CY74FCT2543ATQCT ,Octal Registered Transceivers with 3-State Outputs and Series Damping ResistorsCY74FCT2543T 8-BIT LATCHED TRANSCEIVERWITH 3-STATE OUTPUTSSCCS042C – SEPTEMBER 1994 – REVISED NOVE ..
CY74FCT2543ATSOC ,Octal Registered Transceivers with 3-State Outputs and Series Damping Resistorsmaximum ratings” may cause permanent damage to the device. These are stress ratings only, andfuncti ..
CY74FCT2543CTSOC ,Octal Registered Transceivers with 3-State Outputs and Series Damping Resistorsblock diagramDetail AD Q B0LEA0 Q DLEA B1 1A B2 2A B3 3A B4 Detail A x 7 4A B5 5A6 B6AB7 7OEBAOEABC ..
CY74FCT2543TQCT , 8-BIT LATCHED TRANSCEIVER WITH 3-STATE OUTPUTS
CY74FCT2573ATQCT ,Octal D-Type Transparent Latches with 3-State Outputs and Series Damping Resistorsmaximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage ra ..
CY74FCT2573ATQCTG4 ,Octal D-Type Transparent Latches with 3-State Outputs and Series Damping Resistors 20-SSOP -40 to 85 CY74FCT2573T 8-BIT LATCHWITH 3-STATE OUTPUTSSCCS075 – OCTOBER 2001Q OR SO PACKAGE* Function and Pi ..
D2088 , 4VA LOW PROFILE ENCAPSULATED TRANSFORMER
D209L , High Voltage Fast-Switching NPN Power Transistor
D209L , High Voltage Fast-Switching NPN Power Transistor
D209L. , High Voltage Fast-Switching NPN Power Transistor
D20LC20U , Super Fast Recovery Rectifiers(200V 20A)
D20LC20U , Super Fast Recovery Rectifiers(200V 20A)
CY74FCT2543ATQCT-CY74FCT2543ATSOC-CY74FCT2543CTSOC
Octal Registered Transceivers with 3-State Outputs and Series Damping Resistors
OHof Equivalent FCT Functions Edge-Rate Control Circuitry for
Significantly Improved Noise
Characteristics Ioff Supports Partial-Power-Down Mode
Operation Matched Rise and Fall Times Fully Compatible With TTL Input and
Output Logic Levels 12-mA Output Sink Current
15-mA Output Source Current Separation Controls for Data Flow in Each
Direction Back-to-Back Latches for Storage ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101) 3-State Outputs
descriptionThe CY74FCT2543T octal latched transceiver contains two sets of eight D-type latches. Separate latch enable
(LEAB, LEBA) and output enable (OEAB, OEBA) inputs permit each latch set to have independent control of
inputting and outputting in either direction of data flow. For example, for data flow from A to B, the A-to-B enable
(CEAB) input must be low to enter data from A or to take data from B, as indicated in the function table. With
CEAB low, a low signal on the A-to-B latch enable (LEAB) input makes the A-to-B latches transparent; a
subsequent low-to-high transition of LEAB puts the A latches in the storage mode and their outputs no longer
change with the A inputs. With CEAB and OEAB both low, the 3-state B output buffers are active and reflect
data present at the output of the A latches. Control of data from B to A is similar, but uses CEAB, LEAB, and
OEAB inputs. On-chip termination resistors at the outputs reduce system noise caused by reflections. The
CY74FCT2543T can replace the CY74FCT543T to reduce noise in an existing design.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.136
CEAB
GND136
LEAB
OEAB
