Product Information

HEF4521BP

HEF4521BP electronic component of NXP

Datasheet
IC, 4000 LOCMOS, 4521, DIP16, 15V
Manufacturer: NXP
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



Price (USD)

1: USD 1.9432 ea
Line Total: USD 1.94

0 - Global Stock
MOQ: 1  Multiples: 1
Pack Size: 1

 More Buying Options & Price Grid(s)

Availability Price Quantity
0 - WHS 1


Ships to you between Thu. 09 May to Wed. 15 May

MOQ : 1
Multiples : 1
1 : USD 1.9432
10 : USD 1.6273
100 : USD 1.4368
500 : USD 1.3495
1000 : USD 1.2225
2500 : USD 1.1431

Read More Specifications

     
Manufacturer
Product Category
Packaging
Counter Type
Clock Frequency
Count Maximum
Logic Case Style
No Of Pins
Supply Voltage Min
Supply Voltage Max
Operating Temperature Min
Operating Temperature Max
Msl
Svhc
Base Number
Device Marking
Logic Function Number
Logic Ic Base Number
Logic Ic Family
Logic Ic Function
No Of Gates
Operating Temperature Range
Supply Voltage
Supply Voltage Range
Termination Type
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Additional Infomation About Product

HEF4521B 24-stage frequency divider and oscillator Rev. 6 21 November 2011 Product data sheet 1. General 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 (A2 to Y2) functions as: a crystal oscillator, an input buffer for an external oscillator or in combination with A1 as an RC oscillator. The crystal oscillator operates in Low-power mode when pins V and V are supplied via external resistors. SS1 DD1 Each flip-flop divides the frequency of the previous flip-flop by two, consequently the 24 HEF4521B counts up to 2 = 16777216. The counting advances on the HIGH-to-LOW 18 24 transition of the clock (A2). The outputs from each of the last seven stages (2 to 2 ) are available for additional flexibility. It operates over a recommended V power supply range of 3 V to 15 V referenced to V DD SS (usually ground). Unused inputs must be connected to V , V , or another input. DD SS 2. Features and benefits Low power crystal oscillator operation Fully static operation 5 V, 10 V, and 15 V parametric ratings Standardized symmetrical output characteristics Specified from 40 C to +85 C Complies with JEDEC standard JESD 13-B 3. Ordering information Table 1. Ordering information All types operate from 40 C to +85 C. Type number Package Name Description Version HEF4521BP DIP16 plastic dual in-line package 16-leads (300 mil) SOT38-4 HEF4521BT SO16 plastic small outline package 16 leads body width 3.9 mm SOT109-1HEF4521B NXP Semiconductors 24-stage frequency divider and oscillator 4. Functional diagram 5 4 2 9 V Y2 MR A1 DD1 A2 6 CP STAGES 1 to 8 C D Q8 V SS1 3 CP STAGES 9 to 16 C D Q16 CP STAGES 17 to 24 C D Q24 Q18 Q19 Q20 Q21 Q22 Q23 Y1 1 101112131415 7 001aae708 Fig 1. Functional diagram V DD1 V DD A2 to FFs to logic V SS V SS1 Y2 001aae711 Fig 2. Schematic diagram of clock input circuitry HEF4521B All information provided in this document is subject to legal disclaimers. NXP B.V. 2011. All rights reserved. Product data sheet Rev. 6 21 November 2011 2 of 18

HS Compliance

Tariff Desc

8542.39.23 No ..Linear/analogue and peripheral integrated circuits, timers, voltage regulators, A/D and D/A converters, telecommunication and modem integrated circuits, other than board level products Free

Electronic integrated circuits- Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits

NXP may also be referenced as

FR9
Freescale
FREESCALE SEMI
Freescale Semicon
FREESCALE SEMICONDUC
Freescale Semiconductor
Freescale Semiconductor - NXP
NXP
NXP Freescale
NXP (FREESCALE)
NXP / Freescale
NXP SEMI
NXP Semicon
NXP SEMICONDUCTOR
NXP Semiconductors
NXP USA Inc.
PH3
PHI

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