MICREL SY100EPT23L Datasheet
3.3V DUAL DIFFERENTIAL
LVPECL-to-LVTTL
TRANSLATOR
SY100EPT23L
FEATURES
■ 3.3V power supply
■ 1.9ns typical propagation delay
■ Maximum frequency > 275MHz
■ Differential LVPECL inputs
■ 24mA LVTTL outputs
■ Flow-through pinouts
■ Internal input resistors: pulldown on D, pulldown
and pullup on /D
■ Q output will default LOW with inputs open or at
Ground
■ Available in 8-pin MSOP and SOIC packages
PIN CONFIGURATION/BLOCK DIAGRAM
/D0
/D1
D1
1D0
2
LVPECL
3
4
LVTTL
8V
CC
Q0
7
6
Q1
GND
5
DESCRIPTION
The SY100EPT23L is a dual differential LVPECL-toLVTTL translator. Because LVPECL (Low Voltage Positive
ECL) levels are used, only +3.3V and ground are required.
The tiny 8-pin MSOP and dual-gate design of the EPT23L
makes it ideal for applications which require the
translation of a clock and data signal.
The EPT23L is available in only the ECL 100K
standard. Since there are no LVPECL outputs or an
external VBB reference, the EPT23L does not require
both ECL standard versions. The inputs can accept 10K
voltage levels and any standard differential LVPECL input
referenced from a VCC of +3.3V
PIN NAMES
Pin Function
Q0, Q1 LVTTL Outputs
D0, /D0, D1, /D1 Differential LVPECL Inputs
V
CC
GND Ground
Positive Supply
(Available in 8-pin SOIC and 8-pin MSOP)
1
Rev.: A Amendment: 1
Issue Date:
July 2000
Micrel
SY100EPT23L
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol Paramter Value Unit
V
CC
V
I
V
O
I
O
T
store
T
A
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.
Power Supply Voltage –0.5 to +3.8 V
PECL Input Voltage 0V to VCC+0.5 V
Voltage Applied to –0.5 to V
Output at HIGH State
CC
V
Current Applied to Twice the mA
Output at LOW State Rated I
OL
Storage Temperature –65 to +150 °C
Operating Temperature –40 to +85 °C
LVTTL DC ELECTRICAL CHARACTERISTICS
VCC = +3.3V ±5%
TRUTH TABLE
D/D Q
LH L
HL H
Open Open L
TA = –40°CTA = 0°CTA = +25°CTA = +85°C
Symbol Parameter Min. Max. Min. Max. Min. Max. Min. Max. Unit Condition
V
OH
V
OL
I
CC
I
OS
Output HIGH Voltage 2.0 — 2.0 — 2.0 — 2.0 — V IOH = –3.0mA
Output LOW Voltage — 0.5 — 0.5 — 0.5 — 0.5 V IOL = 24mA
Power Supply Current — 30 — 30 — 30 — 30 mA
Output Short Circuit Current –80 –240 –80 –240 –80 –240 –80 –240 mA V
OUT
= 0V
LVPECL DC ELECTRICAL CHARACTERISTICS
VCC = +3.3V ±5%
TA = –40°CTA = 0°CTA = +25°CTA = +85°C
Symbol Parameter Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit
I
IH
I
IL
V
CMR
V
PP
V
IH
V
IL
NOTES:
1. 200mV input guarantees full logic at output.
2. These values are for VCC = 3.3V. Level Specifications will vary 1:1 with VCC.
Input HIGH Current — — 150 — — 150 — — 150 — — 150 µA
Input LOW Current 0.5 — — 0.5 — — 0.5 — — 0.5 — — µA
Common Mode Range 1.5 — V
1.5 — V
CC
1.5 — V
CC
1.5 — V
CC
CC
Minimum Peak-to-Peak
(1)
Input
Input HIGH Voltage
Input LOW Voltage
(2)
200 — — 200 — — 200 — — 200 — — mV
(2)
2070 — 2420 2130 — 2460 2135 — 2490 2130 — 2565 mV
1350 — 1825 1350 — 1825 1350 — 1825 1350 — 1825 mV
V
2
Micrel
SY100EPT23L
AC ELECTRICAL CHARACTERISTICS
VCC = +3.3V ±5%
TA = –40°CTA = 0°CTA = +25°CTA = +85°C
Symbol Parameter Min. Max. Min. Max. Min. Max. Min. Max. Unit Condition
t
PLH
t
PHL
t
skpp
t
skew++
t
skew– –
t
r
t
f
f
MAX
NOTES:
1. Device-to-Device Skew considering HIGH-to-HIGH transitions at common VCC level.
2. Within-Device Skew considering HIGH-to-HIGH transitions at common VCC level.
3. Within-Device Skew considering LOW-to-LOW transitions at common VCC level.
4. All skew parameters are guaranteed but not tested.
5. Frequency at which guaranteed for functionality. VOH and VOL levels are guaranteed at DC only.
6. The f
Propagation Delay 1.5 2.5 1.5 2.5 1.5 2.5 1.5 2.5 ns CL = 20pF
Part-to-Part Skew
Within-Device Skew
Within-Device Skew
(1,4)
(2,4)
(3,4)
— 0.5 — 0.5 — 0.5 — 0.5 ns CL = 20pF
— 0.3 — 0.3 — 0.3 — 0.3 ns CL = 20pF
— 0.3 — 0.3 — 0.3 — 0.3 ns CL = 20pF
Output Rise/Fall Time 0.5 1.0 0.5 1.0 0.5 1.0 0.5 1.0 ns CL = 20pF
1.0V to 2.0V
Maximum Input Frequency
value is specified as the minimum guaranteed maximum frequency. Actual operational maximum frequency may be greater.
MAX
(5,6)
275 — 275 — 275 — 275 — MHz CL = 20pF
PRODUCT ORDERING CODE
Ordering Package Operating VCC Range
Code Type Range (V)
SY100EPT23LZC Z8-1 Commercial +3.3 ±5%
SY100EPT23LZCTR Z8-1 Commercial +3.3 ±5%
SY100EPT23LKC K8-1 Commercial +3.3 ±5%
SY100EPT23LKCTR K8-1 Commercial +3.3 ±5%
3
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