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HEF4520B |
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| Part Number | HEF4520B |
| Manufacturer | NXP (https://www.nxp.com/) |
| Description | The HEF4520B is a dual 4-bit internally synchronous binary counter. The counter has an active HIGH clock input (CP0) and an active LOW clock input (CP1), buffered outputs from all four bit positions (... |
| Features |
(O0 to O3 = LOW) independent of CP0, CP1. Schmitt-trigger action in the clock input makes the circuit highly tolerant to slower clock rise and fall times.
Fig.2 Pinning diagram.
HEF4520BP(N): HEF4520BD(F): HEF4520BT(D):
16-lead DIL; plastic (SOT38-1) 16-lead DIL; ceramic (cerdip) (SOT74) 16-lead SO; plastic (SOT109-1) (SOT109-1)
Fig.1 Functional diagram.
( ): Package Designator North America
PINNING CP0A, CP0B CP1A, CP1B MRA, MRB O0A to O3A O0B to O3B clock inputs (L to H triggered) clock inputs (H to L triggered) master reset inputs outputs outputs
FAMILY DATA, IDD LIMITS category MSI... |
| Document |
 HEF4520B Data Sheet
PDF 64.82KB |
| Distributor | Stock | Price | Buy |
|---|
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | HEF4520B |
nexperia |
Dual binary counter |
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| 2 | HEF4520B-Q100 |
nexperia |
Dual binary counter |
|
| 3 | HEF4521B |
NXP |
24-stage frequency divider and oscillator |
|
| 4 | HEF4521B |
nexperia |
24-stage frequency divider and oscillator |
|
| 5 | HEF4522B |
NXP |
Programmable 4-bit BCD down counter |
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