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MB2646 Datasheet(PDF) 1 Page - NXP Semiconductors |
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MB2646 Datasheet(HTML) 1 Page - NXP Semiconductors |
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1 / 16 page  Philips Semiconductors Products Product specification MB2646 Dual octal bus transceiver/registers (3-State) 1 August 23, 1993 853-1617 10589 FEATURES • Independent registers for A and B buses • Multiple V CC and GND pins minimize switching noise • Live insertion/extraction permitted • Power-up 3-State • Power-up reset • Multiplexed real-time and stored data • Outputs sink 64mA and source 32mA • Latch-up protection exceeds 500mA per Jedec JC40.2 Std 17 • ESD protection exceeds 2000V per MIL STD 883 Method 3015 and 200V per Machine Model DESCRIPTION The MB2646 high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive. The MB2646 dual transceiver/register consists of two sets of bus transceiver circuits with 3-State outputs, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers. Data on the A or B bus will be clocked into the registers as the appropriate clock pin goes High. Output Enable (nOE) and Direction (nDIR) pins are provided to control the transceiver function. In the transceiver mode, data present at the high impedance port may be stored in either the A or B register or both. QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS Tamb = 25°C; GND = 0V TYPICAL UNIT tPLH tPHL Propagation delay nAx to nBx CL = 50pF; VCC = 5V 3.2 ns CIN Input capacitance VI = 0V or VCC 4 pF CI/O I/O capacitance VO = 0V or VCC; 3-State 7 pF ICCZ Total supply current Outputs disabled; VCC = 5.5V 500 µA ORDERING INFORMATION PACKAGES TEMPERATURE RANGE ORDER CODE DRAWING NUMBER 52-pin plastic Quad Flat Pack -40 °C to +85°C MB2646BB 1418B PIN CONFIGURATION LOGIC SYMBOL 19 22 20 23 17 16 25 26 24 15 14 21 18 1A2 1A3 1A4 GND 1A5 1A6 1A7 2A0 2A1 2A2 2A3 2A4 2A5 1 2 3 4 5 6 7 8 9 10 11 12 13 47 44 46 43 49 50 41 40 42 51 52 45 48 1B2 1B3 1B4 1B5 1B6 1B7 2B0 2B1 2B2 GND 2B3 2B4 2B5 39 38 37 36 35 34 33 32 31 30 29 28 27 MB2646 52-pin PQFP 42 41 39 38 37 36 35 34 1B0 1B1 1B2 1B3 1B4 1B5 1B6 1B7 50 51 1 2 3 5 6 7 1A0 1A1 1A2 1A3 1A4 1A5 1A6 1A7 48 49 1CPAB 1SAB 47 1DIR 45 1CPBA 33 32 31 29 28 27 25 24 2B0 2B1 2B2 2B3 2B4 2B5 2B6 2B7 8 9 10 11 12 13 15 16 2A0 2A1 2A2 2A3 2A4 2A5 2A6 2A7 19 18 2CPAB 2SAB 20 2DIR 22 2CPBA 44 1SBA 46 1OE 23 2SBA 21 2OE |
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Similar Description - MB2646 |
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