QUAD CMOS-to-PECL TRANSLATOR FEATURES DESCRIPTION The SY10H352 is a quad translator for interfacing data between a CMOS logic section and the PECL section of digital systems when only a +5.0V VDC power supply is available. The SY10H352 has CMOS 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 SY10H352 can also be used with the SY10H350 to transmit and receive CMOS information differentially via balanced twisted pair lines. Single 5V power supply All VCC pins isolated on chip Differentially drive balanced lines tpd 1.3ns typical Fully compatible with Motorola MC10H352 Available in 20-pin PLCC package 8 D3 12 D2 14 COMMON 9 STROBE /Q1 Q1 /Q0 Q0 /Q3 Q3 /Q2 Q2 18 D2 D0 1 2 5 4 16 17 19 18 VCC2 7 Q2 D1 /Q3 PIN CONFIGURATION BLOCK DIAGRAM Q3 ■ ■ ■ ■ ■ ■ SY10H352 17 16 15 14 /Q2 19 13 NC VCCE 20 Q1 2 NC 3 11 VCCT 10 GND Common Strobe 9 4 5 6 7 8 Q0 /Q0 VCC1 D1 D0 VCC (+5 VDC) = Pins 6, 11, 15, 20; GND = Pin 10 12 D3 Top View PLCC J20-1 /Q1 1 PIN NAMES Pin Function D0 – D3 Inputs Q0 – Q3 Outputs /Q0 – /Q3 Inverted outputs VCC1 PECL VCC (5.0V) VCCE PECL VCC (5.0V) VCCT CMOS VCC (5.0V) VCC2 PECL VCC (5.0V) Common Strobe Common Strobe GND Ground Rev.: A Powered by ICminer.com Electronic-Library Service CopyRight 2003 1 Amendment: /0 Issue Date: August 2000 Micrel SY10H352 ABSOLUTE MAXIMUM RATINGS(1) Symbol Parameter VCC Power Supply Voltage IO Output Current –Continuous –Surge Tstore Storage Temperature TA Operating Temperature TRUTH TABLE Value Unit CS D Q /Q –0.5 to +7.0 V H L L H H H H L 50 100 mA H Open H L –65 to +150 °C L X L H 0 to +85 °C Open L L H Open H H L Open Open H L 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 = 0°C Symbol Parameter ECL(1) TTL(2) TA = +25°C TA = +85°C Min. Max. Min. Typ. Max. Min. Max. Unit Condition — — 45 15 — — — — 45 15 — — 45 15 mA No output loads ICC Power Supply Current IR Reverse Current (Pins 7, 8, 12, 14) — 20 — — 20 — 20 µA IINH Reverse Current, (Pin 9) — 80 — — 80 — 80 µA IF Forward Current (Pins 7, 8, 12, 14) — –0.6 — — –0.6 — –0.6 mA IINL Forward Current, (Pin 9) — –2.4 — — –2.4 — –2.4 mA VBR(in) Input Breakdown Voltage 5.5 — 5.5 — — 5.5 — V VI Input Clamp Voltage — –1.5 — — –1.5 — –1.5 V VOH Output HIGH Voltage(3) 3.98 4.16 4.02 — 4.19 4.09 4.28 V VOL Output LOW Voltage(3) 3.05 3.37 3.05 — 3.37 3.05 3.37 V VIH Input HIGH Voltage 3.15 — 3.15 — — 3.15 — V VIL Input LOW Voltage — 1.5 — — 1.5 — 1.5 V 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. Powered by ICminer.com Electronic-Library Service CopyRight 2003 5-2 IIN = –18mA Micrel SY10H352 AC ELECTRICAL CHARACTERISTICS VCC1 = VCC2 = VCCE = VCCT = 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(1) 0.4 1.9 0.4 — 2.0 0.4 2.1 ns 50Ω to VCC–2V tr tf Output Rise/Fall Time (20% to 80%) 0.4 1.9 0.4 — 2.0 0.4 2.1 ns 50Ω to VCC–2V fMAX Maximum Input Frequency(2) 150 — 150 — — 150 — MHz 50Ω to VCC–2V NOTES: 1. Propagation delay is measured on this circuit from VCC2 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) 1ns/V (typical) VCC 90% INPUT VCC/2 10% 0V tPLH COMPLEMENT tPHL 80% t PLH tPHL 50% 20% TRUE tTLH tTHL Figure 1. Propagation Delay and Transition Times PRODUCT ORDERING CODE Ordering Code Package Type Operating Range VCC Range (V) SY10H352JC J20-1 Commercial +4.75 to +5.25 SY10H352JCTR J20-1 Commercial +4.75 to +5.25 Powered by ICminer.com Electronic-Library Service CopyRight 2003 3 Micrel SY10H352 20 LEAD PLASTIC LEADED CHIP CARRIER (J20-1) Rev. 00 MICREL-SYNERGY TEL 3250 SCOTT BOULEVARD SANTA CLARA CA 95054 USA + 1 (408) 980-9191 FAX + 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. © 2000 Micrel Incorporated Powered by ICminer.com Electronic-Library Service CopyRight 2003 4