M74HC173 QUAD D-TYPE REGISTER (3 STATE) HIGH SPEED: f = 84MHz (TYP.) at V = 6V MAX CC LOW POWER DISSIPATION: I = 4A(MAX.) at T =25C CC A HIGH NOISE IMMUNITY: V = V = 28 % V (MIN.) NIH NIL CC DIP SOP TSSOP SYMMETRICAL OUTPUT IMPEDANCE: I = I =6mA (MIN) OH OL BALANCED PROPAGATION DELAYS: t t ORDER CODES PLH PHL WIDE OPERATING VOLTAGE RANGE: PACKAGE TUBE T & R V (OPR) = 2V to 6V CC DIP M74HC173B1R PIN AND FUNCTION COMPATIBLE WITH SOP M74HC173M1R M74HC173RM13TR 74 SERIES 173 TSSOP M74HC173TTR DESCRIPTION The M74HC173 is an high speed CMOS QUAD when both clock control inputs (G1 and G2) are D-TYPE REGISTER (3-STATE) fabricated with held low. 2 silicon gate C MOS technology. The reset feature is asynchronous and active high. The stored data are provided on each output This device is composed of a four-bit register including D-TYPE flip-flops and 3-state buffers. only when both output control inputs (M and N) are The four flip-flops are controlled by a common held low, otherwise the outputs go to the clock input (CLOCK) and a common reset input high-impedance state. (CLEAR). Signals applied to the data inputs (D - All inputs are equipped with protection circuits 1 D ) are stored at the respective flip-flops on the against static discharge and transient excess 4 positive going transition of the clock input, only voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/12 Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s) M74HC173 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION 1, 2 M, N Output Enable Input (Active Low) 3, 4, 5, 6 1Q to 4Q 3-State Flip-Flop Outputs 7 CLOCK Clock Input (Low to HIGH, Edge-triggered) 9, 10 G1, G2 Data Enable Inputs (Active Low) 14, 13, 12, 1D to 4D Data Inputs 11 15 CLEAR Asynchronous Master Reset (Active High) 8 GND Ground (0V) 16 V Positive Supply Voltage CC TRUTH TABLE DATA ENABLE OUTPUT CONTROL CLEAR CLOCK Dn Qn G1 G2 M N XXXXX H X Z XXXXXX HZ H XXXX L L L L XXX L L Q0 LHXXLLQ0 L XHX L L Q0 LLLHLLH L LLLL LL X : Dont Care Z : High Impedance 2/12 Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s)