable Times
+7.0V
Open
1ns/V (typical)
1ns/V (typical)
+3.0V
90%
INPUT
+1.5V
10%
0V
t
PLH
t
PHL
80%
t
PHL
t
PLH
T
PZL
, T
PLZ
D.U.T
50Ω
All Other
50pF
50Ω
COMPLEMENT
TRUE
50%
20%
t
THL
Includes jig and probe capacitance
t
TLH
Figure 3. Test Load
*Application Note: Pin 12 is an /OE and the 10H350 is disabled when
/OE is at V
IH
or higher.
Figure 4. Propagation Delay and Transition Times
PRODUCT ORDERING CODE
Ordering
Code
SY10H350JC
SY10H350JCTR
Package
Type
J20-1
J20-1
Operating
Range
Commercial
Commercial
V
CC
Range
(V)
+4.75 to +5.25
+4.75 to +5.25
3
Micrel
SY10H350
20 LEAD PLASTIC LEADED CHIP CARRIER (J20-1)
Rev. 00
MICREL-SYNERGY
TEL
3250 SCOTT BOULEVARD SANTA CLARA CA 95054
FAX
USA
+ 1 (408) 980-9191
+ 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.
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