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HD74HC283のメーカーはHitachi Semiconductorです、この部品の機能は「4-bit Binary Full Adder」です。 |
部品番号 | HD74HC283 |
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部品説明 | 4-bit Binary Full Adder | ||
メーカ | Hitachi Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとHD74HC283ダウンロード(pdfファイル)リンクがあります。 Total 10 pages
HD74HC283
4-bit Binary Full Adder
Description
The sun ( ) outputs are provided for each bit and the resultant carry (C4) is obtained from the fourth bit.
This adder features full internal look ahead across all four bits. This provides the system designer with
partial look-ahead performance at the economy and reduced package count of a ripple-carry
implementation. The adder logic, including the carry, is implemented in its true for meaning that the end-
around carry can be accomplished without the need for logic or level inversion.
Features
• High Speed Operation: tpd = 19 ns typ (CL = 50 pF)
• High Output Current: Fanout of 10 LSTTL Loads
• Wide Operating Voltage: VCC = 2 to 6 V
• Low Input Current: 1 µA max
• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
1 Page Pin Arrangement
∑2 1
B2 2
A2 3
∑1 4
A1 5
B1 6
C0 7
GND 8
∑2
B2 B3
A2 A3
∑1 ∑3
A1 A4
B1 B4
C0 ∑4
C4
(Top view)
16 VCC
15 B3
14 A3
13 ∑3
12 A4
11 B4
10 ∑4
9 C4
HD74HC283
3
3Pages HD74HC283
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25°C
Ta = –40 to
+85°C
Item
Symbol
Propagation delay tPLH
time
t PHL
VCC (V)
2.0
4.5
6.0
Min Typ Max Min
— — 150 —
— 19 30 —
— — 26 —
Max Unit
190 ns
38
33
tPLH 2.0 — — 150 — 190 ns
tPHL 4.5 — 19 30 — 38
6.0 — — 26 — 33
tPLH 2.0 — — 150 — 190 ns
tPHL 4.5 — 19 30 — 38
6.0 — — 26 — 33
tPLH 2.0 — — 150 — 190 ns
tPHL 4.5 — 19 30 — 38
6.0 — — 26 — 33
Output rise/fall
time
t TLH
t THL
2.0 — — 75 — 95 ns
4.5 — 5 15 — 19
6.0 — — 13 — 16
Input capacitance Cin — — 5 10 — 10 pF
Test Conditions
C0 to ∑1
A1 or B1 to ∑1
C0 to C4
A1 or B1 to C4
6
6 Page | |||
ページ | 合計 : 10 ページ | ||
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PDF ダウンロード | [ HD74HC283 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 |
HD74HC280 | 9-bit Odd/Even Parity Generator/Checker | Hitachi Semiconductor |
HD74HC283 | 4-bit Binary Full Adder | Hitachi Semiconductor |