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HEF4521B |
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| Part Number | HEF4521B |
| Manufacturer | NXP (https://www.nxp.com/) |
| Description | The HEF4521B consists of a chain of 24 toggle flip-flops with an overriding asynchronous master reset input (MR), and an input circuit that allows three modes of operation. The single inverting stage ... |
| Features |
tly the HEF4521B will count up to 224 = 16777216. The counting advances on the HIGH to LOW transition of the clock (I2). The outputs of the last seven stages are available for additional flexibility.
Fig.1 Functional diagram.
FAMILY DATA, IDD LIMITS category MSI See Family Specifications
January 1995
2
Philips Semiconductors
Product specification
24-stage frequency divider and oscillator
COUNT CAPACITY
HEF4521B MSI
OUTPUT O18 O19 O20 O21 Fig.2 Pinning diagram. O22 O23 O24 HEF4521BP(N): 16-lead DIL; plastic (SOT38-1) HEF4521BD(F): 16-lead DIL; ceramic (cerdip) (SOT74) HEF4521BT(D): 16-l... |
| Document |
 HEF4521B Data Sheet
PDF 159.35KB |
| Distributor | Stock | Price | Buy |
|---|
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | HEF4521B |
nexperia |
24-stage frequency divider and oscillator |
|
| 2 | HEF4520B |
NXP |
Dual binary counter |
|
| 3 | HEF4520B |
nexperia |
Dual binary counter |
|
| 4 | HEF4520B-Q100 |
nexperia |
Dual binary counter |
|
| 5 | HEF4522B |
NXP |
Programmable 4-bit BCD down counter |
|