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74AC574 Datasheet(PDF) 1 Page - STMicroelectronics |
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74AC574 Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 11 page 1/11 April 2001 s HIGH SPEED: fMAX = 250MHz (TYP.) at VCC = 5V s LOW POWER DISSIPATION: ICC = 4µA(MAX.) at TA=25°C s HIGH NOISE IMMUNITY: VNIH = VNIL = 28 % VCC (MIN.) s 50 Ω TRANSMISSION LINE DRIVING CAPABILITY s SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24mA (MIN) s BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL s OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 574 s IMPROVED LATCH-UP IMMUNITY DESCRIPTION The 74AC574 is an advanced high-speed CMOS OCTAL D-TYPE FLIP-FLOP with 3 STATE OUTPUTS NON INVERTING fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. These 8 bit D-Type Flip-Flop are controlled by a clock input (CK) and an output enable input (OE). On the positive transition of the clock, the Q outputs will be set to the logic that were setup at the D inputs. While the (OE) input is low, the 8 outputs will be in a normal logic state (high or low logic level); while OE is in high level, the outputs will be in a high impedance state. The output control does not affect the internal operation of flip-flops; that is, the old data can be retained or the new data can be entered even while the outputs are off. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. 74AC574 OCTAL D-TYPE FLIP-FLOP WITH 3 STATE OUTPUTS (NON INVERTED) PIN CONNECTION AND IEC LOGIC SYMBOLS ORDER CODES PACKAGE TUBE T & R DIP 74AC574B SOP 74AC574M 74AC574MTR TSSOP 74AC574TTR TSSOP DIP SOP |
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