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Micrel, Inc.
3.3V DIFFERENTIAL LVPECL-to-LVTTL TRANSLATOR
ECL ProTM SY100EPT21L
ECL ProTM SY100EPT21L
FEATURES
Guaranteed over the industrial temperature range: -40C to +85C Pin-for-pin; plug-in replacement to MC100EPT21D/DT 3.3V power supply 1.9ns typical propagation delay 275MHz fMAX (Clock) Differential LVPECL inputs 24mA LVTTL output Flow-through pinout Q output will default LOW with inputs open VBB output Available in 8-pin MSOP and SOIC packages
ECL ProTM
DESCRIPTION
The SY100EPT21L is a single, differential LVPECLto-LVTTL translator using a single +3.3V power supply. Because low voltage positive ECL (LVPECL) levels are used, only +3.3V and ground are required. The small outline 8-pin SOIC package and low-skew, single-gate design make the EPT21L ideal for applications that require the translation of a clock or data signal where minimal space, low power, and low cost are critical. VBB allows a differential, single-ended, or AC-coupled interface to the device. If used, the VBB output should be bypassed to VCC with 0.01F capacitor. Under open input conditions, the /D will be biased at a VCC/2 voltage level and the D input will be pulled to ground. This condition will force the Q output low to provide added stability. The 100EPT is compatible with positive ECL 100K logic levels. For applications that require the smallest footprint, consider the SY89321L in an ultra-small (2mm x 2mm) 8-pin MLFTM package. All support documentation can be found on Micrel's web site at: www.micrel.com.
APPLICATIONS
ASIC/FPGA interface Legacy interface Precision differential-to-general purpose, singleended translation
CROSS REFERENCE TABLE
Micrel SY100EPT21LZI SY100EPT21LZITR SY100EPT21LKI SY100EPT21LKITR ON Semiconductor MC100EPT21D MC100EPT21DR2 MC100EPT21DT MC100EPT21DTR2
ECL Pro is a trademark of Micrel, Inc. MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc. M9999-120505 hbwhelp@micrel.com or (408) 955-1690
Rev.: E Amendment: /0
1
Issue Date: December 2005
Micrel, Inc.
ECL ProTM SY100EPT21L
PACKAGE/ORDERING INFORMATION
Ordering Information(1)
NC 1 D2
LVPECL LVTTL
8 VCC 7Q 6 NC 5 GND
Part Number SY100EPT21LZC SY100EPT21LZCTR(2) SY100EPT21LKC SY100EPT21LKCTR(2) SY100EPT21LZI SY100EPT21LZITR(2) SY100EPT21LKI SY100EPT21LKITR(2) SY100EPT21LZG(3) SY100EPT21LZGTR(2, 3) SY100EPT21LKG(3) SY100EPT21LKGTR(2, 3)
Package Type Z8-1 Z8-1 K8-1 K8-1 Z8-1 Z8-1 K8-1 K8-1 Z8-1 Z8-1 K8-1 K8-1
Operating Range Commercial Commercial Commercial Commercial Industrial Industrial Industrial Industrial Industrial Industrial Industrial Industrial
Package Marking XEP21L XEP21L XP21 XP21 XEP21L XEP21L XP21 XP21 XEP21L with Pb-Free bar-line indicator XEP21L with Pb-Free bar-line indicator XP21 with Pb-Free bar-line indicator XP21 with Pb-Free bar-line indicator
Lead Finish Sn-Pb Sn-Pb Sn-Pb Sn-Pb Sn-Pb Sn-Pb Sn-Pb Sn-Pb Pb-Free NiPdAu Pb-Free NiPdAu Pb-Free NiPdAu Pb-Free NiPdAu
/D 3 VBB 4
8-Pin SOIC (Z8-1) 8-Pin MSOP (K8-1)
Notes: 1. Contact factory for die availability. Dice are guaranteed at TA = 25C, DC Electricals only. 2. Tape and Reel. 3. Pb-Free package is recommended for new designs.
PIN DESCRIPTION
Pin Number 1 2, 3 4 5 6 7 8 Pin Name NC D, /D VBB GND NC Q VCC Pin Function No Connect. Differential LVPECL Input Pair. Output Reference Voltage. Ground. No Connect. LVTTL Output. Positive Supply.
TRUTH TABLE
D L H Open /D H L Open Q L H L
M9999-120505 hbwhelp@micrel.com or (408) 955-1690
2
Micrel, Inc.
ECL ProTM SY100EPT21L
Absolute Maximum Ratings(1)
Power Supply Voltage (VCC) .......................... -0.5 to +3.8V PECL Input Voltage (VIN) .......................... 0V to VCC +0.5V Voltage Applied to Output at HIGH State (VOUT) -0.5 to VCC Current Applied to Output at LOW State (IOUT) ............................................. Twice the Rated IOL (mA) Lead Temperature (soldering, 20 sec.) ................... +260C Storage Temperature (TS) ....................... -65C to +150C
Operating Ratings(2)
Power Supply Voltage (VCC) .......................... -0.5 to +3.8V Ambient Temperature (TA) ......................... -40C to +85C Package Thermal Resistance SOIC (JA) multi-layer board ............................. 113C/W MSOP (JA) multi-layer board ........................... 124C/W
LVTTL OUTPUT DC ELECTRICAL CHARACTERISTICS
VCC = +3.3V, GND = 0V; TA = -40C to +85C; unless noted. Symbol IOS ICC VOH VOL Parameter Output Short Circuit Current Power Supply Current Output HIGH Voltage Output LOW Voltage IOH = -3.0mA(3) IOL = 24mA 2.3 0.5 Condition VOUT = 0V Min -80 14 Typ Max -275 20 Units mA mA V V
LVPECL INPUT DC ELECTRICAL CHARACTERISTICS
VCC = +3.3V, GND = 0V; TA = -40C to +85C; unless noted. Symbol IIH IIL VIH VIL VBB
Notes: 1. Permanent device damage may occur if ratings in the absolute maximum ratings section are exceeded. This is a stress rating only and functional operation is not implied for conditions other than those detailed in the operational sections of this data sheet. Exposure to absolute maximum ratings conditions for extended periods may affect device reliability. 2. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings. 3. These values are for VCC = 3.3V. Level Specifications will vary 1:1 VCC.
Parameter Input HIGH Current Input LOW Current D /D Input HIGH Voltage Input LOW Voltage Reference Output
Condition
Min
Typ
Max 150
Units A A A
0.5 -300 Note 3 Note 3 Note 3 2135 1490 1920 1980 2420 1825 2040
V V V
M9999-120505 hbwhelp@micrel.com or (408) 955-1690
3
Micrel, Inc.
ECL ProTM SY100EPT21L
AC ELECTRICAL CHARACTERISTICS
VCC = +3.0V to +3.6V, GND = 0V; TA = -40C to +85C; unless noted. Symbol tPD tskpp fMAX VCMR VPP tr, tf
Notes: 4. Part-to-part skew considering HIGH-to-HIGH transitions at common VCC level. 5. These parameters are guaranteed but not tested. 6. The fMAX value is specified as the minimum guaranteed maximum frequency. Actual operational maximum frequency may be greater. 7. 100mV input guarantees full logic at output.
Parameter Propagation Delay Part-to-Part Skew Maximum Input Frequency Common Mode Range Minimum Peak-to-Peak Input Output Rise/Fall Time (1.0V to 2.0V)
Condition CL = 20pF CL = 20pF(4, 5) CL = 20pF(6) Note 7 CL = 20pF
Min 1.5
Typ 1.9
Max 2.5 0.5
Units ns ns MHz
275 1.2 100 0.5 1.0 VCC
V mV ns
M9999-120505 hbwhelp@micrel.com or (408) 955-1690
4
Micrel, Inc.
ECL ProTM SY100EPT21L
8-PIN PLASTIC SOIC (Z8-1)
Rev. 03
M9999-120505 hbwhelp@micrel.com or (408) 955-1690
5
Micrel, Inc.
ECL ProTM SY100EPT21L
8-PIN MSOP (K8-1)
Rev. 01
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. (c) 2005 Micrel, Incorporated. M9999-120505 hbwhelp@micrel.com or (408) 955-1690
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