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HD151011 Datasheet

Dual Bcd Programmable Counter With Synchronous Preset Enable

Manufacturer: Hitachi Semiconductor (now Renesas)

HD151011 Overview

Down count at the rise edge of clock (CLK), Down count at the fall edge of clock ( CLK ) Jn data is preset at the rise of clock (CLK), the fall of clock (CLK ) Clock inputs (CLK, CLK ) is CMOS level Clock inputs (CLK, CLK ) is TTL level Initialize of Q = "L" Initialize of Q = "H" H: Irrespective of condition 1. Synchronous preset ( SPE) input can set max 99 down counts.

HD151011 Key Features

  • High speed operation tpd (CLK or CLK to Q) = 35 ns (typ)
  • High output current Fanout of 10 LS TTL Loads
  • Wide operating voltage Vcc = 2 to 6 V
  • Low supply current (Ta = 25°C) Icc (Static) = 4 µA (max)
  • L H PR H X
  • H L SPE H L
  • C/T X X H L
  • Mode Generally count Synchronous preset
  • Initialize of Q output Initialize of Q output Operation Description Down count at the rise edge of clock (CLK), Down cou
  • Pins 18 and 19 are for function test only and should be open

HD151011 Distributor