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參數(shù)資料
| 型號： | SN74LS390DR2 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 計(jì)數(shù)器 |
| 英文描述： | LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP DECADE COUNTER, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 71K |
| 代理商： | SN74LS390DR2 |
5-1
FAST AND LS TTL DATA
DUAL DECADE COUNTER;
DUAL 4-STAGE
BINARY COUNTER
The SN54 / 74LS390 and SN54 / 74LS393 each contain a pair of high-speed
4-stage ripple counters. Each half of the LS390 is partitioned into a
divide-by-two section and a divide-by five section, with a separate clock input
for each section. The two sections can be connected to count in the 8.4.2.1
BCD code or they can count in a biquinary sequence to provide a square wave
(50% duty cycle) at the final output.
Each half of the LS393 operates as a Modulo-16 binary divider, with the last
three stages triggered in a ripple fashion. In both the LS390 and the LS393,
the flip-flops are triggered by a HIGH-to-LOW transition of their CP inputs.
Each half of each circuit type has a Master Reset input which responds to a
HIGH signal by forcing all four outputs to the LOW state.
Dual Versions of LS290 and LS293
LS390 has Separate Clocks Allowing ÷2, ÷2.5, ÷5
Individual Asynchronous Clear for Each Counter
Typical Max Count Frequency of 50 MHz
Input Clamp Diodes Minimize High Speed Termination Effects
CONNECTION DIAGRAM DIP (TOP VIEW)
SN54 / 74LS390
SN54 / 74LS393
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
14
13
12
11
10
9
123456
8
7
VCC
CP
MR
Q0
Q1
Q2
Q3
CP
MR
Q0
Q1
Q2
Q3
GND
14
13
12
11
10
9
1
2345
6
7
16
15
8
VCC
CP0
MR
Q0
CP1
Q2
Q1
Q3
MR
Q0
CP1
Q1
Q2
Q3
GND
SN54/74LS390
SN54/74LS393
LOW POWER SCHOTTKY
ORDERING INFORMATION
SN54LSXXXJ
Ceramic
SN74LSXXXN
Plastic
SN74LSXXXD
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
DUAL DECADE COUNTER;
DUAL 4-STAGE
BINARY COUNTER
J SUFFIX
CERAMIC
CASE 632-08
N SUFFIX
PLASTIC
CASE 646-06
14
1
14
1
14
1
D SUFFIX
SOIC
CASE 751A-02
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN74LS390ND | LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP DECADE COUNTER, PDIP16 |
| SN74LS393DR2 | LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO14 |
| SN74LS395ND | LS SERIES, 4-BIT RIGHT PARALLEL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PDIP16 |
| SN74LS396DR | SPECIALTY LOGIC CIRCUIT, PDSO16 |
| SN74LS396FN | SPECIALTY LOGIC CIRCUIT, PQCC20 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74LS390DRE4 | 功能描述:計(jì)數(shù)器 IC Dual 4-Bit Decade Counters RoHS:否 制造商:NXP Semiconductors 計(jì)數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計(jì)數(shù)法: 計(jì)數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
| SN74LS390DRG4 | 功能描述:計(jì)數(shù)器 IC Dual 4B Decade Counters RoHS:否 制造商:NXP Semiconductors 計(jì)數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計(jì)數(shù)法: 計(jì)數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
| SN74LS390N | 功能描述:計(jì)數(shù)器 IC Dual 4bit Decade RoHS:否 制造商:NXP Semiconductors 計(jì)數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計(jì)數(shù)法: 計(jì)數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
| SN74LS390N | 制造商:Texas Instruments 功能描述:IC 74LS 74LS390 DIP16 5.25V |
| SN74LS390NE4 | 功能描述:計(jì)數(shù)器 IC Dual 4-Bit Decade Counters RoHS:否 制造商:NXP Semiconductors 計(jì)數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計(jì)數(shù)法: 計(jì)數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
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