TOSHIBA TC74AC Series TC74AC377 Features: • High Speed: fMAX = 140MHz (typ.) at VCC = 5V • Low Power Dissipation: ICC = 8µA (max.) at Ta = 25°C • High Noise Immunity: VNIH = VNIL = 28% VCC (min.) • Symmetrical Output Impedance: ❙IOH❙ = IOL = 24mA (min.). Capability of driving 50Ω 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. Pin Assignment Truth Table G 1 20 VCC Q1 2 19 Q8 D1 3 18 D8 D2 4 17 D7 Q2 5 16 Q7 Q3 6 15 Q6 D3 7 14 D6 D4 8 13 D5 Q4 9 12 Q5 GND 10 11 CK INPUTS X: OUTPUT G CLOCK DATA Q H X X NO CHANGE L L L L H H X X NO CHANGE Don’t care (TOP VIEW) 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 SYMBOL VALUE UNIT Supply Voltage Range VCC -0.5~7.0 V DC Input Voltage VIN -0.5~VCC + 0.5 V DC Output Voltage VOUT -0.5~VCC + 0.5 V * 500mW in the range of Ta = -40°C~65°C. From Ta = 65°C to 85°C a derating factor of -10mW/°C should be applied up to 300mW. Input Diode Current IIK ±20 mA Output Diode Current IOK ±50 mA mA DC Output Current IOUT ±50 DC VCC/Ground Current ICC ±200 mA Power Dissipation PD 500 (DIP) */180 (SOP) mW Storage Temperature Tstg -65~150 °C Lead Temperature 10sec TL 300 °C Recommended Operating Conditions PARAMETER SYMBOL VALUE UNIT Supply Voltage VCC 2.0~5.5 V V Input Voltage VIN 0~VCC Output Voltage VOUT 0~VCC V Operating Temperature Topr -40~85 °C Input Rise and Fall Time dt/dv 0~100 (VCC = 3.3±0.3V) ns/v 0~20 (VCC = 5±0.5V) DC Electrical Characteristics PARAMETER High-Level Input Voltage Low-Level Input Voltage SYMBOL VIH — VIL — VOH VIN = VIH or VIL VOL VIN = VIH or VIL VCC Min. Typ. Max. Min. Max. 2.0 1.50 — — 1.50 — 3.0 2.10 — — 2.10 — 5.5 3.85 — — 3.85 — 2.0 — — 0.50 — 0.50 3.0 — — 0.90 — 0.90 5.5 — — 1.65 — 1.65 2.0 1.9 2.0 — 1.9 — 2.9 3.0 — 2.9 — 4.5 4.4 4.5 — 4.4 — IOH = -4mA 3.0 2.58 — — 2.48 — IOH = -24mA 4.5 3.94 — — 3.80 — IOH = -75mA* 5.5 — — — 3.85 — 0.1 2.0 — 0.0 0.1 — 3.0 — 0.0 0.1 — 0.1 4.5 — 0.0 0.1 — 0.1 IOL =12mA 3.0 — — 0.36 — 0.44 IOL = 24mA 4.5 — — 0.36 — 0.44 IOL = 75mA* 5.5 — — — — 1.65 IOL= 50µA Low-Level Output Voltage Ta = -40~85°C 3.0 IOH = -50µA High-Level Output Voltage Ta = 25°C TEST CONDITION Input Leakage Current IIN VIN = VCC or GND 5.5 — — ±0.1 — ±1.0 Quiescent Supply Current ICC VIN = VCC or GND 5.5 — — 8.0 — 80.0 UNIT V V V V µA * This spec indicates the capability of driving 50Ω transmission lines. One output should be tested at a time for a 10ms maximum duration. 2/3 TOSHIBA CORPORATION TC74AC377 System Diagram D1 3 E D2 4 E D E E D Q E E E D5 13 E D Q CK Q E D6 14 E D Q CK Q E D7 17 E Q D CK Q E D8 18 E D Q CK Q E E D Q CK Q Q CK Q 11 5 Q2 2 Q1 G D4 8 D Q CK Q CK Q CLOCK D3 7 1 6 Q3 12 Q5 9 Q4 16 Q7 15 Q6 19 Q8 E E Timing Requirements (Input tr = tf = 3n) Ta=25˚C PARAMETER SYMBOL Minimum Pulse Width (CK) tW(L) — tW(H) Minimum Set-up Time (D–CK) tW(L) — Minimum Set-up Time (G–CK) ts — Minimum Hold Time Ta= –40~85˚ TEST CONDITION th — UNIT VCC Typ. Max. Max. 3.3±0.3 — 8.0 8.0 5.0±0.5 — 5.0 5.0 3.3±0.3 — 8.0 8.0 5.0±0.5 — 4.0 4.0 3.3±0.3 — 9.0 9.0 5.0±0.5 — 4.0 4.0 3.3±0.3 — 1.0 1.0 5.0±0.5 — 1.0 1.0 ns AC Electrical Characteristics (CL = 50pF, RL = 500Ω, Input tr = tf = 3ns) PARAMETER SYMBOL Ta = 25°C TEST CONDITION VCC Propagation Delay Time (CK–Q) tpLH Maximum Clock Frequency fMAX — Input Capacitance CIN Power Dissipation Capacitance CPD1 tpHL Min. Typ. Ta = -40~85°C Max. Min. 3.0±0.3 — 10.6 17.6 1.0 20.0 5.0±0.5 — 7.4 10.6 1.0 12.0 3.0±0.3 50 95 — 50 — 5.0±0.5 80 140 — 80 — — — — 5 10 — 10 — — — 30 — — — — UNIT Max. ns MHz pF 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