SY100S325

Micrel, Inc. NOT RECOMMENDED FOR NEW DESIGNS LOW-POWER HEX ECL-to-TTL TRANSLATOR SY100S325 SY100S325 FEATURES DESCRIPTION s Max. propagation delay of 3.7ns s IEE min. of –37mA s TTL outputs s Extended supply voltage option: VEE = –4.2V to –5.5V s 25% faster than National's 325 s Differential inputs with built-in offset s Voltage and temperature compensation for improved noise immunity s VBB output for single-ended use s Internal 75KΩ input pull-down resistors s Function and pinout compatible with Fairchild F100K s 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. BLOCK DIAGRAM D0 D0 D1 D1 D2 D2 D3 D3 D4 D4 D5 D5 VBB Q0 Q1 Q2 Q3 Q4 Q5 PIN NAMES Pin D0–D5 D0–D5 Q0–Q5 VEES VTTL VCCA Function Data Inputs Inverting Data Inputs Data Outputs VEE Substrate TTL VCC Power Supply VCCO for ECL Outputs M9999-051607 hbwhelp@micrel.com or (408) 955-1690 1 Rev.: I Amen...