HD74LV166A Datasheet, PDF (1/16 Pages) Hitachi Semiconductor – Parallel-Load 8-bit Shift Register

HD74LV166A
Parallel-Load 8-bit Shift Register
ADE-205-268 (Z)
1st Edition
March 1999
Description
The HD74LV166A is 8-bit shift register with an output from the last stage. Data may be loaded into the
register either in parallel or in serial form. When the Shift/Load input is low, the data is loaded
asynchronously in parallel. When the Shift/Load input is high, the data is loaded serially on the rising edge
of either clock inhibit or Clock. Clear is asynchronous and active-low.
The 2-input NOR clock may be used either by combining two independent clock sources or by designating
one of the clock inputs to act as a clock inhibit.
Low-voltage and high-speed operation is suitable for the battery-powered products (e.g., notebook
computers), and the low-power consumption extends the battery life.
Features
• V_CC = 2.0 V to 5.5 V operation
• All inputs V_IH (Max.) = 5.5 V (@V_CC = 0 V to 5.5 V)
• All outputs V_O (Max.) = 5.5 V (@V_CC = 0 V)
• Typical V_OL ground bounce < 0.8 V (@V_CC = 3.3 V, Ta = 25°C)
• Typical V_OH undershoot > 2.3 V (@V_CC = 3.3 V, Ta = 25°C)
• Output current ±6 mA (@V_CC = 3.0 V to 3.6 V), ±12 mA (@V_CC = 4.5 V to 5.5 V)