Product Summary

The HEF4518BP is a dual 4-bit internally synchronous BCD counter. The counter has an active HIGH clock input (CP0) and an active LOW clock input (CP1), buffered outputs from all four bit positions (O0 to O3) and an active HIGH overriding asynchronous master reset input (MR). The applications of HEF4518BP include Multistage synchronous counting, Multistage asynchronous counting and Frequency dividers.

Parametrics

HEF4518BP absolute maximum ratings: (1)supply voltage: -0.5 to +18 V; (2)input clamping current: ±10 mA at VI < -0.5 V or VI > VDD + 0.5 V; (3)input voltage: -0.5 to VDD + 0.5 V; (4)output clamping current VO < -0.5 V or VO > VDD + 0.5 V - ±10 mA; (5)input/output current - ±10 mA; (6)supply current - 50 mA; (7)storage temperature: -65 to +150 ℃; (8)ambient temperature: -40 to +85 ℃; (9)total power dissipation: DIP16 package: 750 mW, SO16 package: 500 mW; (10)power dissipation: 100 mW.

Features

HEF4518BP features: (1)Tolerant of slow clock rise and fall times; (2)Fully static operation; (3)5 V, 10 V, and 15 V parametric ratings; (4)Standardized symmetrical output characteristics; (5)Operates across the full industrial temperature range -40 ℃ to +85 ℃; (6)Complies with JEDEC standard JESD 13-B.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
HEF4518BP,652
HEF4518BP,652

NXP Semiconductors

Counter ICs DUAL BCD COUNTER

Data Sheet

0-1: $0.40
1-25: $0.35
25-100: $0.31
100-250: $0.27
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
HEF4000B
HEF4000B

Other


Data Sheet

Negotiable 
HEF4000BP,652
HEF4000BP,652

NXP Semiconductors

Gates (AND / NAND / OR / NOR) DUAL 3-INPUT NOR

Data Sheet

0-1: $0.33
1-25: $0.24
25-100: $0.21
100-250: $0.18
HEF4000BT,652
HEF4000BT,652

NXP Semiconductors

Gates (AND / NAND / OR / NOR) DUAL 3-INPUT NOR

Data Sheet

0-1: $0.33
1-25: $0.24
25-100: $0.21
100-250: $0.18
HEF4000BT,653
HEF4000BT,653

NXP Semiconductors

Gates (AND / NAND / OR / NOR) DUAL 3-INPUT NOR

Data Sheet

0-1: $0.29
1-25: $0.25
25-100: $0.21
100-250: $0.19
HEF4001B
HEF4001B

Other


Data Sheet

Negotiable 
HEF4001BP,652
HEF4001BP,652

NXP Semiconductors

Gates (AND / NAND / OR / NOR) QUAD 2-IN NOR GATE

Data Sheet

0-1: $0.31
1-25: $0.20
25-100: $0.17
100-250: $0.14