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參數(shù)資料
| 型號(hào)： | SN74LS48N |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | BCD TO 7-SEGMENT DECODER |
| 中文描述： | LS SERIES, SEVEN SEGMENT DECODER/DRIVER, TRUE OUTPUT, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 1/3頁 |
| 文件大?。?/td> | 100K |
| 代理商： | SN74LS48N |
5-59
FAST AND LS TTL DATA
BCD TO 7-SEGMENT
DECODER
The SN54/74LS48 is a BCD to 7-Segment Decoder consisting of NAND
gates, input buffers and seven AND-OR-INVERT gates. Seven NAND gates
and one driver are connected in pairs to make BCD data and its complement
available to the seven decoding AND-OR-INVERT gates. The remaining
NAND gate and three input buffers provide lamp test, blanking input/ripple-
blanking input for the LS48.
The circuit accepts 4-bit binary-coded-decimal (BCD) and, depending on
the state of the auxiliary inputs, decodes this data to drive other components.
The relative positive logic output levels, as well as conditions required at the
auxiliary inputs, are shown in the truth tables.
The LS48 circuit incorporates automatic leading and/or trailing edge
zero-blanking control (RBI and RBO). Lamp Test (LT) may be activated any
time when the BI/RBO node is HIGH. Both devices contain an overriding
blanking input (BI) which can be used to control the lamp intensity by varying
the frequency and duty cycle of the BI input signal or to inhibit the outputs.
Lamp Intensity Modulation Capability (BI/RBO)
Internal Pull-Ups Eliminate Need for External Resistors
Input Clamp Diodes Eliminate High-Speed Termination Effects
14
13
12
11
10
9
1
B
2
C
3
LT BI/RBO RBI
4
5
6
D
VCC
16
7
A
15
8
f
g
a
b
c
d
e
GND
CONNECTION DIAGRAM DIP
(TOP VIEW)
LOGIC DIAGRAM
INPUT
BLANKING INPUT OR
RIPPLE-BLANKING
OUTPUT
RIPPLE-BLANKING
INPUT
LAMP-TEST
INPUT
A
B
C
D
a
b
c
d
e
f
g
OUTPUT
SN54/74LS48
BCD TO 7-SEGMENT
DECODER
LOW POWER SCHOTTKY
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
16
1
16
1
ORDERING INFORMATION
SN54LSXXJ
SN74LSXXN
SN74LSXXD
Ceramic
Plastic
SOIC
16
1
D SUFFIX
SOIC
CASE 751B-03
LOGIC SYMBOL
VCC = PIN 16
GND = PIN 8
7
1
2
6
3
5
13 12 11 10 9 15 14
4
A
B C
D LT RBI
a
b
c
d
e
f
g
BI/
RBO
SN54/74LS48
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN74LS490D | DUAL DECADE COUNTER |
| SN54LS490 | Octal Buffer/Line Driver, 3 State; Package: TSSOP 20 LEAD; No of Pins: 20; Container: Tape and Reel; Qty per Container: 2500 |
| SN54LS490J | DUAL DECADE COUNTER |
| SN74LS490N | 1A, 5V,±4% Tolerance, Negative Voltage Regulator, Ta = 0°C to +125&x0176;C; Package: TO-220, SINGLE GAUGE; No of Pins: 3; Container: Rail; Qty per Container: 50 |
| SN74LS51D | 1A, 8V,±2% Tolerance, Negative Voltage Regulator, Ta = 0°C to +125°C; Package: TO-220, SINGLE GAUGE; No of Pins: 3; Container: Rail; Qty per Container: 50 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74LS490N | 制造商:Motorola Inc 功能描述: 制造商:Panasonic Industrial Company 功能描述:IC 制造商:Rochester Electronics LLC 功能描述: |
| SN74LS4N | 制造商:Motorola Inc 功能描述: |
| SN74LS508N | 制造商:Texas Instruments 功能描述: |
| SN74LS51D | 功能描述:邏輯門 AND-OR-Invert Gate RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時(shí)間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel |
| SN74LS51DE4 | 功能描述:邏輯門 AND-OR-Invert Gate RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時(shí)間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel |
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