74LCX16374 LOW VOLTAGE CMOS 16-BIT D-TYPE FLIP-FLOP (3-STATE) WITH 5V TOLERANT INPUTS AND OUTPUTS 5V TOLERANT INPUTS AND OUTPUTS HIGH SPEED : f = 150MHz (MIN.) at V =3V MAX CC POWER DOWN PROTECTION ON INPUTS AND OUTPUTS SYMMETRICAL OUTPUT IMPEDANCE: TSSOP I = I = 24mA (MIN) at V =3V OH OL CC PCI BUS LEVELS GUARANTEED AT 24 mA BALANCED PROPAGATION DELAYS: t t ORDER CODES PLH PHL OPERATING VOLTAGE RANGE: PACKAGE TUBE T & R V (OPR) = 2.0V to 3.6V (1.5V Data CC TSSOP 74LCX16374TTR Retention) PIN AND FUNCTION COMPATIBLE WITH PIN CONNECTION 74 SERIES 16374 LATCH-UP PERFORMANCE EXCEEDS 500mA (JESD 17) ESD PERFORMANCE: HBM > 2000V (MIL STD 883 method 3015) MM > 200V DESCRIPTION The 74LCX16374 is a low voltage CMOS 16 BIT D-TYPE FLIP-FLOP with 3 STATE OUTPUTS NON INVERTING fabricated with sub-micron 2 silicon gate and double-layer metal wiring C MOS technology. It is ideal for low power and high speed 3.3V applications it can be interfaced to 5V signal environment for both inputs and outputs. These 16 bit D-TYPE flip-flops are controlled by two clock inputs (nCK) and two output enable in- puts(nOE). On the positive transition of the (nCK), the nQ outputs will be set to the logic state that were setup at the nD inputs. While the (nOE) input is low, the 8 outputs (nQ) will be in a normal state (high or low logic level) and while high level the outputs will be in a high impedance state. Any output control does not affect the internal op- eration of flip flops that is, the old data can be re- tained or the new data can be entered even while the outputs are off. It has same speed performance at 3.3V than 5V AC/ACT family, combined with a lower power consumption. All inputs and outputs are equipped with protec- tion circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. February 2003 1/10 Obsolete Product(s) - Obsolete Product(s)74LCX16374 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION IEC LOGIC SYMBOLS PIN No SYMBOL NAME AND FUNCTION 1 1OE 3 State Output Enable Input (Active LOW) 2, 3, 5, 6, 8, 9, 1Q0 to 1Q7 3-State Outputs 11, 12 13, 14, 16, 17, 2Q0 to 2Q7 3-State Outputs 19, 20, 22, 23 24 2OE 3 State Output Enable Input (Active LOW) 25 2CK Latch Enable Input 36, 35, 33, 32, 2D0 to 2D7 Data Inputs 30, 29, 27, 26 47, 46, 44, 43, 1D0 to 1D7 Data Inputs 41, 40, 38, 37 48 1CK Latch Enable Input 4, 10, 15, 21, GND Ground (0V) 28, 34, 39, 45 7, 18, 31, 42 V Positive Supply Voltage CC TRUTH TABLE INPUTS OUTPUT OE CK D Q HX X Z L X NO CHANGE* LL L LH H X : Dont Care Z : High Impedance 2/10 Obsolete Product(s) - Obsolete Product(s)