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N74F651AD Datasheet(PDF) 2 Page - NXP Semiconductors |
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N74F651AD Datasheet(HTML) 2 Page - NXP Semiconductors |
2 / 14 page Philips Semiconductors Product specification 74F651A/74F652A Transceivers/registers 74F651A Octal transceiver/register, inverting (3-State) 74F652A Octal transceiver/register, non-inverting (3-State) 2 1999 Jun 23 853–1126 21852 FEATURES • Combines 74F245 and two 74F374 type functions in one chip • High impedance base inputs for reduced loading (70µA in high and low states) • Independent registers for A and B buses • Multiplexed real-time and stored data • Choice of non-inverting and inverting data paths • 3-State outputs • Industrial temperature range available (–40°C to +85°C) for 74F652A DESCRIPTION The 74F651A and 74F652A transceivers/registers consist 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 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 (OEAB, OEBA) and select (SAB, SBA) pins are provided for bus management. TYPE TYPICAL fmax TYPICAL SUPPLY CURRENT( TOTAL) 74F651/74F652 110MHz 140mA 74F651A/74F652A 175MHz 110mA ORDERING INFORMATION ORDER CODE DESCRIPTION COMMERCIAL RANGE INDUSTRIAL RANGE PKG DWG # DESCRIPTION VCC = 5V ±10%, VCC = 5V ±10%, PKG DWG # Tamb = 0°C to +70°C Tamb = –40°C to +85°C 24–pin plastic slim DIP (300mil) N74F651AN, N74F652AN I74F652AN SOT222-1 24–pin plastic SOL N74F651AD, N74F652AD I74F652AD SOT137-1 INPUT AND OUTPUT LOADING AND FAN OUT TABLE PINS DESCRIPTION 74F (U.L.) HIGH/LOW LOAD VALUE HIGH/LOW A0 – A7, B0 – B7 A, B inputs 3.5/0.116 70 µA/70µA CPAB, CPBA A–to–B, B–to–A clock inputs 1.0/0.033 20 µA/20µA SAB, SBA A–to–B, B–to–A select inputs 1.0/0.033 20 µA/20µA OEAB, OEBA A–to–B, B–to–A output enable inputs 1.0/0.033 20 µA/20µA A0 – A7, B0 – B7 A, B outputs for N74F651, N74F652 750/106.7 15mA/64mA A0 – A7, B0 – B7 A, B outputs for N74F651A, N74F652A 750/80 15mA/48mA A0 – A7, B0 – B7 A, B outputs for I74F652A 750/60 15mA/36mA Note to input and output loading and fan out table 1. One (1.0) FAST unit load is defined as: 20 µA in the high state and 0.6mA in the low state. |
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