CMOS Binary Rate MultiplierCD4089B is a lowpower 4bit digital rate multiplier that provides an output pulse rate that is the clockinputpulse rate multiplied by 1/16 times the binary input. For example, when the binary input number is 13, there will be 13 output pulses for every 16 input pulses. This device may be used in conjunction with an up/down Counter and control Logic used to perform arithmetic operations (adds, subtract, divide, raise to a power), solve algebraic and differential equations, generate natural logarithms and trigometric functions, A/D and D/A conversions, and frequency division.
For words of more than 4bits, CD4089B devices may be cascaded in two different mode: an Add mode and a Multiply mode (see Figs. 14 and 15). In the Add mode some of the gaps left by the more significant unit at the count of 15 are filled in by the less significant units. For example, when two units are cascaded in the Add mode and programmed to 11 and 13, respectively, the more significant unit will have 11 output pulses for every 16 input pulses and the other unit will have 13 output pulses for every 256 input pulses for a total of 11 13 189 + = 16 256 256 In the Multiply mode the fraction programmed into the first rate multipliers multiplied by the fraction programmed into the second multiplier. Thus the output rate will be 11 13 143 = 16 16 256 The CD4089B has an internal synchronous 4bit Counter which, together with one of the four binary input bits, produces pulse trains as shown in Fig. 2. If more than one binary input bit is high, the resulting pulse train a combination of the separate pulse trains as shown in Fig. 2. The CD4089B types are supplied in 16lead hermetic dualinline ceramic packages (F3A suffix), 16lead dualinline plastic packages (E suffix), 16lead smalloutline packages (NSR suffix), and 16lead thin shrink smalloutline packages (PW and PWR suffixes). By Texas Instruments 
Part  Manufacturer  Description  Datasheet  Samples  

CD4089BPWR  Texas Instruments  CMOS Binary Rate Multiplier 16TSSOP 55 to 125  
CD4089BEE4  Texas Instruments  CMOS Binary Rate Multiplier 16PDIP 55 to 125  
CD4089BNSR  Texas Instruments  CMOS Binary Rate Multiplier 16SO 55 to 125  
CD4089BPWE4  Texas Instruments  IC 4000/14000/40000 SERIES, SYN NEGATIVE EDGE TRIGGERED 4BIT UP BINARY COUNTER, PDSO16, GREEN, PLASTIC, TSSOP16, Counter  
CD4089BPWG4  Texas Instruments  4000/14000/40000 SERIES, SYN NEGATIVE EDGE TRIGGERED 4BIT UP BINARY COUNTER, PDSO16, GREEN, PLASTIC, TSSOP16  
CD4089BE  Texas Instruments  CMOS Binary Rate Multiplier 16PDIP 55 to 125  
CD4089BPWRG4  Texas Instruments  4000/14000/40000 SERIES, SYN NEGATIVE EDGE TRIGGERED 4BIT UP BINARY COUNTER, PDSO16, GREEN, PLASTIC, TSSOP16  
CD4089BPWRE4  Texas Instruments  4000/14000/40000 SERIES, SYN NEGATIVE EDGE TRIGGERED 4BIT UP BINARY COUNTER, PDSO16, GREEN, PLASTIC, TSSOP16  
CD4089BNSRE4  Texas Instruments  4000/14000/40000 SERIES, SYN NEGATIVE EDGE TRIGGERED 4BIT UP BINARY COUNTER, PDSO16, GREEN, PLASTIC, SOP16  
CD4089BNSRG4  Texas Instruments  CMOS Binary Rate Multiplier 16SO 55 to 125 

CD4089B PbFree  CD4089B Cross Reference  CD4089B Schematic  CD4089B Distributor 
CD4089B Application Notes  CD4089B RoHS  CD4089B Circuits  CD4089B footprint 