TC74AC244F(EL,F) Toshiba

TC74AC240F,TC74AC244F CMOS Digital Integrated Circuits Silicon Monolithic TC74AC240F,TC74AC244F 1. Functional Description Octal Bus Buffer TC74AC240F: INVERTED, 3-STATE OUTPUTS TC74AC244F: NON-INVERTED, 3-STATE OUTPUTS 2. General The TC74AC240F and TC74AC244F are advanced high speed CMOS OCTAL BUS BUFFERs fabricated with silicon gate and double-layer metal wiring C2MOS technology. They achieve the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The TC74AC240F is an inverting 3-state buffer while the TC74AC244F is non-inverting. Both devices have two active-low output enables. These devices are designed to be used in such applications as 3-state memory address drivers. All inputs are equipped with protection circuits against static discharge or transient excess voltage. 3. Features (1) High speed: t = 4.0 ns (typ.) at V = 5.0 V pd CC (2) Low power dissipation: I = 8.0 A (max) at T = 25 CC a (3) High noise immunity: V = V = 28 % V (min) NIH NIL CC (4) Output current: I /I = 24 mA (min) (V = 4.5 V) OH OL CC (5) Balanced propagation delays: t t PLH PHL (6) Wide operating voltage range: V = 2.0 V to 5.5 V CC(opr) (7) Pin and function compatible with 74F240/244 4. Packaging SOP20 Start of commercial production 1986-05 2021 2021-02-19 1 Toshiba Electronic Devices & Storage Corporation Rev.1.0TC74AC240F,TC74AC244F 5. Pin Assignment TC74AC240F TC74AC244F 6. Marking TC74AC240F TC74AC244F 7. IEC Logic Symbol TC74AC240F TC74AC244F 2021 2021-02-19 2 Toshiba Electronic Devices & Storage Corporation Rev.1.0