DUAL SUPPLY OCTAL ECL-TO-TTL ClockWorks™ SY100HA643 DESCRIPTION FEATURES Dual supply Reset/Enable Multiple TTL and ECL power/ground pins Fully compatible with Motorola MC100H643 Higher performance than H643 versions Industrial temperature availability Available in 28-pin PLCC package PIN CONFIGURATION Q4 BLOCK DIAGRAM Q7 ■ ■ ■ ■ ■ ■ ■ The SY100HA643 is an enhanced dual supply, low skew translating 1:8 clock driver. Devices in the Micrel-Synergy H600 translators series utilize the 28-lead PLCC for optimal power pinning, signal flow through and electrical performance. The dual-supply HA643 is similar to the H641, which is a single-supply 1:9 version of the same function, with higher performance than the H643 versions. The device features a 48mA TTL output stage, with AC performance specified into a 20pF load capacitance. A Latch is provided on-chip. When LEN is LOW (or left open, in which case it is pulled LOW by the internal pulldowns) the latch is transparent. A HIGH on the enable pin (EN) forces all outputs LOW. The 100HA643 is compatible with 100K ECL logic levels. Q6 OGND4 ECL/TTL version of popular ECLinPS™ E111 400ps within device skew 800ps part-to-part skew Latch Differential internal design VBB output OGND3 Q5 OVT 2 ■ ■ ■ ■ ■ ■ Q0 25 24 26 18 27 17 Q2 OVT 1 Q1 28 OGND1 Q0 3 13 4 12 SY100HA643 TOP VIEW PLCC IVT1 5 Q3 D D D VBB LEN 6 7 8 9 16 15 14 IVT2 IGND2 VCCE VCCE LEN VBB D 10 11 EN D 2 VEE VEE 1 1GND1 VEE Q1 Q2 23 22 21 20 19 Q3 OGND2 PIN NAMES TTL OUTPUTS Q Q4 EN Q5 Q6 Q7 Pin Function OGND TTL Output Ground (0V) OVTTTL Output VCC (+5.0V) IGND Internal TTL GND (0V) IVT Internal TTL VCC (+5.0V) VEE ECL VEE (-5.2/-4.5V) VCCE ECL Ground (0V) D, D Signal Input (ECL) VBB VBB Reference Output Q0 - Q7 Signal Outputs (TTL) EN Enable Input (ECL) LEN Latch Enable Input (ECL) Rev.: G 1 Amendment: /1 Issue Date: August, 1998 ClockWorks™ SY100HA643 Micrel TRUTH TABLE D LEN EN Q L L L L H L L H X X H L DC CHARACTERISTICS IVT = OVT = 5.0V ±5%; VEE = –4.2V to –5.5V; VCCE = GND TA = –40°C Symbol IEE ICCL ICCH Parameter Power Supply ECL TTL TA = 0°C TA = +25°C TA = +85°C Min. Max. Min. Max. Min. Max. Min. Max. Unit Condition — — — 58 83 73 — — — 58 83 73 — — — 58 83 73 — — — 58 83 73 mA mA mA VEE Pins Total all OVT and IVT pins VOH TTL Output HIGH Voltage 2.5 2.0 — — 2.5 2.0 — — 2.5 2.0 — — 2.5 2.0 — — V IOH = –3.0mA IOH = –15mA VOL TTL Output LOW Voltage — 0.5 — 0.5 — 0.5 — 0.5 V IOL = 48mA IOS TTL Output Short Circuit Current –80 –200 –80 –200 –80 –200 –80 –200 mA VOUT = 0V IIH ECL Input HIGH Current — 225 — 225 — 175 — 175 µA IIL ECL Input LOW Current 0.5 — 0.5 — 0.5 — 0.5 — µA VIH ECL Input HIGH Voltage — — –1165 –880 –1165 –880 –1165 –880 mV VIL ECL Input LOW Voltage — — –1810 –1475 –1810 –1475 –1810 –1475 mV VBB ECL Output Reference Voltage –1380 –1260 –1380 –1260 –1380 –1260 –1380 –1260 mV 2 ClockWorks™ SY100HA643 Micrel AC CHARACTERISTICS IVT = OVT = 5.0V ±5%; VEE = –4.2V to –5.5V ; VCCE = GND TA = –40°C Symbol IIH tskew tPW Parameter TA = +25°C TA = +85°C Min. Max. Min. Max. Min. Max. Min. Max. Unit Condition 2.3 3.1 2.3 3.1 2.3 3.1 2.3 3.1 ns CL = 20pF — 0.4 — 0.4 — 0.4 — 0.4 ns HIGH or LOW @ FOUT = 100MHz 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 ns Propagation Delay to Output D LEN EN Within-Device Skew(1) Pulse Width TA = 0°C Out(2) CL = 20pF tS Setup Time D 0.75 — 0.75 — 0.75 — 0.75 — ns tH Hold Time D 0.75 — 0.75 — 0.75 — 0.75 — ns tRR Recovery TimeLEN EN 1.25 1.25 — — 1.25 1.25 — — 1.25 1.25 — — 1.25 1.25 — — ns ns EN 1.5 1.5 — — 1.5 1.5 — — 1.5 1.5 — — 1.5 1.5 — — ns ns — 1.5 — 1.5 — 1.5 — 1.5 ns CL = 20pF 160 — 160 — 160 — 160 — MHz CL = 20pF tPW Minimum PulseLEN Width tr tf Rise / Fall times 0.8V — 2.0V fMAX Max. Input Frequency(3,4) NOTES: 1. Within-Device skew defined as identical transitions on similar paths through a device. 2. Pulse width is defined relative to 1.5V measurement points on the output waveform. 3. Frequency at which output levels will meet a 0.8V to 2.0V minimum swing. 4. The fMAX value is specified as the minimum guaranteed maximum frequency. Actual operational maximum frequency may be greater. PRODUCT ORDERING CODE Ordering Code SY100HA643JC SY100HA643JCTR Ordering Code Package Type Operating Range Package Type Operating Range J28-1 Commercial SY100HA643JI J28-1 Industrial Commercial SY100HA643JITR J28-1 Industrial J28-1 3 ClockWorks™ SY100HA643 Micrel 28 LEAD PLCC (J28-1) Rev. 03 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 4