Micrel, Inc. PECL-to-TTL TRANSLATOR DESCRIPTION FEATURES ■ ■ ■ ■ 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 VCC power pins are not connected internally and thus isolate the noisy TTL VCC runs from the relatively quiet ECL VCC 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. Single 5V power supply Propagation delay, 3.5ns typical Fully compatible with MC10H350 Available in 20-pin PLCC package BLOCK DIAGRAM PIN NAMES Pin 12 4 3 5 7 9 8 14 SY10H350 SY10H350 Function D0 – D3 True PECL Inputs /D0 – /D3 Inverted PECL Inputs Q0 – Q 3 TTL Outputs VCCE PECL VCC (5.0V) VCCT TTL VCC (5.0V) GND Ground /OE Output Enable 13 15 17 18 19 VCC (+5 VDC) = Pins 2 and 20; GND = Pin 10 M9999-032906 [email protected] or (408) 955-1690 Rev.: B 1 Amendment: /0 Issue Date: March 2006 Micrel, Inc. SY10H350 18 17 16 15 14 Q2 19 VCCT 20 Top View PLCC J20-1 NC 1 VCCE 2 Q0 3 Ordering Information(1) D3 /D3 NC /D2 D2 PACKAGE/ORDERING INFORMATION Part Number Package Type Operating Range Package Marking Lead Finish 13 Q3 SY10H350JC J20-1 Commercial SY10H350JC Sn-Pb 12 /OE SY10H350JCTR(2) J20-1 Commercial SY10H350JC Sn-Pb 11 NC SY10H350JZ(3) J20-1 Commercial SY10H350JZ with Pb-Free bar-line indicator Matte-Sn SY10H350JZTR(2, 3) J20-1 Commercial SY10H350JZ with Pb-Free bar-line indicator Matte-Sn 10 GND 9 4 5 6 7 8 D0 /D0 NC /D1 D1 20-Pin PLCC (J20-1) M9999-032906 [email protected] or (408) 955-1690 Q1 Notes: 1. Contact factory for die availability. Dice are guaranteed at TA = 25°C, DC Electricals only. 2. Tape and Reel. 3. Pb-Free package is recommended for new designs. 2 Micrel, Inc. SY10H350 ABSOLUTE MAXIMUM RATINGS(1) Symbol TRUTH TABLE Value Unit /EN D /D Q –0.5 to +7.0 V L L H L 0V to VCC+0.5 V L H L H L Open Open L H X X Z Open X X Z Parameter VCC Power Supply Voltage VI PECL Input Voltage VO Voltage Applied to Output at HIGH State –0.5 to +5.5 V IO Current Applied to Output at LOW State Twice the Rated IOL mA TLEAD Lead Temperature (soldering, 20sec.) +260 °C Tstore Storage Temperature –65 to +150 °C TA Operating Temperature 0 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. DC ELECTRICAL CHARACTERISTICS VCC = 4.75V to 5.25V TA = 0°C Symbol Parameter TTL ECL TA = +25°C TA = +85°C Min. Max. Min. Typ. Max. Min. Max. Unit Condition — — 20 12 — — 12 12 20 — — — 20 12 mA No output loads ICC Power Supply Current VOH Output HIGH Voltage 2.7 — 2.7 — — 2.7 — V IOH = –3.0mA VOL Output LOW Voltage — 0.5 — — 0.5 — 0.5 V IOL = 20mA IIH IINH Input HIGH Current (Pin 12) Reverse Current Others — — 20 50 — — — — 20 50 — — 20 50 µA µA IIL IINL Input LOW Current (Pin 12) Forward Current Others — — –0.6 50 — — — — –0.6 50 — — –0.6 50 mA µA IOS Output Short Circuit Current –60 –150 –60 — –150 –60 –150 mA VOUT = 0V IOZH Output Disable Current HIGH — 50 — — 50 — 50 µA VOUT = 2.7V IOZL Output Disable Current LOW –50 +50 –50 — +50 –50 +50 µA VOUT = 0.5 VCMR Common Mode Range 2.8 VCC 2.8 — VCC 2.8 VCC V VPP Minimum Peak-to-Peak Input(1) 200 — 200 — — 200 — mV VIH Input HIGH Voltage (Pin 12) 2.0 — 2.0 — — 2.0 — V VIL Input LOW Voltage (Pin 12) — 0.8 — — 0.8 — 0.8 V Notes: 1. 200mV input guarantees full logic at output. 2. These values are for VCC = 5.0V. Level Specifications will vary 1:1 VCC. M9999-032906 [email protected] or (408) 955-1690 3 Micrel, Inc. SY10H350 AC ELECTRICAL CHARACTERISTICS VCC = 4.75V to 5.25V TA = 0°C Symbol Parameter TA = +25°C TA = +85°C Min. Max. Min. Typ. Max. Min. Max. Unit Condition tPLH tPHL Propagation Delay D to Output Q 1.5 5.0 1.5 3.5 5.0 1.5 5.0 ns CL = 50pF tpdLZ tpdHZ Output Disable Time(1) 2.0 8.0 2.0 — 8.0 2.0 8.0 ns CL = 50pF tpdZL tpdZH Output Enable Time(1) 2.0 8.0 2.0 — 8.0 2.0 8.0 ns CL = 50pF tr tf Output Rise/Fall Time (1.0V to 2.0V) 0.3 1.6 0.3 0.8 1.6 0.3 1.6 ns CL = 50pF Notes: 1. Guaranteed, but not tested. SWITCHING WAVEFORMS /OE /OE 1.5V 1.5V 1.5V TPZL 1.5V TPLZ TPZH VOUT TPHZ VOH 1.5V VOL 1.5V VOUT 0.3V 0.3V Figure 1. 3-State Output Low Enable and Disable Times +7.0V Figure 2. 3-State Output High Enable and Disable Times Open 1ns/V (typical) TPZL, TPLZ 1ns/V (typical) +3.0V All Other 90% INPUT +1.5V 50Ω D.U.T 10% 0V tPHL tPLH 50pF 50Ω COMPLEMENT 80% tPHL tPLH 50% 20% TRUE tTLH Includes jig and probe capacitance Figure 4. Propagation Delay and Transition Times Figure 3. Test Load *Application Note: Pin 12 is an /OE and the 10H350 is disabled when /OE is at VIH or higher. M9999-032906 [email protected] or (408) 955-1690 tTHL 4 Micrel, Inc. SY10H350 20-PIN PLASTIC LEADED CHIP CARRIER (J20-1) Rev. 00 MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 TEL + 1 (408) 944-0800 FAX + 1 (408) 474-1000 WEB USA 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. © 2006 Micrel, Incorporated. M9999-032906 [email protected] or (408) 955-1690 5