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| TOSHIBA TC74AC Series TC74AC377 Features: * * * * * * * * High Speed: fMAX = 140MHz (typ.) at VCC = 5V Low Power Dissipation: ICC = 8A (max.) at Ta = 25C High Noise Immunity: VNIH = VNIL = 28% VCC (min.) Symmetrical Output Impedance: IOH = IOL = 24mA (min.). Capability of driving 50 transmission lines. Balanced Propagation Delays: tpLH = tpHL Wide Operating Voltage Range: VCC (opr.) = 2V~5.5V Pin and Function Compatible with 74F377 Available in DIP, SOIC and SOP Packages The TC74AC377 is an advanced high speed CMOS OCTAL D-TYPE FLIP-FLOP fabricated with silicon gate and doublelayer metal wiring C2MOS technology. It achieves the high speed operation similar to equivalent Bipolar Schottky TTL, while maintaining the CMOS low power dissipation. These 8-bit D-type flip-flops are controlled by a clock input (CK) and a output enable input (G). The signal level applied to the D inputs are transferred to Q outputs during the positive going transition of CK. When the G is high, the eight outputs are in a high impedance state. All inputs are equipped with protection circuits against static discharge or transient excess voltage. Truth Table Pin Assignment G Q1 D1 D2 Q2 Q3 D3 D4 Q4 1 2 3 4 5 6 7 8 9 20 19 18 17 16 15 14 13 12 11 (TOP VIEW) VCC Q8 D8 D7 Q7 L Q6 D6 D5 Q5 CK X: X Don't care X NO CHANGE L H H L L G H CLOCK X DATA X Q NO CHANGE INPUTS OUTPUT GND 10 IEC Logic Symbol (1) G (11) CK (3) D1 (4) D2 (7) D3 (8) D4 (13) D5 (14) D6 (17) D7 (18) D8 G1 1C2 2D (2) Q1 (5) Q2 (6) Q3 (9) Q4 (12) Q5 (15) Q6 (16) Q7 (19) Q8 The information contained here is subject to change without notice. The information contained herein is presented only as guide for the applications of our products. No responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of TOSHIBA or others. These TOSHIBA products are intended for usage in general electronic equipments (office equipment, communication equipment, measuring equipment, domestic electrification, etc.) Please make sure that you consult with us before you use these TOSHIBA products in equipments which require high quality and/or reliability, and in equipments which could have major impact to the welfare of human life (atomic energy control, spaceship, traffic signal, combustion control, all types of safety devices, etc.). TOSHIBA cannot accept liability to any damage which may occur in case these TOSHIBA products were used in the mentioned equipments without prior consultation with TOSHIBA. TOSHIBA CORPORATION 1/3 TC74AC377 Absolute Maximum Ratings PARAMETER Supply Voltage Range DC Input Voltage DC Output Voltage Input Diode Current Output Diode Current DC Output Current DC VCC/Ground Current Power Dissipation Storage Temperature Lead Temperature 10sec SYMBOL VCC VIN VOUT IIK IOK IOUT ICC PD Tstg TL VALUE -0.5~7.0 -0.5~VCC + 0.5 -0.5~VCC + 0.5 20 50 50 200 500 (DIP) */180 (SOP) -65~150 300 UNIT V V V mA mA mA mA mW C C * 500mW in the range of Ta = -40C~65C. From Ta = 65C to 85C a derating factor of -10mW/C should be applied up to 300mW. Recommended Operating Conditions PARAMETER Supply Voltage Input Voltage Output Voltage Operating Temperature Input Rise and Fall Time SYMBOL VCC VIN VOUT Topr dt/dv VALUE 2.0~5.5 0~VCC 0~VCC -40~85 0~100 (VCC = 3.30.3V) 0~20 (VCC = 50.5V) UNIT V V V C ns/v DC Electrical Characteristics PARAMETER SYMBOL TEST CONDITION VCC 2.0 High-Level Input Voltage VIH -- 3.0 5.5 2.0 Low-Level Input Voltage VIL -- 3.0 5.5 2.0 IOH = -50A High-Level Output Voltage VOH VIN = VIH or VIL IOH = -4mA IOH = -24mA IOH = -75mA* IOL= 50A Low-Level Output Voltage VOL VIN = VIH or VIL IOL =12mA IOL = 24mA IOL = 75mA* Input Leakage Current Quiescent Supply Current IIN ICC VIN = VCC or GND VIN = VCC or GND 3.0 4.5 3.0 4.5 5.5 2.0 3.0 4.5 3.0 4.5 5.5 5.5 5.5 Min. 1.50 2.10 3.85 -- -- -- 1.9 2.9 4.4 2.58 3.94 -- -- -- -- -- -- -- -- -- Ta = 25C Typ. -- -- -- -- -- -- 2.0 3.0 4.5 -- -- -- 0.0 0.0 0.0 -- -- -- -- -- Max. -- -- -- 0.50 0.90 1.65 -- -- -- -- -- -- 0.1 0.1 0.1 0.36 0.36 -- 0.1 8.0 Ta = -40~85C Min. 1.50 2.10 3.85 -- -- -- 1.9 2.9 4.4 2.48 3.80 3.85 -- -- -- -- -- -- -- -- Max. -- -- -- 0.50 0.90 1.65 -- -- -- -- -- -- 0.1 0.1 0.1 0.44 0.44 1.65 1.0 80.0 A V V V V UNIT * This spec indicates the capability of driving 50 transmission lines. One output should be tested at a time for a 10ms maximum duration. 2/3 TOSHIBA CORPORATION TC74AC377 System Diagram D1 3 D2 4 D3 7 D4 8 D5 13 D6 14 D7 17 D8 18 E E D Q E E D Q E E D Q E E D Q E E D Q E E D Q E E D Q E E D Q CK Q CLOCK 11 CK Q CK Q CK Q CK Q CK Q CK Q CK Q 2 Q1 G 1 E E 5 Q2 6 Q3 9 Q4 12 Q5 15 Q6 16 Q7 19 Q8 Timing Requirements (Input tr = tf = 3n) Ta=25C PARAMETER SYMBOL tW(L) tW(H) tW(L) ts th TEST CONDITION VCC Minimum Pulse Width (CK) Minimum Set-up Time (D-CK) Minimum Set-up Time (G-CK) Minimum Hold Time -- 3.30.3 5.00.5 3.30.3 5.00.5 3.30.3 5.00.5 3.30.3 5.00.5 Typ. -- -- -- -- -- -- -- -- Max. 8.0 5.0 8.0 4.0 9.0 4.0 1.0 1.0 Max. 8.0 5.0 8.0 4.0 9.0 4.0 1.0 1.0 ns Ta= -40~85 UNIT -- -- -- AC Electrical Characteristics (CL = 50pF, RL = 500, Input tr = tf = 3ns) PARAMETER Propagation Delay Time (CK-Q) Maximum Clock Frequency Input Capacitance Power Dissipation Capacitance SYMBOL tpLH tpHL fMAX CIN CPD1 TEST CONDITION VCC -- -- -- -- 3.00.3 5.00.5 3.00.3 5.00.5 -- -- Min. -- -- 50 80 -- -- Ta = 25C Typ. 10.6 7.4 95 140 5 30 Max. 17.6 10.6 -- -- 10 -- Ta = -40~85C Min. 1.0 1.0 50 80 -- -- Max. 20.0 12.0 -- -- 10 -- ns MHz pF UNIT Note (1): CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: ICC (opr) = CPD * VCC * fIN + ICC / 8 (per F/F). And the total CPD when n pcs. of Flip-Flop operate can be gained by the following equation: CPD (total)=20+10 * n. TOSHIBA CORPORATION 3/3 |
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