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).
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | CD4527B TYPES datasheet (Rev. C) | 27 Jun 2003 | |
| Selection guide | Logic Guide (Rev. AB) | 12 Jun 2017 | ||
| Application note | Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) | 02 Dec 2015 | ||
| User guide | LOGIC Pocket Data Book (Rev. B) | 16 Jan 2007 | ||
| Application note | Semiconductor Packing Material Electrostatic Discharge (ESD) Protection | 08 Jul 2004 | ||
| User guide | Signal Switch Data Book (Rev. A) | 14 Nov 2003 | ||
| Application note | Understanding Buffered and Unbuffered CD4xxxB Series Device Characteristics | 03 Dec 2001 |
For additional terms or required resources, click any title below to view the detail page where available.
The 14-24-LOGIC-EVM evaluation module (EVM) is designed to support any logic device that is in a 14-pin to 24-pin D, DW, DB, NS, PW, DYY or DGV package,
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| PDIP (N) | 16 | Ultra Librarian |
| SOP (NS) | 16 | Ultra Librarian |
| TSSOP (PW) | 16 | Ultra Librarian |
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.