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CMOS 四路时钟控制“D”锁存器
Number of channels (#) 4
Technology Family CD4000
Supply voltage (Min) (V) 3
Supply voltage (Max) (V) 18
Input type Standard CMOS
Output type CMOS
Clock Frequency (Max) (MHz) 8
IOL (Max) (mA) 2.4
IOH (Max) (mA) -2.4
ICC (Max) (uA) 600
Features Standard speed (tpd > 50ns), High speed (tpd 10-50ns), Partial power down (Ioff)
  • Clock polarity control
  • Q and Q\ outputs
  • Common Clock
  • Low power TTL compatible
  • Standardized, symmetrical output characteristics
  • 100% tested for quiescent current at 20 V
  • Maximum input current of 1 μA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C
  • 5-V, 10-V, and 15-V parametric ratings
  • Noise margin (full package-temperature range) =
    ????????1 V at VDD = 5 V
    ????????2 V at VDD = 10 V
    ?????2.5 V at VDD = 15 V
  • Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of ’B’ Series CMOS Devices"
  • Applications:
    • Buffer storage
    • Holding register
    • General digital logic

Data sheet acquired from Harris Semiconductor

CD4042B types contain four latch circuits, each strobed by a common clock. Complementary buffered outputs are available from each circuit. The impedance of the n- and p-channel output devices is balanced and all outputs are electrically identical.

Information present at the data input is transferred to outputs Q and Q\ during the CLOCK level which is programmed by the POLARITY input. For POLARITY = 0 the transfer occurs during the 0 CLOCK level and for POLARITY = 1 the transfer occurs during the 1 CLOCK level. The outputs follow the data input providing the CLOCK and POLARITY levels defined above are present. When a CLOCK transition occurs (positive for POLARITY = 0 and negative for POLARITY = 1) the information present at the input during the CLOCK transition is retained at the output until an opposite CLOCK transition occurs.

The CD4042B types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffixes), 16-lead dual-in-line plastic package (E suffix), 16-lead small-outline packages (D, DR, DT, DW, DWR, and NSR suffixes), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).