DUAL PARITY CHECKER/ GENERATOR FEATURES I1a I0a I2a I4a I3a VEES PIN CONFIGURATIONS I5a 11 10 9 8 7 6 5 I6a I7a VEE VEES I0b BLOCK DIAGRAM I0a I1a I2b Za Top View PLCC J28-1 Ia Za VCCA VCC VCC C Zb I6a I7a I5a I4b I5b I6b 2 3 17 16 I4a I3a 15 14 I2a I1a 13 7 8 9 10 11 12 I0a I7b 4 5 Ib 6 Top View Flatpack F24-1 Za Ia Zb I1b I0b VEE 24 23 22 21 20 19 18 Zb I2b I3b 1 VCC VCCA C I0b I1b I3b C I6a I7a Ia I2b 19 20 21 22 23 24 25 I4a I5a I4b I5b 4 3 2 1 28 27 26 I6b I7b Ib I2a I3a I1b 12 13 14 15 16 17 18 VEES ■ ■ ■ ■ ■ 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 75KΩ pull-down resistors. 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 75KΩ 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 I4b I5b ■ DESCRIPTION I3b ■ ■ ■ ■ SY100S360 I6b I7b Ib Rev.: G 1 Amendment: /0 Issue Date: July, 1999 SY100S360 Micrel TRUTH TABLE(1) PIN NAMES Pin Function Ia, Ib, Ina, Inb Data Inputs (n = 1...7) Za – Z b Parity Odd Outputs C Compare Output VEES VEE Substrate VCCA VCCO for ECL Outputs Sum of High Inputs Output Z Even HIGH Odd 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 IEE Parameter Input HIGH Current Ia, Ib Ina, Inb Power Supply Current Min. Typ. Max. — — — — 300 200 –70 –45 –30 Unit Condition µA VIN = VIH (Max.) mA Inputs Open AC ELECTRICAL CHARACTERISTICS CERPACK VEE = –4.2V to –5.5V unless otherwise specified; VCC = VCCA = GND TA = 0°C Symbol Parameter TA = +25°C TA = +85°C Min. Max. Min. Max. Min. Max. Unit tPLH tPHL Propagation Delay Ina, Inb to Za, Zb 500 2300 500 2300 500 2300 ps tPLH tPHL Propagation Delay Ina, Inb to C 500 1800 500 1800 500 1800 ps tPLH tPHL Propagation Delay Ia, Ib to Za, Zb 300 1000 300 1000 300 1000 ps tTLH tTHL Transition Time 20% to 80%, 80% to 20% 300 900 300 900 300 900 ps Condition PLCC VEE = –4.2V to –5.5V unless otherwise specified; VCC = VCCA = GND TA = 0°C Symbol Parameter TA = +25°C TA = +85°C Min. Max. Min. Max. Min. Max. Unit tPLH tPHL Propagation Delay Ina, Inb to Za, Zb 500 2200 500 2200 500 2200 ps tPLH tPHL Propagation Delay Ina, Inb to C 500 1700 500 1700 500 1700 ps tPLH tPHL Propagation Delay Ia, Ib to Za, Zb 300 900 300 900 300 900 ps tTLH tTHL Transition Time 20% to 80%, 80% to 20% 300 900 300 900 300 900 ps 2 Condition SY100S360 Micrel TIMING DIAGRAM 0.7 ± 0.1 ns 0.7 ± 0.1 ns INPUT –0.95V 80% 50% 20% –1.69V TRUE tPHL tPLH 50% OUTPUT tPLH tPHL 80% 50% 20% COMPLEMENT tTLH tTHL Propagation Delay and Transition Times NOTE: VEE = –4.2V to –5.5V unless otherwise specified; VCC = VCCA = GND PRODUCT ORDERING CODE Ordering Code 3 Package Type Operating Range SY100S360FC F24-1 Commercial SY100S360JC J28-1 Commercial SY100S360JCTR J28-1 Commercial SY100S360 Micrel 24 LEAD CERPACK (F24-1) Rev. 03 4 SY100S360 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 5