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| PECL-to-TTL TRANSLATOR SY10H350 FINAL FEATURES s s s s Single 5V power supply Propagation delay, 3.5ns typical Fully compatible with Motorola MC10H350 Available in 20-pin PLCC package DESCRIPTION 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. 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 VCC (+5 VDC) = Pins 2 and 20; GND = Pin 10 PIN NAMES Pin D0 - D3 /D0 - /D3 Q0 - Q 3 VCCE VCCT GND /OE Function True PECL Inputs Inverted PECL Inputs TTL Outputs PECL VCC (5.0V) TTL VCC (5.0V) Ground Output Enable Amendment: /1 1 Issue Date: December 2000 Micrel SY10H350 ABSOLUTE MAXIMUM RATINGS(1) Symbol VCC VI VO IO Tstore TA 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 VCC+0.5 -0.5 to +5.5 Twice the Rated IOL -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 VCC = 4.75V to 5.25V TA = 0C Symbol ICC VOH VOL IIH IINH IIL IINL IOS IOZH IOZL VCMR VPP VIH VIL 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 VCC -- -- 0.8 Min. -- -- 2.7 -- -- -- -- -- -60 -- -50 2.8 200 2.0 -- TA = +25C Typ. 12 12 -- -- -- -- -- -- -- -- -- -- -- -- -- Max. 20 -- -- 0.5 20 50 -0.6 50 -150 50 +50 VCC -- -- 0.8 TA = +85C Min. -- -- 2.7 -- -- -- -- -- -60 -- -50 2.8 200 2.0 -- Max. 20 12 -- 0.5 20 50 -0.6 50 -150 50 +50 VCC -- -- 0.8 Unit mA V V A A mA A mA A A V mV V V VOUT = 0V VOUT = 2.7V VOUT = 0.5 Condition No output loads IOH = -3.0mA IOL = 20mA NOTES: 1. 200mV input guarantees full logic at output. 2. These values are for VCC = 5.0V. Level Specifications will vary 1:1 VCC. 2 Micrel SY10H350 AC ELECTRICAL CHARACTERISTICS VCC = 4.75V to 5.25V TA = 0C Symbol tPLH tPHL tpdLZ tpdHZ tpdZL tpdZH tr tf 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 TA = +25C Typ. 3.5 -- -- 0.8 Max. 5.0 8.0 8.0 1.6 TA = +85C Min. 1.5 2.0 2.0 0.3 Max. 5.0 8.0 8.0 1.6 Unit ns ns ns ns Condition CL = 50pF CL = 50pF CL = 50pF CL = 50pF NOTES: 1. Guaranteed, but not tested. SWITCHING WAVEFORMS /OE /OE 1.5V 1.5V 1.5V TPZL VOUT 1.5V VOL 0.3V TPLZ 1.5V TPZH TPHZ VOH VOUT 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 tPLH tPHL 80% tPHL tPLH TPZL, TPLZ D.U.T 50 All Other 50pF 50 COMPLEMENT TRUE 50% 20% tTHL Includes jig and probe capacitance tTLH Figure 3. Test Load *Application Note: Pin 12 is an /OE and the 10H350 is disabled when /OE is at VIH 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 VCC 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. (c) 2000 Micrel Incorporated 4 |
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