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参数资料
| 型号： | SN74LS247D |
| 厂商： | MOTOROLA INC |
| 元件分类： | 编、解码器及复用、解复用 |
| 英文描述： | LS SERIES, SEVEN SEGMENT DECODER/DRIVER, INVERTED OUTPUT, PDSO16 |
| 封装： | SOIC-16 |
| 文件页数： | 1/6页 |
| 文件大小： | 129K |
| 代理商： | SN74LS247D |
5-1
FAST AND LS TTL DATA
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.
The composition 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.
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.
LS247
Open-Collector Outputs Drive Indicators Directly
Lamp-Test Provision
Leading/Trailing Zero Suppression
LS248
Internal Pull-Ups Eliminate Need for External Resistors
Lamp-Test Provision
Leading/Trailing Zero Suppression
LS249
Open-Collector Outputs
Lamp-Test Provision
Leading/Trailing Zero Suppression
SEGMENT
IDENTIFICATION
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
a
b
c
d
e
fg
NUMERICAL DESIGNATIONS AND RESULTANT DISPLAYS
SN54/74LS247
SN54/74LS248
SN54/74LS249
BCD-TO-SEVEN-SEGMENT
DECODERS/ DRIVERS
LOW POWER SCHOTTKY
ORDERING INFORMATION
SN54LSXXXJ
Ceramic
SN74LSXXXN
Plastic
SN74LSXXXDW SOIC
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
16
1
16
1
16
1
D SUFFIX
SOIC
CASE 751B-03
相关PDF资料 |
PDF描述 |
|---|---|
| SN74LS247JDS | LS SERIES, SEVEN SEGMENT DECODER/DRIVER, INVERTED OUTPUT, CDIP16 |
| SN74LS248NDS | LS SERIES, SEVEN SEGMENT DECODER/DRIVER, TRUE OUTPUT, PDIP16 |
| SN74LS249JDS | LS SERIES, SEVEN SEGMENT DECODER/DRIVER, TRUE OUTPUT, CDIP16 |
| SN74LS251JS | LS SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, CDIP16 |
| SN74LS251ND | LS SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDIP16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN74LS247DE4 | 功能描述:编码器、解码器、复用器和解复用器 BCD-To-Seven-Segment Decoder/Driver RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| SN74LS247DG4 | 功能描述:编码器、解码器、复用器和解复用器 BCD-To-7-Segment Decoders/Drivers RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| SN74LS247DR | 功能描述:编码器、解码器、复用器和解复用器 BCD-To-Seven-Segment Decoder/Driver RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| SN74LS247DRE4 | 功能描述:编码器、解码器、复用器和解复用器 BCD-To-Seven-Segment Decoder/Driver RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| SN74LS247DRG4 | 功能描述:编码器、解码器、复用器和解复用器 BCD-To-7-Segment Decoders/Drivers RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
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