|
|
MC14008BのメーカーはMotorola Semiconductorsです、この部品の機能は「4-Bit Full Adder」です。 |
部品番号 | MC14008B |
| |
部品説明 | 4-Bit Full Adder | ||
メーカ | Motorola Semiconductors | ||
ロゴ | |||
このページの下部にプレビューとMC14008Bダウンロード(pdfファイル)リンクがあります。 Total 8 pages
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
4-Bit Full Adder
The MC14008B 4–bit full adder is constructed with MOS P–channel and
N–channel enhancement mode devices in a single monolithic structure. This
device consists of four full adders with fast internal look–ahead carry output.
It is useful in binary addition and other arithmetic applications. The fast
parallel carry output bit allows high–speed operation when used with other
adders in a system.
• Look–Ahead Carry Output
• Diode Protection on All Inputs
• All Outputs Buffered
• Supply Voltage Range = 3.0 Vdc to 18 Vdc
• Capable of Driving Two Low–power TTL Loads or One Low–power
Schottky TTL Load Over the Rated Temperature Range
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎΕ Pin–for–Pin Replacement for CD4008B
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎMAXIMUM RATINGS* (Voltages Referenced to VSS)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎSymbol
Parameter
Value
Unit
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎVDD
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎVin, Vout
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎlin, lout
DC Supply Voltage
Input or Output Voltage (DC or Transient)
Input or Output Current (DC or Transient),
per Pin
– 0.5 to + 18.0
– 0.5 to VDD + 0.5
± 10
V
V
mA
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎPD Power Dissipation, per Package†
500 mW
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎTstg Storage Temperature
– 65 to + 150
_C
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎTL Lead Temperature (8–Second Soldering)
260 _C
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ* Maximum Ratings are those values beyond which damage to the device may occur.
†Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C To 125_C
Ceramic “L” Packages: – 12 mW/_C From 100_C To 125_C
BLOCK DIAGRAM
HIGH–SPEED
PARALLEL CARRY
B4 15
A4 1
B3 2
A3 3
B2 4
A2 5
B1 6
A1 7
Cin 9
REV 3
1/94
©MMOotoTrOolaR, IOncL. A199C5MOS LOGIC DATA
14 Cout
ADDER
4
13 S4
C4
ADDER
3
12 S3
C3
ADDER
2
11 S2
C2
ADDER
1
10 S1
VDD = PIN 16
VSS = PIN 8
MC14008B
L SUFFIX
CERAMIC
CASE 620
P SUFFIX
PLASTIC
CASE 648
D SUFFIX
SOIC
CASE 751B
ORDERING INFORMATION
MC14XXXBCP
MC14XXXBCL
MC14XXXBD
Plastic
Ceramic
SOIC
TA = – 55° to 125°C for all packages.
TRUTH TABLE
(One Stage)
Cin B
00
00
01
01
10
10
11
11
A Cout
00
10
00
11
00
11
01
11
S
0
1
1
0
1
0
0
1
PIN ASSIGNMENT
A4 1
B3 2
A3 3
B2 4
A2 5
B1 6
A1 7
VSS 8
16 VDD
15 B4
14 Cout
13 S4
12 S3
11 S2
10 S1
9 Cin
MC14008B
37
1 Page ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎSWITCHING CHARACTERISTICS* (CL=50pF,TA=25_C)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎCharacteristic
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎOutput Rise and Fall Time
tTLH, tTHL = (1.5 ns/pF) CL + 25 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎtTLH, tTHL = (0.75 ns/pF) CL + 12.5 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎtTLH, tTHL = (0.55 ns/pF) CL + 9.5 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎPropagation Delay Time
Sum in to Sum Out
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎtPLH, tPHL = (1.7 ns/pF) CL + 315 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎtPLH, tPHL = (0.66 ns/pF) CL + 127 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎtPLH, tPHL = (0.5 ns/pF) CL + 90 ns
Sum In to Carry Out
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎtPLH, tPHL = (1.7 ns/pF) CL + 220 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎtPLH, tPHL = (0.66 ns/pF) CL + 112 ns
tPLH, tPHL = (0.5 ns/pF) CL + 85 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎCarry In to Sum Out
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎtPLH, tPHL = (1.7 ns/pF) CL + 290 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎtPLH, tPHL = (0.66 ns/pF) CL + 122 ns
tPLH, tPHL = (0.5 ns/pF) CL + 90 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎCarry In to Carry Out
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎtPLH, tPHL = (1.7 ns/pF) CL + 85 ns
tPLH, tPHL = (0.66 ns/pF) CL + 42 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎtPLH, tPHL = (0.5 ns/pF) CL + 30 ns
Symbol
tTLH,
tTHL
tPLH, tPHL
VDD
Vdc
5.0
10
15
5.0
10
15
5.0
10
15
5.0
10
15
5.0
10
15
Min Typ # Max Unit
ns
— 100 200
— 50 100
— 40 80
ns
— 400 800
— 160 320
— 115 230
— 305 610
— 145 290
— 110 220
— 375 750
— 155 310
— 115 230
— 170 340
— 75 150
— 55 110
* The formulas given are for the typical characteristics only at 25_C.
#Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
VDD = – VGS
16
B4 S4
A4
B3 S3
A3
B2 S2
A2
B1 S1
A1
Cin Cout
8 VSS
Vout
IOH
EXTERNAL
POWER
SUPPLY
Figure 1. Typical Source Current
Characteristics Test Circuit
VDD = VGS
16
B4 S4
A4
B3 S3
A3
B2 S2
A2
B1 S1
A1
Cin Cout
8 VSS
Vout
IOL
EXTERNAL
POWER
SUPPLY
Figure 2. Typical Sink Current
Characteristics Test Circuit
MOTOROLA CMOS LOGIC DATA
MC14008B
39
3Pages TYPICAL APPLICATION
WORD A + B INPUTS
A1 B4 A1 B4 A1 B4 A1 B4
Cin
CHIP
1
Cout
Cin
CHIP
2
Cout
Cin
CHIP
3
Cout
Cin
CHIP
4
Cout
S1 S4 S1 S4 S1 S4 S1
SUM OUTPUTS
Calculation of 16–bit adder speed:
tP total = tP (Sum to Carry) + tP (Carry to Sum) + 2 tP (Carry to Carry)
The guaranteed 16–bit adder speed at 10 V, 25°C, CL = 50 pF is:
tp total = 290 + 310 + 300 = 900 ns
Figure 6. Using the MC14008B in a 16–Bit Adder Configuration
S4
MC14008B
42
MOTOROLA CMOS LOGIC DATA
6 Page | |||
ページ | 合計 : 8 ページ | ||
|
PDF ダウンロード | [ MC14008B データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
MC14008B | 4-Bit Full Adder | ON Semiconductor |
MC14008B | 4-Bit Full Adder | Motorola Semiconductors |
MC14008BCP | 4-Bit Full Adder | ON Semiconductor |
MC14008BDR2 | 4-Bit Full Adder | ON Semiconductor |