MC14521B

更新时间： 2024-09-08 22:58:11

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
12页	223K
描述
24-Stage Frequency Divider

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中文翻译

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数据手册

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MC14521B 数据手册

The MC14521B consists of a chain of 24 flip–flops with an input

circuit that allows three modes of operation. The input will function as

a crystal oscillator, an RC oscillator, or as an input buffer for an

external oscillator. Each flip–flop divides the frequency of the

previous flip–flop by two, consequently this part will count up to 2

http://onsemi.com

16,777,216. The count advances on the negative going edge of the

clock. The outputs of the last seven–stages are available for added

flexibility.

MARKING

DIAGRAMS

• All Stages are Resettable

• Reset Disables the RC Oscillator for Low Standby Power Drain

PDIP–16

P SUFFIX

CASE 648

MC14521BCP

AWLYYWW

• RC and Crystal Oscillator Outputs Are Capable of Driving External

Loads

• Test Mode to Reduce Test Time

• V ′ and V ′ Pins Brought Out on Crystal Oscillator Inverter to

SOIC–16

D SUFFIX

CASE 751B

Allow the Connection of External Resistors for Low–Power

Operation

14521B

AWLYWW

• Supply Voltage Range = 3.0 Vdc to 18 Vdc

• Capable of Driving Two Low–power TTL Loads or One Low–power

Schottky TTL Load over the Rated Temperature Range.

SOEIAJ–16

F SUFFIX

CASE 966

MC14521B

AWLYWW

MAXIMUM RATINGS (Voltages Referenced to V ) (Note 2.)

= Assembly Location

Symbol

Parameter

Value

Unit

WL or L = Wafer Lot

YY or Y = Year

DC Supply Voltage Range

–0.5 to +18.0

WW or W = Work Week

V , V

in out

Input or Output Voltage Range

(DC or Transient)

–0.5 to V + 0.5

I , I

in out

Input or Output Current

(DC or Transient) per Pin

±10

ORDERING INFORMATION

Device

Package

PDIP–16

SOIC–16

Shipping

Power Dissipation,

per Package (Note 3.)

500

MC14521BCP

MC14521BD

2000/Box

48/Rail

Ambient Temperature Range

Storage Temperature Range

–55 to +125

–65 to +150

260

°C

stg

MC14521BDR2

SOIC–16 2500/Tape & Reel

Lead Temperature

MC14521BF

SOEIAJ–16

See Note 1.

(8–Second Soldering)

2. Maximum Ratings are those values beyond which damage to the device

may occur.

3. Temperature Derating:

MC14521BFEL

MC14521BFR2

Plastic “P and D/DW” Packages: – 7.0 mW/ C From 65 C To 125 C

1. For ordering information on the EIAJ version of

the SOIC packages, please contact your local

ON Semiconductor representative.

This device contains protection circuitry to guard against damage due to high

static voltages or electric fields. However, precautions must be taken to avoid

applications of any voltage higher than maximum rated voltages to this

high–impedancecircuit. For proper operation, V and V should be constrained

out

to the range V

(V or V

)

out

Unused inputs must always be tied to an appropriate logic voltage level (e.g.,

either V or V ). Unused outputs must be left open.

Semiconductor Components Industries, LLC, 2000

Publication Order Number:

March, 2000 – Rev. 3

MC14521B/D

12 3 4 5 6 7...12

中文翻译

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与MC14521B相关器件

型号	品牌	获取价格	描述	数据表
MC14521B_06	ONSEMI	获取价格	24−Stage Frequency Divider
MC14521BAL/59866	MOTOROLA	获取价格	IC,PRESCALER,DIP,16PIN,CERAMIC
MC14521BALS	MOTOROLA	获取价格	Prescaler, CMOS, CDIP16
MC14521BCLD	MOTOROLA	获取价格	IC,PRESCALER,DIP,16PIN,CERAMIC
MC14521BCLDS	MOTOROLA	获取价格	Prescaler, CMOS, CDIP16
MC14521BCP	ONSEMI	获取价格	24-Stage Frequency Divider
MC14521BCPDS	MOTOROLA	获取价格	暂无描述
MC14521BCPG	ONSEMI	获取价格	24−Stage Frequency Divider
MC14521BCPS	MOTOROLA	获取价格	Prescaler, CMOS, PDIP16
MC14521BD	ONSEMI	获取价格	24-Stage Frequency Divider

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