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參數(shù)資料
| 型號： | SN74LS85N |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | Silicon Controlled Rectifier; Package: TO-220 3 LEAD STANDARD; No of Pins: 3; Container: Rail; Qty per Container: 50 |
| 中文描述： | LS SERIES, 4-BIT MAGNITUDE COMPARATOR, TRUE OUTPUT, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 102K |
| 代理商： | SN74LS85N |
5-84
FAST AND LS TTL DATA
4-BIT MAGNITUDE
COMPARATOR
The SN54/74LS85 is a 4-Bit Magnitude Camparator which compares two
4-bit words (A, B), each word having four Parallel Inputs (A0–A3, B0–B3); A3,
B3 being the most significant inputs. Operation is not restricted to binary
codes, the device will work with any monotonic code. Three Outputs are
provided: “A greater than B” (OA>B), “A less than B” (OA<B), “A equal to B”
(OA=B). Three Expander Inputs, IA>B, IA<B, IA=B, allow cascading without
external gates. For proper compare operation, the Expander Inputs to the
least significant position must be connected as follows: IA<B= IA>B = L, IA=B
= H. For serial (ripple) expansion, the OA>B, OA<B and OA=B Outputs are
connected respectively to the IA>B, IA<B, and IA=B Inputs of the next most
significant comparator, as shown in Figure 1. Refer to Applications section of
data sheet for high speed method of comparing large words.
The Truth Table on the following page describes the operation of the
SN54/74LS85 under all possible logic conditions. The upper 11 lines describe
the normal operation under all conditions that will occur in a single device or
in a series expansion scheme. The lower five lines describe the operation
under abnormal conditions on the cascading inputs. These conditions occur
when the parallel expansion technique is used.
Easily Expandable
Binary or BCD Comparison
OA>B, OA<B, and OA=B Outputs Available
CONNECTION DIAGRAM DIP
(TOP VIEW)
NOTE:
The Flatpak version has the
same pinouts (Connection
Diagram) as the Dual In-Line
Package.
14
13
12
11
10
9
1
2
3
4
5
6
7
16
15
8
VCC
B3
A3
B2
A2
A1
A0
B1
B0
IA<B
IA=B
IA>B OA>BOA=BOA<B GND
PIN NAMES
LOADING
(Note a)
HIGH
LOW
A0–A3, B0–B3
IA=B
IA<B, IA>B
OA>B
OA<B
OA=B
NOTES:
a) 1 TTL Unit Load (U.L.) = 40
μ
A HIGH/1.6 mA LOW.
b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74)
Temperature Ranges.
Parallel Inputs
A = B Expander Inputs
A < B, A > B, Expander Inputs
A Greater Than B Output (Note b)
B Greater Than A Output (Note b)
A Equal to B Output (Note b)
1.5 U.L.
1.5 U.L.
0.5 U.L.
10 U.L.
10 U.L.
10 U.L.
0.75 U.L.
0.75 U.L.
0.25 U.L.
5 (2.5) U.L.
5 (2.5) U.L.
5 (2.5) U.L.
SN54/74LS85
4-BIT MAGNITUDE
COMPARATOR
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
10 12 1315 9 11 14 1
4
2
3
5
7
6
A0A1A2A3B0B1B2B3
IA>B
IA<B
IA=B
OA>B
OA<B
OA=B
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN74LS85 | Sensitive Gate Silicon Controlled Rectifier; Package: TO-92 (TO-226) 5.33mm Body Height; No of Pins: 3; Container: Tape and Reel; Qty per Container: 2000 |
| SN74LS85D | Sensitive Gate Silicon Controlled Rectifier; Package: TO-225; No of Pins: 3; Container: Bulk; Qty per Container: 500 |
| SN74LS85N | Silicon Controlled Rectifier; Package: DPAK 4 LEAD Single Gauge Surface Mount; No of Pins: 4; Container: Tape and Reel; Qty per Container: 2500 |
| SN74LS86 | Silicon Controlled Rectifier; Package: DPAK 4 LEAD Single Gauge Surface Mount; No of Pins: 4; Container: Tape and Reel; Qty per Container: 2500 |
| SN74LS86D | Silicon Controlled Rectifier; Package: TO-220 3 LEAD STANDARD; 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 |
|---|---|
| SN74LS85N | 制造商:Texas Instruments 功能描述:IC 74LS 74LS85 DIP16 5.25V |
| SN74LS85N | 制造商:Texas Instruments 功能描述:IC 74LS 74LS85 DIP16 5.25V |
| SN74LS85NDS | 制造商:Motorola Inc 功能描述:MAGNITUDE COMPARATOR, 16 Pin, Plastic, DIP |
| SN74LS85NE4 | 功能描述:校驗器 IC 4-bit binary or BCD Magnitude Comparator RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| SN74LS85NS | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
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