CD4527BNSR

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CD4527BNSR

CMOS BCD Rate Multiplier

Packaging

Package | PIN: NS | 16
Temp: M (-55 to 125)
Carrier: Cut Tape
Qty Price
1-9 $0.64
10-24 $0.56
25-99 $0.51
100-249 $0.43
250-499 $0.39
500-749 $0.30
750-999 $0.23
1000+ $0.20

Features

  • Cascadable in multiples of 4-bits
  • Set to "9" input and "9" detect output
  • 100% test for quiescent current at 20 V
  • 5-V, 10-V, and 15-V parametric ratings
  • Standardized, symmetrical output characteristics
  • Maximum input current of 1 µA at 18 V over full package-temperature range; 100nA at 18V and 25°C
  • 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
    • Numerical control
    • Instrumentation
    • Digital filtering
    • Frequency synthesis

Texas Instruments  CD4527BNSR

CD4527B is a low-power 4-bit digital rate multiplier that provides an output-pulse rate which is the clock-input-pulse rate multiplied by 1/10 times the BCD input. For example, when the BCD input is 8, there will be 8 output pulses for every 10 input pulses. This device may be used to perform arithmetic operations (add, subtract, divide, raise to a power), solve algebraic and differential equations, generate natural logarithms and trigonometric functions, A/D and D/A conversion, and frequency division.

For fractional multipliers with more than one digit, CD4527B devices may be cascaded in two different modes: the Add mode and the Multiply mode. (See Figs. 12 and 15). In the Add Mode,


Output Rate =
(Clock Rate) [0.1 BCD1 + 0.01 BCD2 + 0.001 BCD3 + . . . ]

In the Multiply mode, the fraction programmed into the first rate multiplier is multiplied by the fraction programmed into the second one,

9 4 36
e.g. × = or 36 output
10 10 100

pulses for every 100 clock input pulses.

The CD4527B types are supplied in 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (NSR suffix), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).