Features: • A and C grades• Low input and output leakage 1A (max.)• CMOS power levels• True TTL input and output compatibility: VOH = 3.3V (typ.) VOL = 0.3V (typ.)• Resistor outputs (-15mA IOH, 12mA IOL)• Meets or exceeds JEDEC standard 18 specifications•...
IDT74FCT2543CT: Features: • A and C grades• Low input and output leakage 1A (max.)• CMOS power levels• True TTL input and output compatibility: VOH = 3.3V (typ.) VOL = 0.3V (typ.)• R...
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Symbol |
Description |
Max |
Unit |
VTERM(2) |
Terminal Voltage with Respect to GND |
0.5 to +7 |
V |
VTERM(3) |
Terminal Voltage with Respect to GND |
0.5 to VCC+0.5 |
V |
TSTG |
Storage Temperature |
65 to +150 |
°C |
IOUT |
DC Output Current |
60 to +120 |
mA |
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. No terminal voltage may exceed Vcc by +0.5V unless otherwise noted.
2. Inputs and Vcc terminals only.
3. Output and I/O terminals only.
The IDT74FCT2543CT is a non-inverting octal transceiver built using an advanced dual metal CMOS technology. This device contains two sets of eight D-type latches with separate input and output controls for each set. For data flow from A to B, for example, the A-to-B Enable (CEAB) input must be low in order to enter data from A0A7 or to take data from B0B7, as indicated in the Function Table. WithCEAB 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 the LEAB signal 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 the data present at the output of the A latches. Control of data from B to A issimilar,but uses the CEBA, LEBA and OEBAinputs.
The IDT74FCT2543CT has balanced output drive with current limiting resistors. This offers low ground bounce, minimal undershoot and controlled output fall times-reducing the need for external series terminating resistors. FCT2543T parts are plug-in replacements for FCT543T parts.