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74VHC244MTC の電気的特性と機能

74VHC244MTCのメーカーはFairchild Semiconductorです、この部品の機能は「Octal Buffer/Line Driver with 3-STATE Outputs」です。


製品の詳細 ( Datasheet PDF )

部品番号 74VHC244MTC
部品説明 Octal Buffer/Line Driver with 3-STATE Outputs
メーカ Fairchild Semiconductor
ロゴ Fairchild Semiconductor ロゴ 




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74VHC244MTC Datasheet, 74VHC244MTC PDF,ピン配置, 機能
November 1992
Revised April 1999
74VHC244
Octal Buffer/Line Driver with 3-STATE Outputs
General Description
The VHC244 is an advanced high speed CMOS octal bus
buffer fabricated with silicon gate CMOS technology. It
achieves high speed operation similar to equivalent Bipolar
Schottky TTL while maintaining the CMOS low power dissi-
pation. The VHC244 is a non-inverting 3-STATE buffer hav-
ing two active-LOW output enables. These devices are
designed to be used as 3-STATE memory address drivers,
clock drivers, and bus oriented transmitter/receivers.
An input protection circuit ensures that 0V to 7V can be
applied to the input pins without regard to the supply volt-
age. This device can be used to interface 5V to 3V systems
and two supply systems such as battery back up. This cir-
cuit prevents device destruction due to mismatched supply
and input voltages.
Features
s High Speed: tPD = 3.9ns (typ) at VCC = 5V
s High noise immunity: VNIH = VNIL = 28% VCC (min)
s Power down protection is provided on all inputs
s Low noise: VOLP = 0.6V (typ)
s Low power dissipation: ICC = 4 µA (max) @ TA = 25°C
s Pin and function compatible with 74HC244
Ordering Code:
Order Number Package Number
Package Description
74VHC244M
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
74VHC244SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74VHC244MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74VHC244N
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Connection Diagram
IEEE/IEC
Pin Descriptions
Pin Names
OE1, OE2
I0–I7
O0–O7
Description
3-STATE Output Enable Inputs
Inputs
3-STATE Outputs
© 1999 Fairchild Semiconductor Corporation DS011522.prf
www.fairchildsemi.com

1 Page





74VHC244MTC pdf, ピン配列
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC)
DC Input Voltage (VIN)
DC Output Voltage (VOUT)
Input Diode Current (IIK)
Output Diode Current (IOK)
DC Output Current (IOUT)
DC VCC/GND Current (ICC)
Storage Temperature (TSTG)
Lead Temperature (TL)
(Soldering, 10 seconds)
0.5V to +7.0V
0.5V to +7.0V
0.5V to VCC + 0.5V
20 mA
±20 mA
±25 mA
±75 mA
65°C to +150°C
260°C
Recommended Operating
Conditions (Note 2)
Supply Voltage (VCC)
2.0V to 5.5V
Input Voltage (VIN)
0V to +5.5V
Output Voltage (VOUT)
0V to VCC
Operating Temperature (TOPR)
40°C to +85°C
Input Rise and Fall Time (tr, tf)
VCC = 3.3V ± 0.3V
0 ns/V 100 ns/V
VCC = 5.0V ± 0.5V
0 ns/V 20 ns/V
Note 1: Absolute Maximum Ratings are values beyond which the device
may be damaged or have its useful life impaired. The databook specifica-
tions should be met, without exception, to ensure that the system design is
reliable over its power supply, temperature, and output/input loading vari-
ables. Fairchild does not recommend operation outside databook specifica-
tions.
Note 2: Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Symbol
VIH
VIL
VOH
VOL
IOZ
IIN
ICC
Parameter
VCC
(V)
HIGH Level
2.0
Input Voltage
3.0 5.5
LOW Level
2.0
Input Voltage
3.0 5.5
HIGH Level
2.0
Output Voltage
3.0
4.5
3.0
4.5
LOW Level
2.0
Output Voltage
3.0
4.5
3.0
4.5
3-STATE Output
5.5
Off-State Current
Input Leakage Current
0 5.5
Quiescent Supply Current 5.5
Min
1.5
0.7 VCC
1.9
2.9
4.4
2.58
3.94
TA = 25°C
Typ
2.0
3.0
4.5
0.0
0.0
0.0
Max
0.5
0.3 VCC
0.1
0.1
0.1
0.36
0.36
±0.25
±0.1
4.0
TA = −40°C to +85°C
Min Max
1.5
0.7 VCC
0.5
0.3 VCC
1.9
2.9
4.4
2.48
3.80
0.1
0.1
0.1
0.44
0.44
±2.5
±1.0
40.0
Units
Conditions
V
V
VIN = VIH IOH = −50 µA
V or VIL
V IOH = −4 mA
IOH = −8 mA
VIN = VIH IOL = 50 µA
V or VIL
V IOL = 4 mA
IOL = 8 mA
µA VIN = VIH or VIL
VOUT = VCC or GND
µA VIN = 5.5V or GND
µA VIN = VCC or GND
Noise Characteristics
Symbol
Parameter
VOLP
(Note 3)
VOLV
(Note 3)
VIHD
(Note 3)
Quiet Output Maximum
Dynamic VOL
Quiet Output Minimum
Dynamic VOL
Minimum HIGH Level
Dynamic Input Voltage
VILD
(Note 3)
Maximum HIGH Level
Dynamic Input Voltage
Note 3: Parameter guaranteed by design.
VCC
TA = 25°C
Units
(V) Typ Limits
Conditions
5.0 0.6 0.9
V CL = 50 pF
5.0
0.6
0.9
V CL = 50 pF
5.0 3.5 V CL = 50 pF
5.0 1.5 V CL = 50 pF
3 www.fairchildsemi.com


3Pages


74VHC244MTC 電子部品, 半導体
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Package Number MTC20
www.fairchildsemi.com
6

6 Page



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部品番号部品説明メーカ
74VHC244MTC

Octal Buffer/Line Driver with 3-STATE Outputs

Fairchild Semiconductor
Fairchild Semiconductor


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