3.3V DUAL DIFFERENTIAL LVPECL-to-LVTTL TRANSLATOR FEATURES SY100EPT23L DESCRIPTION ■ ■ ■ ■ ■ ■ ■ 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 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 CONFIGURATION/BLOCK DIAGRAM PIN NAMES Pin D0 1 Function 8 VCC Q0, Q1 LVTTL Outputs 7 Q0 D0, /D0, D1, /D1 Differential LVPECL Inputs /D1 3 6 Q1 VCC Positive Supply D1 4 5 GND GND Ground /D0 2 LVPECL LVTTL (Available in 8-pin SOIC and 8-pin MSOP) Rev.: A 1 Amendment: 1 Issue Date: July 2000 Micrel SY100EPT23L ABSOLUTE MAXIMUM RATINGS(1) Symbol TRUTH TABLE Value Unit D /D Q –0.5 to +3.8 V L H L 0V to VCC+0.5 V H L H Open Open L Paramter VCC Power Supply Voltage VI PECL Input Voltage VO Voltage Applied to Output at HIGH State –0.5 to VCC V IO Current Applied to Output at LOW State Twice the Rated IOL mA Tstore Storage Temperature –65 to +150 °C TA Operating Temperature –40 to +85 °C 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. LVTTL DC ELECTRICAL CHARACTERISTICS VCC = +3.3V ±5% TA = –40°C Symbol Parameter TA = 0°C TA = +25°C TA = +85°C Min. Max. Min. Max. Min. Max. Min. Max. Unit Condition VOH Output HIGH Voltage 2.0 — 2.0 — 2.0 — 2.0 — V IOH = –3.0mA VOL Output LOW Voltage — 0.5 — 0.5 — 0.5 — 0.5 V IOL = 24mA ICC Power Supply Current — 30 — 30 — 30 — 30 mA IOS Output Short Circuit Current –80 –240 –80 –240 –80 –240 –80 –240 mA VOUT = 0V LVPECL DC ELECTRICAL CHARACTERISTICS VCC = +3.3V ±5% TA = –40°C Symbol Parameter TA = 0°C TA = +25°C TA = +85°C Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit IIH Input HIGH Current — — 150 — — 150 — — 150 — — 150 µA IIL Input LOW Current 0.5 — — 0.5 — — 0.5 — — 0.5 — — µA VCMR Common Mode Range 1.5 — VCC 1.5 — VCC 1.5 — VCC 1.5 — VCC V VPP Minimum Peak-to-Peak Input(1) VIH VIL 200 — — 200 — — 200 — — 200 — — mV Input HIGH Voltage(2) 2070 — 2420 2130 — 2460 2135 — 2490 2130 — 2565 mV Input LOW Voltage(2) 1350 — 1825 1350 — 1825 1350 — 1825 1350 — 1825 mV 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. 2 Micrel SY100EPT23L AC ELECTRICAL CHARACTERISTICS VCC = +3.3V ±5% TA = –40°C Symbol Parameter TA = 0°C TA = +25°C TA = +85°C Min. Max. Min. Max. Min. Max. Min. Max. Unit Condition tPLH tPHL Propagation Delay 1.5 2.5 1.5 2.5 1.5 2.5 1.5 2.5 ns CL = 20pF tskpp Part-to-Part Skew(1,4) — 0.5 — 0.5 — 0.5 — 0.5 ns CL = 20pF Within-Device Skew(2,4) — 0.3 — 0.3 — 0.3 — 0.3 ns CL = 20pF tskew– – Within-Device Skew(3,4) — 0.3 — 0.3 — 0.3 — 0.3 ns CL = 20pF tr tf Output Rise/Fall Time 1.0V to 2.0V 0.5 1.0 0.5 1.0 0.5 1.0 0.5 1.0 ns CL = 20pF fMAX Maximum Input Frequency(5,6) 275 — 275 — 275 — 275 — MHz CL = 20pF tskew++ 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 fMAX value is specified as the minimum guaranteed maximum frequency. Actual operational maximum frequency may be greater. PRODUCT ORDERING CODE Ordering Code Package Type Operating Range VCC 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 Micrel SY100EPT23L 8 LEAD PLASTIC SOIC (Z8-1) Rev. 03 4 Micrel SY100EPT23L 8 LEAD MSOP (K8-1) Rev. 01 5 Micrel SY100EPT23L 6 Micrel SY100EPT23L 7 Micrel SY100EPT23L MICREL-SYNERGY TEL 3250 SCOTT BOULEVARD + 1 (408) 980-9191 FAX SANTA CLARA + 1 (408) 914-7878 WEB CA 95054 USA 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 8