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M74HCT564 数据表(PDF) 1 Page - STMicroelectronics |
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M74HCT564 数据表(HTML) 1 Page - STMicroelectronics |
1 / 13 page M54/74HCT564 M54/74HCT574 September 1993 HCT564 INVERTING - HCT574 NON INVERTING OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT B1R (Plastic Package) ORDER CODES : M54HCTXXXF1R M74HCTXXXM1R M74HCTXXXB1R M74HCTXXXC1R F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) PIN CONNECTION (top view) . HIGH SPEED fMAX = 62 MHz (TYP.) AT VCC =5 V . LOW POWER DISSIPATION ICC =4 µA (MAX.) AT TA =25 °C . COMPATIBLE WITH TTL OUTPUTS VIH = 2V (MIN.) VIL = 0.8V (MAX) . OUTPUT DRIVE CAPABILITY 15 LSTTL LOADS . SYMMETRICAL OUTPUT IMPEDANCE IOL = IOH= 6 mA (MIN.) . BALANCED PROPAGATION DELAYS tPLH =tPHL . PIN AND FUNCTION COMPATIBLE WITH 54/74LS564/574 DESCRIPTION The M54/74HCT564 and M54HCT574 are high speed CMOS OCTAL D-TYPE FLIP FLOP WITH 3- STATE OUTPUTS fabricated in silicon gate C 2MOS technology. They have the same high speed per- formance of LSTTL combined with true CMOS low power comsuption. These 8-bit D-type flip-flops are controlled by a clock input (CK) and an ouput enable input (OE). On the positive transition of the clock, the Q outputs will be set to the logic state that were setup at the D inputs (HCT574) or their complements (HCT564). While the OE input is low, the eight outputs will be in a normal logic state (high or low logic level), and while high level, the outputs will be in a high imped- ance state. The output control does not affect the in- ternal 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. The application engineer has a choice of combination of inverting and non-in- verting outputs. The 3-state output configuration and the wide choice of outline make bus-organized systems simple. All inputs are equipped with protec- tion circuits against static discharge and transient excess voltage. This integrated circuit has input and output characteristics that are fully compatible with 54/74 LSTTL logic families. M54/74HCT devices are designed to directly interface HSC 2MOS sys- tems with TTL and NMOS components. They are also plug in replacements for LSTTL devices giving a reduction of power consumption. HCT564 HCT574 HCT564 HCT574 1/13 |
类似零件编号 - M74HCT564 |
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类似说明 - M74HCT564 |
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