74AC374 Datasheet | STMicroelectronics

DESCRIPTION .. The output control does not affect the internal The AC374 is an advanced high-speed CMOS operation of flip flops; that is, the old data can be OCTAL D-TYPE FLIP FLOP with 3 STATE retained or the new data can be entered even OUTPUT NON INVERTING fabricated with while the outputs are off. sub-micron silicon gate and double-layer metal 2 All inputs and outputs are equipped with wiring C MOS technology. It is ideal for low protection circuits against static discharge, giving power applications mantaining high speed them 2KV ESD immunity and transient excess operation similar to equivalent Bipolar Schottky voltage. TTL. These 8 bit D-Type flip-flops are controlled by a s HIGH SPEED: f MAX = 270 MHz (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 8 µA (MAX.) at TA = 25 o C HIGH NOISE IMMUNITY: VNIH = VNIL = 28% VCC (MIN.) 50Ω TRANSMISSION LINE DRIVING CAPABILITY SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24 m A (MIN) BALANCED PROPAGATION DELAYS: t PLH ≅ t PHL OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V PIN AND FUNCTION PATIBLE WITH 74 SERIES 374 IMPROVED LATCH-UP IMMUNITY B M (Plastic Package) (Micro Package) ORDER CODES : 74AC374B 74AC374M PIN CONNECTION AND IEC LOGIC SYMBOLS April 1997 1/10 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 1 2, 5, 6, 9, 12, 15, 16, 19 3, 4, 7, 8, 13, 14, 17, 18 11 10 20 SYMBOL OE Q0 to Q7 NAME AND F UNCTIO N 3 State Output Enable Input (Active LOW) 3 State Outputs D0 to D7 Data Inputs CLOCK GND VCC Clock Input (LOW to HIGH, edge triggered) Ground (0V) Positive Supply Voltage TRUTH TABLE INPUT S OE H L L L CK X D X X L H OUT PUT S Q Z NO CHANGE L H LOGIC DIAGRAM 2/10 ABSOLUTE MAXIMUM RATINGS Symbol VCC VI VO IIK IOK IO Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Current Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to +7 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 ± 20 ± 20 ± 50 ± 400 -65 to +150 300...