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| QUAD TTL/NMOS-to-PECL TRANSLATOR SY10H351 FINAL FEATURES s s s s s s Single 5V power supply All VCC pins isolated on chip Differentially drive balanced lines tpd 1.3ns typical Fully compatible with ON Semiconductor MC10H351 Available in 20-pin PLCC package DESCRIPTION The SY10H351 is a quad translator for interfacing data between a saturated logic selection and the PECL section of digital systems when only a +5.0V VDC power supply is available. The SY10H351 has TTL/NMOS compatible inputs and PECL complementary open-emitter outputs that allow use as an inverting/non-inverting translator or as a differential line driver. When the common strobe input is at a low logic level, it forces all true outputs to the PECL low logic state ( +3.2V) and all inverting outputs to the PECL high logic state ( 4.1V). The SY10H351 can also be used with the SY10H350 to transmit and receive TTL/NMOS information differentially via balanced twisted pair lines. BLOCK DIAGRAM PIN CONFIGURATION VCC2 /Q3 Q2 Q3 D1 D0 7 8 1 2 5 4 16 17 19 18 D3 12 D2 14 COMMON 9 STROBE /Q1 Q1 /Q0 Q0 /Q3 Q3 /Q2 Q2 18 17 16 15 14 /Q2 19 VCCE 20 /Q1 1 Q1 NC 2 3 Top View PLCC J20-1 D2 13 NC 12 D3 11 VCCT 10 GND 9 Common Strobe 8 D0 VCC (+5 VDC) = Pins 6, 11, 15, 20; GND = Pin 10 4 Q0 5 /Q0 6 VCC1 7 D1 PIN NAMES Pin D0 - D3 Q0 - Q3 /Q0 - /Q3 VCC1 VCCE VCCT VCC2 Common Strobe GND Inputs Outputs Inverted outputs PECL VCC (5.0V) PECL VCC (5.0V) TTL VCC (5.0V) PECL VCC (5.0V) Common Strobe Ground Rev.: A Amendment: /1 Function 1 Issue Date: August 2000 Micrel SY10H351 ABSOLUTE MAXIMUM RATINGS(1) Symbol VCC IO Parameter Power Supply Voltage Output Current -Continuous -Surge Storage Temperature Operating Temperature Value -0.5 to +7.0 50 100 -65 to +150 0 to +85 Unit V mA C C TRUTH TABLE CS H H H L Open Open Open D L H Open X L H Open Q L H H L L H H /Q H L L H H L L Tstore TA 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 VCC1 = VCC2 = VCCE = VCCT = 4.75V to 5.25V TA = 0C Symbol ICC IR IINH IF IINL VBR(in) VI VOH VOL VIH VIL Parameter Power Supply Current ECL(1) TTL(2) Reverse Current (Pins 7, 8, 12, 14) Reverse Current, (Pin 9) Forward Current (Pins 7, 8, 12, 14) Forward Current, (Pin 9) Input Breakdown Voltage Input Clamp Voltage Output HIGH Output LOW Voltage(3) Voltage(3) Min. -- -- -- -- -- -- 5.5 -- 3.98 3.05 2.0 -- Max. 45 15 20 80 -0.6 -2.4 -- -1.5 4.16 3.37 -- 0.8 Min. -- -- -- -- -- -- 5.5 -- 4.02 3.05 2.0 -- TA = +25C Typ. -- -- -- -- -- -- -- -- -- -- -- -- Max. 45 15 20 80 -0.6 -2.4 -- -1.5 4.19 3.37 -- 0.8 TA = +85C Min. -- -- -- -- -- -- 5.5 -- 4.08 3.05 2.0 -- Max. 45 15 20 80 -0.6 -2.4 -- -1.5 4.27 3.37 -- 0.8 Unit mA A A mA mA V V V V V V IIN = -18mA Condition No output loads Input HIGH Voltage Input LOW Voltage NOTES: 1. Total ICC at VCC1, VCC2 and VCCE. 2. ICC at ICCT. 3. These values are for VCC = 5.0V. Level Specifications will vary 1:1 VCC. 2 Micrel SY10H351 AC ELECTRICAL CHARACTERISTICS VCC1 = VCC2 = VCCE = VCCT = 4.75V to 5.25V TA = 0C Symbol tPLH tPHL tr tf fMAX Parameter Propagation Delay(1) Min. 0.4 0.4 150 Max. 2.2 1.9 -- Min. 0.4 0.4 150 TA = +25C Typ. -- -- -- Max. 2.2 2.0 -- TA = +85C Min. 0.4 0.4 150 Max. 2.1 2.1 -- Unit ns ns MHz Condition 50 to VCC-2V 50 to VCC-2V 50 to VCC-2V Output Rise/Fall Time (20% to 80%) Maximum Input Frequency(2) NOTES: 1. Propagation delay is measured on this circuit from +1.5V on the input waveform to the 50% point on the output waveform. 2. These parameters are guaranteed but not tested. SWITCHING WAVEFORM 1ns/V (typical) 90% INPUT 1ns/V (typical) +3.0V +1.5V 10% 0V tPLH tPHL 80% tPHL tPLH COMPLEMENT TRUE 50% 20% tTHL tTLH Figure 1. Propagation Delay and Transition Times PRODUCT ORDERING CODE Ordering Code SY10H351JC SY10H351JCTR 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 SY10H351 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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