74f646a NXP Semiconductors, 74f646a Datasheet
74f646a
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74f646a Summary of contents
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... Octal transceiver/register, non-inverting (3-State) 74F648A Octal transceiver/register, inverting (3-State) Product data Replaces 74F646/646A/74F648/648A dated 1990 Sep 25 INTEGRATED CIRCUITS 2003 Feb 04 ...
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... NOTE: One (1.0) FAST unit load is defined as the HIGH state and 0 the LOW state. 2003 Feb 04 DESCRIPTION The 74F646A and 74F648A 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 ...
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... CPBA 22 SBA 1 CPAB 2 SAB Pin 24 CC GND = Pin 12 3 Product data 74F646A/74F648A 74/646A G3 3 EN1 [BA] 3 EN2 [AB SF00388 74F646A channels other channels SF00393 20 B0 ...
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... LOGIC DIAGRAM DIR 23 CPBA 22 SBA 1 CPAB 2 SAB Product data 74F646A/74F648A 74F648A G3 3 EN1 [BA] 3 EN2 [AB SF00391 74F648A channels 1D ...
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... X Input Output Stored A data to B bus PARAMETER 5 Product data 74F646A/74F648A OPERATING MODE 74F646A 74F648A Store A, B unspecified* Store B, A unspecified* Store A and B data Isolation, hold storage Real time B data to A bus Stored B data to A bus Real time A data to B bus Stored A data to B bus ...
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... Philips Semiconductors Transceivers/registers The following examples demonstrate the four fundamental bus-management functions that can be performed with the 74F646A and 74F648A. The select pins determine whether data is stored or transferred through the device in real time. The output enable pins determine the direction of the data flow. ...
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... CPBA, SAB, SBA V = MAX 0 MAX 2 A0-A7, B0- MAX 0 MAX 2. CCH MAX CCL CC I CCZ 7 Product data 74F646A/74F648A LIMITS UNIT 1 2 MIN TYP MAX 10%V 2.4 – – 5%V 2.7 3.4 – 10%V 2.0 – – 10%V – 0.38 0. – –0.73 – ...
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... Philips Semiconductors Transceivers/registers AC ELECTRICAL CHARACTERISTICS FOR 74F646A SYMBOL PARAMETER f Maximum clock frequency max t Propagation delay PLH t CPAB or CPBA PHL t Propagation delay PLH PHL t Propagation delay PLH t SAB or SBA PHL t Output enable time PZH ...
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... Waveform 6 4.0 6.5 9.0 Waveform 5 2.5 5.0 8.5 Waveform 6 2.5 5.0 8 +25 C amb TEST CONDITION 500 L L MIN TYP MAX 4.0 Waveform 4 4.0 0 Waveform 4 0 3.5 Waveform 1 3.5 9 Product data 74F646A/74F648A LIMITS +70 C amb V = +5.0 V 10% UNIT pF 500 L L MIN MAX 135 ns 4.5 10.5 ns 4.5 10.5 2.0 8.5 ns 4.0 9.5 3.5 11.5 ns 4.5 10.0 3.5 11.0 ns 4.0 11 ...
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... CPAB SF00396 Waveform 4. Data set-up time and hold times OE DIR V -0. SF00398 Waveform 6. 3-state output enable time to LOW level and output disable time from LOW level 10 Product data 74F646A/74F648A SBA or SAB PHL PLH ...
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... NEGATIVE PULSE 10% t THL ( TLH ( 90% POSITIVE V PULSE M 10% Input Pulse Definition INPUT PULSE REQUIREMENTS family V amplitude M of OUT 74F 3.0V 1.5V 11 Product data 74F646A/74F648A t AMP ( TLH ( THL ( f AMP ( rep. rate ...
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... Philips Semiconductors Transceivers/registers DIP24: plastic dual in-line package; 24 leads (300 mil) 2003 Feb 04 74F646A/74F648A 12 Product data SOT222-1 ...
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... Philips Semiconductors Transceivers/registers SO24: plastic small outline package; 24 leads; body width 7.5 mm 2003 Feb 04 74F646A/74F648A 13 Product data SOT137-1 ...
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... Transceivers/registers REVISION HISTORY Rev Date Description _4 20030204 74F646A/74F648A Product data (9397 750 05151); ECN 853-1124 29306 of 17 December 2002. Supersedes 74F646/A/74F648/A_3 of 1990Sep25. Modifications: Delete all references to non-A version specifications. The non-A versions of these devices have been discontinued. _3 19900925 74F646/A/74F648/A Product specification (9397 750 05151); ECN 853-1124 00515 of 25 September 1990. ...