See datasheet for actual packaging/pinout drawings


Package | PIN:

PW | 16


M (-55 to 125)

ECO Plan:

Green (RoHS & no Sb/Br)


CMOS Presettable Up/Down Counter

TI Store Price:

1 - 9 $ 0.38
10 - 24 $ 0.32
25 - 99 $ 0.31
100 - 249 $ 0.20
250 - 499 $ 0.20
500 - 749 $ 0.19
750 - 999 $ 0.14
1000 - 9999 $ 0.11

Adjust your quantity during checkout

Texas Instruments CD4029BPWR

CD4029B 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 JAN 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 PRESET ENALBE 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 parallel-clocking or a ripple-clocking arrangement as shown in Fig. 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 CD4029B-series types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (M, M96, MT and NSR suffixes), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).

View datasheet
View product folder
Order SummaryEdit >
Subtotal: $0.00
Shipping & Handling: -
Total (USD): $0.00