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SY100S370JC Datasheet(PDF) 1 Page - Micrel Semiconductor |
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SY100S370JC Datasheet(HTML) 1 Page - Micrel Semiconductor |
1 / 7 page Pin Function Ana, Anb Address Inputs (n = 0,1,2) Ena, Enb Enable Inputs (n = 1,2) M Mode Control Input Ha Z0 – Z3 (Z0a – Z3a) Polarity Select Input Hb Z4 – Z7 (Z0b – Z3b) Polarity Select Input Hc Common Polarity Select Input Z0 – Z7 Single 1-of-8 Data Outputs Zna, Znb Dual 1-of-4 Data Outputs (n = 1...4) VEES VEE Substrate VCCA VCCO for ECL Outputs SY100S370 UNIVERSAL DEMULTIPLEXER/ DECODER FEATURES s Max. propagation delay of 1200ps s IEE min. of –92mA s Industry standard 100K ECL levels s Extended supply voltage option: VEE = –4.2V to –5.5V s Voltage and temperature compensation for improved noise immunity s Internal 75K Ω input pull-down resistors s 60% faster than National or Signetics s Approximately 40% lower power than Fairchild s Function and pinout compatible with Fairchild F100K s Available in 24-pin CERPACK and 28-pin PLCC packages DESCRIPTION The SY100S370 is a universal demultiplexer/decoder that can be used as either a dual 1-of-4 decoder or as a single 1-of-8 decoder and is designed for use in high- performance ECL systems. The Mode control (M) input determines the function. In the dual 1-of-4 mode, each 4- input group has a pair of active-LOW Enable (E) inputs. The Enable pins are assigned such that in the single 1-of- 8 mode they can be tied together in pairs to result in two active-LOW Enable inputs. E1a will be tied to E1b and E2a to E2b. The auxiliary inputs (Hn) are used to determine whether the outputs are active-HIGH or active-LOW. The address inputs for the dual 1-of-4 mode are A0a, A1a, A0b. A2a is unused. In the 1-of-8 mode, the address inputs are A0a, A1a, A2a. The inputs on the device have 75K Ω pull-down resistors. PIN NAMES Rev.: G Amendment: /0 Issue Date: July, 1999 A2a M A1a A0a Z2a (Z2) Z1a (Z1) Hc A0b Z3b (Z7) Hb Z0b (Z4) A1b 18 17 16 15 14 13 1 2 3 4 5 6 7 24 8 23 9 22 10 21 11 20 12 19 Top View Flatpack F24-1 PIN CONFIGURATIONS Z0a (Z0) Z3a (Z3) VCCA VCC Z1b (Z5) VCC E1a VEE E2b E1b E2a VEES 4 3 2 1 28 27 12 13 14 15 16 17 19 11 20 10 21 9 22 8 23 7 24 6 Top View PLCC J28-1 Z2b (Z6) Ha 26 18 25 5 1 |
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