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SN54LS248 PDF预览

SN54LS248

更新时间: 2024-01-23 23:26:03
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA 驱动器
页数 文件大小 规格书
8页 283K
描述
BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS

SN54LS248 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:DFP, FL16,.3Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.67其他特性:RIPPLE BLANKING; LAMP TEST INPUT
系列:LS输入调节:STANDARD
JESD-30 代码:R-CDFP-F16长度:10.2 mm
负载电容(CL):15 pF逻辑集成电路类型:SEVEN SEGMENT DECODER/DRIVER
功能数量:1端子数量:16
最高工作温度:125 °C最低工作温度:-55 °C
输出特性:OPEN-COLLECTOR WITH PULLUP输出极性:TRUE
封装主体材料:CERAMIC, METAL-SEALED COFIRED封装代码:DFP
封装等效代码:FL16,.3封装形状:RECTANGULAR
封装形式:FLATPACK峰值回流温度(摄氏度):NOT SPECIFIED
电源:5 V最大电源电流(ICC):38 mA
传播延迟(tpd):100 ns认证状态:Not Qualified
座面最大高度:2.03 mm子类别:Decoder/Drivers
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):4.5 V
标称供电电压 (Vsup):5 V表面贴装:YES
技术:TTL温度等级:MILITARY
端子形式:FLAT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:NOT SPECIFIED
宽度:6.73 mm

SN54LS248 数据手册

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SN54/74LS247  
SN54/74LS248  
SN54/74LS249  
BCD-TO-SEVEN-SEGMENT  
DECODERS/DRIVERS  
The SN54/74LS247 thru SN54/74LS249 are BCD-to-Seven-Segment  
Decoder/Drivers.  
The LS247 and LS248 are functionally and electrically identical to the LS47  
and LS48 with the same pinout configuration. The LS249 is a 16-pin version  
of the 14-pin LS49 and includes full functional capability for lamp test and  
ripple blanking which was not available in the LS49.  
BCD-TO-SEVEN-SEGMENT  
DECODERS/DRIVERS  
LOW POWER SCHOTTKY  
Thecomposition of all characters, except the 6 and 9 are identical between  
the LS247, 248, 249 and the LS47, 48 and 49. The LS47 thru 49 compose  
the  
and  
without tails, the LS247 thru 249 compose the and with  
the tails. The LS247 has active-low outputs for direct drive of indicators. The  
LS248 and 249 have active-high outputs for driving lamp buffers.  
J SUFFIX  
CERAMIC  
All types feature a lamp test input and have full ripple-blanking input/output  
controls. On all types an automatic leading and/or trailing-edge zero-blanking  
control (RBI and RBO) is incorporated and an overriding blanking input (BI)  
is contained which may be used to control the lamp intensity by pulsing or to  
inhibit the output’s lamp test may be performed at any time when the BI/RBO  
node is at high level. Segment identification and resultant displays are shown  
below. Display pattern for BCD input counts above 9 are unique symbols to  
authenticate input conditions.  
CASE 620-09  
16  
1
N SUFFIX  
PLASTIC  
CASE 648-08  
16  
1
LS247  
Open-Collector Outputs Drive Indicators Directly  
Lamp-Test Provision  
Leading/Trailing Zero Suppression  
D SUFFIX  
SOIC  
CASE 751B-03  
16  
1
LS248  
Internal Pull-Ups Eliminate Need for External Resistors  
Lamp-Test Provision  
Leading/Trailing Zero Suppression  
ORDERING INFORMATION  
LS249  
SN54LSXXXJ  
Ceramic  
Open-Collector Outputs  
Lamp-Test Provision  
Leading/Trailing Zero Suppression  
SN74LSXXXN Plastic  
SN74LSXXXDW SOIC  
NUMERICAL DESIGNATIONS AND RESULTANT DISPLAYS  
SEGMENT  
IDENTIFICATION  
FAST AND LS TTL DATA  
5-402  

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