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Features

? High-Voltage Type (20V Rating)

? Medium Speed Operation: 8MHz (Typ.) at CL = 50pF

and VDD - VSS = 10V

? Multi-Package Parallel Clocking for Synchronous High

Speed Output Response or Ripple Clocking for Slow

Clock Input Rise and Fall Times

? “Preset Enable” and Individual “Jam” Inputs Provided

? Binary or Decade Up/Down Counting

? BCD Outputs in Decade Mode

? 100 Tested for Maximum Quiescent Current at 20V

? 5V, 10V and 15V Parametric Ratings

? Standardized Symmetrical Output Characteristics

? Maximum Input Current of 1?A at 18V Over Full Package-Temperature Range; 100nA at 18V and +25oC

? Noise Margin (Over Full Package Temperature Range):

- 1V at VDD = 5V

- 2V at VDD = 10V

- 2.5V at VDD = 15V

? Meets All Requirements of JEDEC Tentative Standards

No. 13B, “Standard Specifications for Description of

“B” Series CMOS Device’s

Description

CD4029BMS consists of a four-stage binary or BCD-decade up/

down counter with provisions for look-ahead carry in both counting modes. The inputs consist of a single CLOCK, CARRY-IN

(CLOCK ENABLE), BINARY/DECADE, UP/DOWN, PRESET

ENABLE, and four individual JAM signals. Q1, Q2, Q3, Q4 and a

CARRY OUT signal are provided as outputs.

A high PRESET ENABLE signal allows information on the JAM

INPUTS to preset the counter to any state asynchronously with

the clock. A low on each JAM line, when the PRESET-ENABLE

signal is high, resets the counter to its zero count. The counter is

advanced one count at the positive transition of the clock when

the CARRY-IN and PRE-SET ENABLE signals are low.

Advancement is inhibited when the CARRY-IN or PRESET

ENABLE signals are high. The CARRY-OUT signal is normally

high and goes low when the counter reaches its maximum count

in the UP mode or the minimum count in the DOWN mode provided the CARRY-IN signal is low. The CARRY-IN signal in the

low state can thus be considered a CLOCK ENABLE. The

CARRY-IN terminal must be connected to VSS when not in use.

Binary counting is accomplished when the BINARY/DECADE

input is high; the counter counts in the decade mode when the

BINARY/DECADE input is low. The counter counts up when the

UP/DOWN input is high, and down when the UP/DOWN input is

low. Multiple packages can be connected in either a parallelclocking or a ripple-clocking arrangement as shown in Figure 17.

Parallel clocking provides synchronous control and hence faster

response from all counting outputs. Ripple-clocking allows for

longer clock input rise and fall times.

The CD4029BMS is supplied in these 16-lead outline packages:

Braze Seal DIP H4X

Frit Seal DIP H1F

Ceramic Flatpack H6W