Specification	CD4518BF3A

Count Rate	8 MHz
Direction	Up
Logic Type	BCD Counter
Mounting Type	Through Hole
Number of Bits per Element	4
Number of Elements	2
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-55 °C
Package / Case	7.62 mm, 0.3 in
Package / Case	16-CDIP
Reset	Asynchronous
Supplier Device Package	16-CDIP
Timing	Synchronous
Trigger Type	Negative, Positive
Voltage - Supply [Max]	18 V
Voltage - Supply [Min]	3 V

CD4518B-MIL Series

CMOS Dual BCD Up-Counter

Part	Trigger Type	Supplier Device Package	Voltage - Supply [Max]	Voltage - Supply [Min]	Direction	Reset	Mounting Type	Count Rate	Number of Bits per Element	Number of Elements	Logic Type	Package / Case	Package / Case	Timing	Operating Temperature [Max]	Operating Temperature [Min]
Texas Instruments CD4518BF3A	Negative Positive	16-CDIP	18 V	3 V	Up	Asynchronous	Through Hole	8 MHz	4	2	BCD Counter	0.3 in 7.62 mm	16-CDIP	Synchronous	125 °C	-55 °C

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Arrow	N/A	25	$ 19.94
Texas Instruments	TUBE	1	$ 19.81
		100	$ 17.31
		250	$ 13.34
		1000	$ 11.94

Description

General part information

CD4518B-MIL Series

CD4518 Dual BCD Up-Counter and CD4520 Dual Binary Up-Counter each consist of two identical, internally synchronous 4-stage counters. The counter stages are D-type flip-flops having interchangeable CLOCK and ENABLE lines for incrementing on either the positive-going or negative-going transition. For single-unit operation the ENABLE input is maintained high and the counter advances on each positive-going transition of the CLOCK. The counters are cleared by high levels on their RESET lines.

The counter can be cascaded in the ripple mode by connecting Q4 to the enable input of the subsequent counter while the CLOCK input of the latter is held low.

The CD4518B and CD4520B 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, and NSR suffixes), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).

Documents

Technical documentation and resources

CD4518B, CD4520B TYPES datasheet (Rev. D)

Data sheet