3-BIT SCANNABLE REGISTERED BUS TRANSCEIVER Micrel, Inc. FEATURES SY10E337 SY100E337 SY10E337 SY100E337 DESCRIPTION ■ ■ ■ ■ ■ ■ ■ ■ ■ 1500ps max. clock to bus (data transmit) 1000ps max. clock to Q (data receive) Extended 100E VEE range of –4.2V to –5.5V 25Ω cutoff bus outputs 50Ω receiver outputs Scannable implementation of E336 Synchronous and asynchronous bus enables Non-inverting data path Bus outputs feature internal edge slow-down capacitors ■ Additional package ground pins ■ Fully compatible with industry standard 10KH, 100K ECL levels ■ Internal 75KΩ input pulldown resistors The SY10/100E337 are 3-bit registered bus transceivers with scan 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 designed for 50Ω. The bus outputs feature a normal logic HIGH level (VOH) and a cutoff LOW level of –2.0V and the output emitter-follower is “off”, presenting a high impedance to the bus. The bus outputs also feature edge slow-down capacitors. Both drive and receive sides feature the same logic, including a loopback path to hold data. The LOAD/HOLD function is controlled by Transmit Enable (TEN) and Receive Enable (REN) on the transmit and receive sides, respectively, with a HIGH selecting LOAD. The implementation of the E337 Receive Enable differs from that of the E336. A synchronous bus enable (SBUSEN) is provided for normal, non-scan operation. The asynchronous bus disable (ABUSDIS) disables the bus for scan mode. The SYNCEN input allows either synchronous or asynchronous re-enabling after disabling with ABUSDIS. An alternative use is asynchronous-only operation with ABUSDIS, in which case SYNCEN is tied LOW. SYNCEN is implemented as an overriding SET control to the enable flip-flop. Scan mode is selected by a logic HIGH at the SCAN input. Scan input data is shifted in through S-IN, and output data appears at the Q2 output. All registers are clocked on the rising edge of CLK. Additional lead-frame 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/100E337 ■ Available in 28-pin PLCC package PIN NAMES Pin Function A0–A2 Data Inputs A B0–B2 Data Inputs B S-IN Serial (Scan) Data Input TEN, REN LOAD/HOLD Controls SCAN Scan Control ABUSDIS Asynchronous Bus Disable SBUSEN Synchronous Bus Enable SYNCEN Synchronous Enable Control CLK Clock BUS0–BUS2 25Ω Cutoff BUS Outputs Q0–Q2 Receive Data Outputs (Q2 serves as SCAN_OUT in scan mode) VCCO VCC to Output M9999-032206 [email protected] or (408) 955-1690 Rev.: F 1 Amendment: /0 Issue Date: March 2006 SY10E337 SY100E337 Micrel, Inc. Q0 Ordering Information(1) VCCO B0 A0 ABUSDIS SBUSEN SYNCEN PACKAGE/ORDERING INFORMATION 25 24 23 22 21 20 19 18 27 17 28 TOP VIEW PLCC J28-1 1 2 3 16 15 14 13 B1 6 7 8 9 10 11 GND Q2 12 5 BUS2 4 VCCO REN CLK A1 26 A2 B2 SCAN S-IN TEN VEE Part Number Package Type Operating Range Package Marking Lead Finish SY10E337JC J28-1 Commercial SY10E337JC Sn-Pb GND BUS0 VCC Q1 SY10E337JCTR(2) J28-1 Commercial SY10E337JC Sn-Pb SY100E337JC J28-1 Commercial SY100E337JC Sn-Pb SY100E337JCTR(2) J28-1 Commercial SY100E337JC Sn-Pb VCCO BUS1 GND SY10E337JZ(3) J28-1 Commercial SY10E337JZ with Pb-Free bar-line indicator Matte-Sn SY10E337JZTR(2, 3) J28-1 Commercial SY10E337JZ with Pb-Free bar-line indicator Matte-Sn SY100E337JZ(3) J28-1 Commercial SY100E337JZ with Pb-Free bar-line indicator Matte-Sn SY100E337JZTR(2, 3) J28-1 Commercial SY100E337JZ with Pb-Free bar-line indicator Matte-Sn 28-Pin PLCC (J28-1) 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 SY10E337 SY100E337 Micrel, Inc. BLOCK DIAGRAM BUS2 D D Q Q A2 B2 Q2 SCAN-OUT BUS1 D D Q Q Q1 A1 B1 BUS0 D Q SBUSEN D Q SYNCEN SET D A0 B0 S-IN TEN REN SCAN ABUSDIS CLK M9999-032206 [email protected] or (408) 955-1690 3 Q Q0 SY10E337 SY100E337 Micrel, Inc. DC ELECTRICAL CHARACTERISTICS VEE = VEE (Min.) to VEE (Max.); VCC = VCCO = GND TA = 0°C Symbol Parameter Min. VCUT Cut-off Output Voltage IIH Input HIGH Current All Other Inputs IEE Power Supply Current 10E 100E TA = +25°C Typ. Max. Min. Typ. Max. –2.03 –2.10 — TA = +85°C Min. Typ. –2.03 –2.10 Max. Unit Condition — –2.03 V 1 µA — mA — Unit Condition ps — ps — ps — ps — ps — –2.10 — — — 150 — — 150 — — 150 — — 145 145 174 174 — — 145 125 174 174 — — 145 167 174 200 Note: 1. Applies to BUS outputs only. 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 ABUSDIS SYNCEN 450 800 500 800 — — — — 1000 1800 1500 1800 450 800 500 800 — — — — 1000 1800 1500 1800 450 800 500 800 — — — — 1000 1800 1500 1800 Set-up Time BUS SBUSEN Data, S-IN TEN, REN, SCAN 350 100 400 550 — — — — — — — — 350 100 400 550 — — — — — — — — 350 100 400 550 — — — — — — — — Hold Time BUS SBUSEN Data, S-IN TEN, REN, SCAN 350 500 350 200 — — — — — — — — 350 500 350 200 — — — — — — — — 350 500 350 200 — — — — — — — — tPW Minimum Pulse Width 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 — — — 800 1000 800 300 500 300 — — — 800 1000 800 300 500 300 — — — 800 1000 800 tPD tS tH Parameter M9999-032206 [email protected] or (408) 955-1690 4 SY10E337 SY100E337 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. © 2006 Micrel, Incorporated. M9999-032206 [email protected] or (408) 955-1690 5