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HEF4521BT,652 PDF预览

HEF4521BT,652

更新时间: 2024-11-03 13:57:03
品牌 Logo 应用领域
恩智浦 - NXP 光电二极管输出元件逻辑集成电路触发器
页数 文件大小 规格书
18页 141K
描述
HEF4521B - 24-stage frequency divider and oscillator SOP 16-Pin

HEF4521BT,652 技术参数

是否Rohs认证:符合生命周期:Transferred
零件包装代码:SOP包装说明:SOP, SOP16,.25
针数:16Reach Compliance Code:compliant
HTS代码:8542.39.00.01风险等级:8.09
Is Samacsys:N其他特性:OUTPUTS FROM LAST 7 STAGES AVAILABLE
计数方向:UP系列:4000/14000/40000
JESD-30 代码:R-PDSO-G16JESD-609代码:e4
长度:9.9 mm负载电容(CL):50 pF
负载/预设输入:NO逻辑集成电路类型:BINARY COUNTER
最大频率@ Nom-Sup:6000000 Hz工作模式:ASYNCHRONOUS
湿度敏感等级:1位数:24
功能数量:1端子数量:16
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP16,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE包装方法:BULK PACK
峰值回流温度(摄氏度):260电源:5/15 V
传播延迟(tpd):1900 ns认证状态:Not Qualified
座面最大高度:1.75 mm子类别:Counters
最大供电电压 (Vsup):15 V最小供电电压 (Vsup):3 V
标称供电电压 (Vsup):5 V表面贴装:YES
技术:CMOS温度等级:INDUSTRIAL
端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30触发器类型:NEGATIVE EDGE
宽度:3.9 mm最小 fmax:35 MHz
Base Number Matches:1

HEF4521BT,652 数据手册

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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 VSS1 and VDD1 are supplied via external resistors.  
Each flip-flop divides the frequency of the previous flip-flop by two, consequently the  
HEF4521B counts up to 224 = 16777216. The counting advances on the HIGH-to-LOW  
transition of the clock (A2). The outputs from each of the last seven stages (218 to 224) are  
available for additional flexibility.  
It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS  
(usually ground). Unused inputs must be connected to VDD, VSS, or another input.  
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  
HEF4521BT  
DIP16  
SO16  
plastic dual in-line package; 16-leads (300 mil)  
plastic small outline package; 16 leads; body width 3.9 mm  
SOT38-4  
SOT109-1  
 
 
 

HEF4521BT,652 替代型号

型号 品牌 替代类型 描述 数据表
HEF4521BT,653 NXP

完全替代

IC FREQ DIVIDER 24STG 16SOIC
HEF4521BP,652 NXP

类似代替

IC FREQ DIVIDER 24STG 16DIP
HEF4521BP NXP

功能相似

24-stage frequency divider and oscillator

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