CD4527B

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CMOS BCD Rate Multiplier

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Data sheet

document-pdfAcrobat CD4527B TYPES datasheet (Rev. C)

CD4527B

ACTIVE

Data sheet

Order now

Product details

Function

Rate multiplier

Bits (#)

4

Technology family

CD4000

Supply voltage (min) (V)

3

Supply voltage (max) (V)

18

Input type

Standard CMOS

Output type

Push-Pull

Features

Standard speed (tpd > 50ns)

Operating temperature range (°C)

-55 to 125

Rating

Catalog

Function

Rate multiplier

Bits (#)

4

Technology family

CD4000

Supply voltage (min) (V)

3

Supply voltage (max) (V)

18

Input type

Standard CMOS

Output type

Push-Pull

Features

Standard speed (tpd > 50ns)

Operating temperature range (°C)

-55 to 125

Rating

Catalog

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 V_DD = 5 V
      2 V at V_DD = 10 V
     2.5 V at V_DD = 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

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 V_DD = 5 V
      2 V at V_DD = 10 V
     2.5 V at V_DD = 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

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).

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).

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