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HD74LV157AのメーカーはHitachi Semiconductorです、この部品の機能は「Quad. 2-to-1 line Data Selectors / Multiplexers(Noninverted Outputs)」です。 |
部品番号 | HD74LV157A |
| |
部品説明 | Quad. 2-to-1 line Data Selectors / Multiplexers(Noninverted Outputs) | ||
メーカ | Hitachi Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとHD74LV157Aダウンロード(pdfファイル)リンクがあります。 Total 14 pages
HD74LV157A
Quad. 2-to-1 line Data Selectors / Multiplexers
(Noninverted Outputs)
ADE-205-263 (Z)
1st Edition
March 1999
Description
The HD74LV157A has four 2-input digital multiplexers with common select and strobe inputs. When the
strobe input is low, a 4-bit word is selected from one of two sources and is routed to the four outputs.
The device provides true data.
Low-voltage and high-speed operation is suitable for the battery-powered products (e.g., notebook
computers), and the low-power consumption extends the battery life.
Features
• VCC = 2.0 V to 5.5 V operation
• All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V)
• All outputs VO (Max.) = 5.5 V (@VCC = 0 V)
• Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)
• Typical VOH undershoot > 2.3 V (@VCC = 3.3 V, Ta = 25°C)
• Output current ±6 mA (@VCC = 3.0 V to 3.6 V), ±12 mA (@VCC = 4.5 V to 5.5 V)
Function Table
Inputs
STB SEL A B Output
HXX XL
L L L XL
L L HXH
L HX L L
L HX HH
Note: H: High level
L: Low level
X: Immaterial
1 Page HD74LV157A
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit Conditions
Supply voltage range
Input voltage range*1
Output voltage range*1, 2
VCC
VI
VO
Input clamp current
Output clamp current
Continuous output current
Continuous current through
VCC or GND
Maximum power dissipation
at Ta = 25°C (in still air)*3
I IK
I OK
IO
ICC or IGND
PT
–0.5 to 7.0
–0.5 to 7.0
–0.5 to VCC + 0.5
–0.5 to 7.0
–20
±50
±25
±50
V
V
V
mA
mA
mA
mA
785 mW
Output: H or L
VCC: OFF
VI < 0
VO < 0 or VO > VCC
VO = 0 to VCC
SOP
500 TSSOP
Storage temperature
Tstg
–65 to 150
°C
Notes: The absolute maximum ratings are values which must not individually be exceeded, and furthermore,
no two of which may be realized at the same time.
1. The input and output voltage ratings may be exceeded if the input and output clamp-current
ratings are observed.
2. This value is limited to 5.5 V maximum.
3. The maximum package power dissipation was calculated using a junction temperature of 150°C.
3
3Pages HD74LV157A
DC Electrical Characteristics
• Ta = –40 to 85°C
Item
Symbol
Input voltage
VIH
VIL
Output voltage VOH
VCC (V)*
2.0
2.3 to 2.7
3.0 to 3.6
4.5 to 5.5
2.0
2.3 to 2.7
3.0 to 3.6
4.5 to 5.5
Min to
Max
Min
1.5
VCC × 0.7
VCC × 0.7
VCC × 0.7
—
—
—
—
VCC – 0.1
Typ
—
—
—
—
—
—
—
—
—
Max
—
—
—
—
0.5
VCC × 0.3
VCC × 0.3
VCC × 0.3
—
Unit Test Conditions
V
V IOH = –50 µA
2.3 2.0
—
3.0 2.48 —
4.5 3.8
—
VOL
Min to
—
Max
—
—
—
—
0.1
IOH = –2 mA
IOH = –6 mA
IOH = –12 mA
IOL = 50 µA
Input current
Quiescent
supply current
IIN
ICC
2.3
3.0
4.5
0 to 5.5
5.5
—
—
—
—
—
— 0.4
IOL = 2 mA
— 0.44
IOL = 6 mA
— 0.55
IOL = 12 mA
— ±1
µA VI = 5.5 V or GND
— 20
µA VI = VCC or GND, IO = 0
Output leakage IOFF
0
—
—5
current
µA VI or VO = 0 V to 5.5 V
Input
CIN 3.3 —
capacitance
1.9 —
pF VI = VCC or GND
Note: For conditions shown as Min or Max, use the appropriate values under recommended operating
conditions.
6
6 Page | |||
ページ | 合計 : 14 ページ | ||
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部品番号 | 部品説明 | メーカ |
HD74LV157A | Quad. 2-to-1 line Data Selectors / Multiplexers(Noninverted Outputs) | Hitachi Semiconductor |