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| DUAL PARITY CHECKER/ GENERATOR FEATURES s s s s s s s s s s Max. propagation delay of 2200ps IEE min. of -70mA Industry standard 100K ECL levels Extended supply voltage option: VEE = -4.2V to -5.5V Voltage and temperature compensation for improved noise immunity Internal 75K input pull-down resistors 15% faster than Fairchild 300K Approximately 30% lower power than Fairchild 300K Function and pinout compatible with Fairchild F100K Available in 24-pin CERPACK and 28-pin PLCC packages SY100S360 DESCRIPTION The SY100S360 is a dual parity checker/generator and is designed for use in high-performance ECL systems. The inputs are segmented into two groups of nine inputs each and the parity output is at a logic LOW when an even number of inputs are at a logic HIGH. In each group, one of the nine inputs (Ia, Ib) has a shorter propagation delay and, therefore, is ideal as the expansion input for parity generation of wider data. A Compare output (C) is also provided which allows comparison of two 8-bit words. A logic LOW on the C output indicates a match. The inputs on this device have 75K pull-down resistors. PIN CONFIGURATIONS I4a I3a VEES I5a I2a I1a I0a 11 10 9 8 7 6 5 BLOCK DIAGRAM I0a I1a I2a I3a I4a I5a I6a I7a Ia C I0b I1b I2b I3b I4b I5b I6b I7b Ib Zb Za I6a I7a VEE VEES I0b I1b I2b 12 13 14 15 16 17 18 Top View PLCC J28-1 4 3 2 1 28 27 26 Ia Za VCCA VCC VCC C Zb 19 20 21 22 23 24 25 I1b I0b VEE I2b I7a I4b I5b VEES I6b I7b Ib I3b I3b I4b I5b I6b I7b Ib 1 2 3 4 5 6 24 23 22 21 20 19 18 Top View Flatpack F24-1 17 16 15 14 I6a I5a I4a I3a I2a I1a I0a 13 7 8 9 10 11 12 C VCC VCCA Zb Rev.: G Za Ia Amendment: /0 1 Issue Date: July, 1999 Micrel SY100S360 PIN NAMES Pin Ia, Ib, Ina, Inb Za - Zb C VEES VCCA Function Data Inputs (n = 1...7) Parity Odd Outputs Compare Output VEE Substrate VCCO for ECL Outputs TRUTH TABLE(1) Sum of High Inputs Even Odd Output Z HIGH LOW NOTE: 1. Comparator Function: C = (I0a I1a) + (I2a I3a) + (I4a I5a) + (I6a I7a) + (I0b I1b) + (I2b I3b) + (I4b I5b) + (I6b I7b) DC ELECTRICAL CHARACTERISTICS VEE = -4.2V to -5.5V unless otherwise specified; VCC = VCCA = GND Symbol IIH Parameter Input HIGH Current Ia, Ib Ina, Inb Power Supply Current Min. -- -- -70 Typ. -- -- -45 Max. 300 200 -30 mA Inputs Open Unit A Condition VIN = VIH (Max.) IEE AC ELECTRICAL CHARACTERISTICS CERPACK VEE = -4.2V to -5.5V unless otherwise specified; VCC = VCCA = GND TA = 0C Symbol tPLH tPHL tPLH tPHL tPLH tPHL tTLH tTHL Parameter Propagation Delay Ina, Inb to Za, Zb Propagation Delay Ina, Inb to C Propagation Delay Ia, Ib to Za, Zb Transition Time 20% to 80%, 80% to 20% Min. 500 500 300 300 Max. 2300 1800 1000 900 TA = +25C Min. 500 500 300 300 Max. 2300 1800 1000 900 TA = +85C Min. 500 500 300 300 Max. 2300 1800 1000 900 Unit ps ps ps ps Condition PLCC VEE = -4.2V to -5.5V unless otherwise specified; VCC = VCCA = GND TA = 0C Symbol tPLH tPHL tPLH tPHL tPLH tPHL tTLH tTHL Parameter Propagation Delay Ina, Inb to Za, Zb Propagation Delay Ina, Inb to C Propagation Delay Ia, Ib to Za, Zb Transition Time 20% to 80%, 80% to 20% Min. 500 500 300 300 Max. 2200 1700 900 900 TA = +25C Min. 500 500 300 300 Max. 2200 1700 900 900 TA = +85C Min. 500 500 300 300 Max. 2200 1700 900 900 Unit ps ps ps ps Condition 2 Micrel SY100S360 TIMING DIAGRAM 0.7 0.1 ns INPUT 0.7 0.1 ns -0.95V 80% 50% 20% -1.69V TRUE tPHL tPLH 50% OUTPUT tPLH tPHL 80% 50% 20% tTLH tTHL COMPLEMENT Propagation Delay and Transition Times NOTE: VEE = -4.2V to -5.5V unless otherwise specified; VCC = VCCA = GND PRODUCT ORDERING CODE Ordering Code SY100S360FC SY100S360JC SY100S360JCTR Package Type F24-1 J28-1 J28-1 Operating Range Commercial Commercial Commercial 3 Micrel SY100S360 24 LEAD CERPACK (F24-1) Rev. 03 4 Micrel SY100S360 28 LEAD PLCC (J28-1) Rev. 03 MICREL-SYNERGY TEL 3250 SCOTT BOULEVARD SANTA CLARA CA 95054 USA FAX + 1 (408) 980-9191 + 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. (c) 2000 Micrel Incorporated 5 |
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