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TC74AC273F

Toshiba Semiconductor
Part Number TC74AC273F
Manufacturer Toshiba Semiconductor
Description Octal D-Type Flip-Flop
Published Aug 25, 2006
Detailed Description TC74AC273P/F/FT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74AC273P, TC74AC273F, TC74AC273FT Octal D-...
Datasheet PDF File TC74AC273F PDF File

TC74AC273F
TC74AC273F

Overview
TC74AC273P/F/FT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74AC273P, TC74AC273F, TC74AC273FT Octal D-Type Flip Flop with Clear The TC74AC273 is an advanced high speed CMOS OCTAL D-TYPE FLIP FLOP fabricated with silicon gate and double-layer metal wiring C2MOS technology.
It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation.
Information signals applied to D inputs are transferred to the Q output on the positive going edge of the clock pulse.
When the CLR input is held “L”, the Q outputs are at a low logic level independent of the other inputs.
All inputs are equipped with protection circuits against static discharge or transient excess voltage.
Features • High speed: fmax = 170 MHz (typ.
) at VCC = 5 V • Low power dissipation: ICC = 8 μA (max) at Ta = 25°C • High noise immunity: VNIH = VNIL = 28% VCC (min) • Symmetrical output impedance: |IOH| = IOL = 24 mA (min) Capability of driving 50 Ω transmission lines.
• Balanced propagation delays: tpLH ∼− tpHL • Wide operating voltage range: VCC (opr) = 2 V to 5.
5 V • Pin and function compatible with 74F273 TC74AC273P TC74AC273F TC74AC273FT Weight DIP20-P-300-2.
54A SOP20-P-300-1.
27A TSSOP20-P-0044-0.
65A : 1.
30 g (typ.
) : 0.
22 g (typ.
) : 0.
08 g (typ.
) Start of commercial production 1988-05 1 2014-03-01 Pin Assignment TC74AC273P/F/FT IEC Logic Symbol CLR 1 Q1 2 D1 3 D2 4 Q2 5 Q3 6 D3 7 D4 8 Q4 9 GND 10 20 VCC 19 Q8 18 D8 17 D7 16 Q7 15 Q6 14 D6 13 D5 12 Q5 11 CK (top view) Truth Table Inputs CLR D CK L X X H L H H H X X: Don’t care Output Q L L H Qn System Diagram Function Clear ― ― No Change CLR (1) R CK (11) C1 D1 (3) 1D D2 (4) D3 (7) D4 (8) D5 (13) D6 (14) D7 (17) D8 (18) (2) Q1 (5) Q2 (6) Q3 (9) Q4 (12) Q5 (15) Q6 (16) Q7 (19) Q8 1 CLR D1 D2 D3 D4 D5 D6 D7 D8 3 4 7 8 13 14 17 18 R D R D R D R D R D R D R D R D 11 CK CK Q CK Q CK Q CK Q CK Q CK Q CK Q CK Q 2 5 6 9 ...


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