SY100S325JY

NOT RECOMMENDED FOR NEW DESIGNS LOW-POWER HEX ECL-to-TTL TRANSLATOR Micrel, Inc. DESCRIPTION FEATURES ■ Max. propagation delay of 3.7ns ■ IEE min. of –37mA ■ TTL outputs ■ Extended supply voltage option: VEE = –4.2V to –5.5V ■ 25% faster than National's 325 ■ Differential inputs with built-in offset ■ Voltage and temperature compensation for improved noise immunity ■ VBB output for single-ended use ■ Internal 75KΩ input pull-down resistors ■ Function and pinout compatible with Fairchild F100K ■ Available in 28-pin PLCC package The SY100S325 are hex translators for converting 100K ECL logic levels to TTL logic levels. Inputs can be used as inverting, non-inverting or differential receivers. An internal reference voltage generator provides VBB for single-ended operation or for use in Schmitt trigger applications. All inputs have 75KΩ pull-down resistors. The outputs will go LOW when the inputs are either open or have the same potential. When used in single-ended operation, the apparent input threshold of the true inputs is 20mV to 40mV higher (positive) than the threshold of the complementary inputs. The VTTL and VEE power may be applied in either order. PIN NAMES BLOCK DIAGRAM Pin VBB D0 D0 Q0 D1 D1 Q1 D2 D2 Q2 D3 D3 Q3 D4 D4 Q4 D5 D5 Q5 M9999-051607 hbwhelp@micrel.com or (408) 955-1690 SY100S325 SY100S325 Function D0–D5 Data Inputs D0–D5 Inverting Data Inputs Q0–Q5 Data Outputs VEES VEE Substrate VTTL TTL VCC Power Supply VCCA VCCO for ECL Outputs Rev.: I 1 Amendment: /0 Issue Date: May 2007 Micrel, Inc. SY100S325 Ordering Information D5 D4 VEES D5 Q4 Q5 Q3 PACKAGE/ORDERING INFORMATION 25 24 23 22 21 20 19 VTTL 26 18 VTTL VCC 27 17 28 16 VCC VCC Q2 Q1 1 Top View PLCC J28-1 2 15 14 3 13 8 9 VEE VBB D2 Package Type Operating Range Package Marking Lead Finish SY100S325JC J28-1 Commercial SY100S325JC Sn-Pb SY100S325JCTR(1) J28-1 Commercial SY100S325JC Sn-Pb SY100S325JY(2) J28-1 Industrial SY100S325JY with Pb-Free bar-line indicator Matte-Tin SY100S325JYTR(1, 2) J28-1 Industrial SY100S325JY with Pb-Free bar-line indicator Matte-Tin 10 11 D2 7 D1 D1 Q0 D0 6 VEES 12 5 D0 4 D4 D3 D3 VEES Part Number Notes: 1. Tape and Reel. 2. Pb-Free package is recommended for new designs. 28-Pin PLCC (J28-1) M9999-051607 hbwhelp@micrel.com or (408) 955-1690 2 Micrel, Inc. SY100S325 DC ELECTRICAL CHARACTERISTICS VEE = –4.2V to –4.8V unless otherwise specified, VCC =VCCA = GND, VTTL = +4.5V to +5.5V Symbol Parameter Min. Typ. Max. Unit Condition VOH Output HIGH Voltage 2.5 — — V IOH = –2.0mA VIN = VIH (Max.) VOL Output LOW Voltage — — 0.5 V IOL = 24mA VIN = VIL (Min.) VDIFF Input Voltage Differential 150 — — mV VCM Common Mode Voltage — — 1.0 V Permissible ±VCM with Respect to VBB IIH Input HIGH Current — — 350 µA VIN = VIH (Max.), D0–D5 = VBB, D0–D5 = VIL (Min.) IIL Input LOW Current 0.5 — — µA VIN = VIH (Min.), D0–D5 = VBB IOS Output Short Circuit Current –150 –80 –60 mA VOUT = GND IEE VEE Power Supply Current –37 –24 –17 mA D0–D5 = VBB ITTL VTTL Power Supply Current — 42 65 mA D0–D5 = VBB VBB Ouptut Reference Voltage –1380 mV IVBB = –2.1mA VIH Single-Ended Input HIGH Voltage –1165 — –880 mV Guaranteed HIGH Signal for All Inputs (with One Tied to VBB) VIL Single-Ended Input LOW Voltage –1810 — –1475 mV Guaranteed LOW Signal for All Inputs (with One Tied to VBB) –1320 –1260 Required for Full Output Swing AC ELECTRICAL CHARACTERISTICS VEE = –4.2V to –5.5V unless otherwise specified, VCC = VCCA = GND, VTTL = +4.5V to +5.5V Symbol Parameter Min. Typ. Max. Unit tPLH tPHL Propagation Delay Data to Output 900 2100 2900 ps CL = 15pF, Figure 2 tPLH tPHL Propagation Delay Data to Output 900 3100 3700 ps CL = 50pF, Figure 2 M9999-051607 hbwhelp@micrel.com or (408) 955-1690 3 Condition Micrel, Inc. SY100S325 SWITCHING WAVEFORM 0.7 ± 0.1 ns 0.7 ± 0.1 ns –0.95V 80% 50% INPUT 20% tPLH –1.69V tPHL ATTENUATED OUTPUT 50% Figure 1. Propagation Delay Note: VEE = –4.2V to –5.5V unless otherwise specified, VCC = VCCA = GND TEST CIRCUITS VTTL VBB 0.1µF OPEN 450Ω PULSE GENERATOR CL VCC VEE L1 SCOPE CHAN A RT Figure 2. AC Test Circuit for 15pF Loading Notes: VCC = 0V, VEE = –4.5V, VTTL = +5V L1 and L2 = equal length 50Ω impedance lines RT = 50Ω terminator internal to scope Decoupling 0.1µF from GND to VCC, VEE and VTTL All unused outputs are loaded with 500Ω to GND CL = Fixture and stray capacitance = 3pF M9999-051607 hbwhelp@micrel.com or (408) 955-1690 4 L2 SCOPE CHAN B RT Micrel, Inc. SY100S325 28-PIN PLCC (J28-1) Rev. 03 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. M9999-051607 hbwhelp@micrel.com or (408) 955-1690 5