FEATURES 25Ω cutoff bus output Extended 100E VEE range of –4.2V to –5.5V 50Ω receiver output Transmit and receive registers 1500ps max. clock to bus 1000ps max. clock to Q Internal edge slow-down capacitors on bus outputs Additional package ground pins Fully compatible with industry standard 10KH, 100K ECL levels ■ Internal 75KΩ input pulldown resistors The SY10/100E336 offer three bus transceivers with both transmit and receive registers and are designed for use in new, high-performance ECL systems. The bus outputs (BUS0 - BUS2) are designed to drive a 25Ω bus. The receive outputs (Q0 – Q2) are specified for 50Ω. The bus outputs feature a normal logic HIGH level (VOH) and a cutoff LOW level when at a logic LOW. At cutoff, the outputs go to –2.0V and the output emitter-follower is “off”, presenting a high impedance to the bus. The bus outputs have edge slow-down capacitors. The Transmit Enable pins (TEN) determine whether current data is held in the transmit register or new data is loaded from the A/B inputs. A logic LOW on both of the bus enable inputs (BUSEN), when clocked through the register, disables the bus outputs to –2.0V. The receiver section clocks bus data into the receive registers after gating with the Receive Enable (RXEN) input. All registers are clocked by rising edge of CLK1 or CLK2 (or both). Additional grounding is provided through the ground pins (GND) which should be connected to 0V. The GND pins are not electrically connected to the chip. ■ Fully compatible with Motorola MC10E/100E336 ■ Available in 28-pin PLCC package BLOCK DIAGRAM 0 D Q 1 25 CUTOFF PIN NAMES BUS0 D Q 50 Q0 Pin 0 A1 B1 D Q 1 25 A2 B2 Data Inputs A B0–B2 Data Inputs B TEN1, 2 Transmit Enable Inputs RXEN Receive Enable Input BUS2 BUSEN1, 2 Bus Enable Inputs Q2 CLK1, 2 Clock Inputs BUS0–BUS2 25Ω Cutoff Bus Outputs Q0–Q2 Receive Data Outputs VCCO VCC to Output BUS1 D Q 1 25 50 Q1 CUTOFF D TEN1 TEN2 Q Q 50 RXEN BUSEN1 BUSEN2 D Function A0–A2 CUTOFF D 0 SY100E336 DESCRIPTION ■ ■ ■ ■ ■ ■ ■ ■ ■ A0 B0 SY10E336 SY100E336 SY10E336 3-BIT REGISTERED BUS TRANSCEIVER Micrel, Inc. Q CLK1 CLK2 M9999-032206 [email protected] or (408) 955-1690 Rev.: G 1 Amendment: /0 Issue Date: March 2006 SY10E336 SY100E336 Micrel, Inc. PACKAGE/ORDERING INFORMATION Q2 VCCO B2 A2 NC TEN1 TEN2 Ordering Information(1) 25 24 23 22 21 20 19 BUSEN1 26 18 GND BUSEN2 27 17 BUS2 RXEN 28 VEE CLK1 1 2 CLK2 3 A0 4 TOP VIEW PLCC J28-1 15 VCC Q1 14 VCCO 13 BUS1 GND 16 7 8 A1 B1 VCCO 9 10 11 BUS0 GND Q0 6 B0 12 5 28-Pin PLCC (J28-1) Part Number Package Type Operating Range Package Marking Lead Finish SY10E336JC J28-1 Commercial SY10E336JC Sn-Pb SY10E336JCTR(2) J28-1 Commercial SY10E336JC Sn-Pb SY100E336JC J28-1 Commercial SY100E336JC Sn-Pb SY100E336JCTR(2) J28-1 Commercial SY100E336JC Sn-Pb SY10E336JZ(3) J28-1 Commercial SY10E336JZ with Pb-Free bar-line indicator Matte-Sn SY10E336JZTR(2, 3) J28-1 Commercial SY10E336JZ with Pb-Free bar-line indicator Matte-Sn SY100E336JZ(3) J28-1 Commercial SY100E336JZ with Pb-Free bar-line indicator Matte-Sn SY100E336JZTR(2, 3) J28-1 Commercial SY100E336JZ with Pb-Free bar-line indicator Matte-Sn 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. M9999-032206 [email protected] or (408) 955-1690 2 SY10E336 SY100E336 Micrel, Inc. DC ELECTRICAL CHARACTERISTICS VEE = VEE (Min.) to VEE (Max.); VCC = VCCO = GND TA = 0°C Symbol Parameter VCUT Cut-off Output Voltage IIH Input HIGH Current RXEN All Other Inputs IEE TA = +25°C Min. Typ. Max. Min. Typ. –2.03 –2.10 — TA = +85°C Max. Min. Typ. –2.03 –2.10 Max. Unit Condition — –2.03 V 1 µA — mA — Unit Condition ps — ps — ps — ps — ps — –2.10 — — — — — 225 150 — — — — 225 150 — — — — 225 150 — — 125 125 150 150 — — 125 125 150 150 — — 125 144 150 173 Power Supply Current 10E 100E Note: 1. Measured with VTT = –2.10V. AC ELECTRICAL CHARACTERISTICS VEE = VEE (Min.) to VEE (Max.); VCC = VCCO = GND TA = 0°C Symbol TA = +25°C TA = +85°C Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Propagation Delay to Output CLK to Q CLK to BUS 500 825 700 1000 1250 1800 500 825 700 1250 1000 1800 500 825 700 1250 1000 1800 Set-up Time BUS, RXEN BUSEN A, B Data TEN 150 100 300 450 –150 –200 –50 150 — — — — 150 100 300 450 –150 –200 –50 150 — — — — 150 100 300 450 –150 –200 –50 150 — — — — Hold Time BUS, RXEN BUSEN A, B Data TEN 450 500 350 200 150 200 50 –150 — — — — 450 500 350 200 150 200 50 –150 — — — — 450 500 350 200 150 200 50 –150 — — — — tPW Minimum Pulse Width, CLK 400 — — 400 — — 400 — — tr tf Rise/Fall Time 20% to 80% (Qn) 20% to 80% (BUSn Rise) 20% to 80% (BUSn Fall) 300 500 300 450 800 500 700 1000 800 300 500 300 450 800 500 700 1000 800 300 500 300 450 800 500 700 1000 800 tPD tS tH Parameter M9999-032206 [email protected] or (408) 955-1690 3 SY10E336 SY100E336 Micrel, Inc. 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. © 2005 Micrel, Incorporated. M9999-032206 [email protected] or (408) 955-1690 4