74F651A Datasheet | Philips Semiconductors

FEATURES 74F651A/74F652A - bines 74F245 and two 74F374 type functions in one chip - High impedance base inputs for reduced loading (70µA in high and low states) 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. - 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 TYPE 74F651/74F652 74F651A/74F652A TYPICAL fmax 110MHz 175MHz TYPICAL SUPPLY CURRENT( TOTAL) 140m A 110m A ORDERING INFORMATION ORDER CODE DESCRIPTION MERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C N74F651AN, N74F652AN N74F651AD, N74F652AD INDUSTRIAL RANGE VCC = 5V ±10%, Tamb = - 40°C to +85°C I74F652AN I74F652AD PKG DWG # 24- pin plastic slim DIP (300mil) 24- pin plastic SOL SOT222-1 SOT137-1 INPUT AND OUTPUT LOADING AND FAN OUT TABLE PINS A0 - A7, B0 - B7 CPAB, CPBA SAB, SBA OEAB, OEBA A0 - A7, B0 - B7 A0 - A7, B0 - B7 A0 - A7, B0 - B7 A, B inputs A- to- B, B- to- A clock inputs A- to- B, B- to- A select inputs A- to- B, B- to- A output enable inputs A, B outputs for N74F651, N74F652 A, B outputs for N74F651A, N74F652A A, B outputs for I74F652A DESCRIPTION 74F (U.L.) HIGH/LOW 3.5/0.116 1.0/0.033 1.0/0.033 1.0/0.033 750/106.7 750/80 750/60 LOAD VALUE HIGH/LOW 70µA/70µA 20µA/20µA 20µA/20µA 20µA/20µA 15m A/64m A 15m A/48m A 15m A/36m A Note to input and output loading and fan out table 1. One (1.0) FAST unit load is defined as: 20µA in the high state and 0.6m A in the low state. 1999 Jun 23 853- 1126 21852 Philips Semiconductors Product specification Transceiver...