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參數(shù)資料
| 型號(hào)： | 7LVC244APWDH |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 通用總線功能 |
| 英文描述： | Octal buffer/line driver with 5-volt tolerant inputs/outputs 3-Statetitle |
| 中文描述： | LVC/LCX/Z SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 文件頁(yè)數(shù)： | 2/10頁(yè) |
| 文件大小： | 96K |
| 代理商： | 7LVC244APWDH |
Philips Semiconductors
Product specification
74LVC244A
74LVCH244A
Octal buffer/line driver with 5-volt
tolerant inputs/outputs (3-State)
2
1998 May 20
853-1876 19419
FEATURES
5-volt tolerant inputs/outputs, for interfacing with 5-volt logic
Supply voltage range of 2.7V to 3.6V
Complies with JEDEC standard no. 8-1A
CMOS low power consumption
Direct interface with TTL levels
High impedance when V
CC
= 0V
Bushold on all data inputs (74LVCH244A only)
DESCRIPTION
The 74LVC244A/74LVCH244A is a high-performance, low-power,
low-voltage, Si-gate CMOS device, superior to most advanced
CMOS compatible TTL families.
Inputs can be driven from either 3.3V or 5V devices. In 3-State
operation, outputs can handle 5V. These features allow the use of
these devices as translators in a mixed 3.3V/5V environment.
driver with 3-State outputs. The 3-State outputs are controlled by the
output enable inputs 1OE and 2OE. A HIGH on nOE causes the
outputs to assume a high impedance OFF-state. Schmitt-trigger
action at all inputs makes the circuit highly tolerant for slower input
rise and fall times.
The ’244’ is functionally identical to the ’240’, but the ’240’ has
non-inverting outputs.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
t
PHL
PLH
/t
Propagation delay
1A to 1Y
n;
2A
n
to 2Y
n
C
L
= 50pF
= 3 3V
V
CC
= 3.3V
3 5
3.5
ns
C
I
Input capacitance
4.4
pF
C
PD
Power dissipation capacitance per
buffer
Notes 1 and 2
22.6
pF
NOTE:
1. C
PD
is used to determine the dynamic power dissipation (P
D
in W):
P
D
= C
PD
x V
CC2
x f
i
+ (C
L
x V
CC2
x f
o
) where:
f
i
= input frequency in MHz; C
L
= output load capacity in pF;
f
o
= output frequency in MHz; V
CC
= supply voltage in V;
(C
L
x V
CC2
x f
o
) = sum of outputs.
2. The condition is V
I
= GND to V
CC
ORDERING INFORMATION
PACKAGES
TEMPERATURE
RANGE
OUTSIDE
NORTH AMERICA
NORTH AMERICA
PKG. DWG. #
20-Pin Plastic Shrink Small Outline (SO)
–40
°
C to +85
°
C
74LVC244A D
74LVC244A D
SOT163-1
20-Pin Plastic Shrink Small Outline (SSOP) Type II
–40
°
C to +85
°
C
74LVC244A DB
74LVC244A DB
SOT339-1
20-Pin Plastic Thin Shrink Small Outline (TSSOP) Type I
–40
°
C to +85
°
C
74LVC244A PW
7LVC244APW DH
SOT360-1
20-Pin Plastic Shrink Small Outline (SO)
–40
°
C to +85
°
C
74LVCH244A D
74LVCH244A D
SOT163-1
20-Pin Plastic Shrink Small Outline (SSOP) Type II
–40
°
C to +85
°
C
74LVCH244A DB
74LVCH244A DB
SOT339-1
20-Pin Plastic Thin Shrink Small Outline (TSSOP) Type I
–40
°
C to +85
°
C
74LVCH244A PW
LVCH244APW DH
SOT360-1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 7LVC245APWDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal bus transceiver with direction pin with 5-volt tolerant inputs/outputs 3-State |
| 7LVC373APWDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal D-type transparent latch with 5-volt tolerant inputs/outputs 3-State |
| 7LVC374APWDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal D-type flip-flop with 5-volt tolerant inputs/outputs; positive edge-trigger 3-State |
| 7LVC541APWDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal buffer/line driver with 5-volt tolerant inputs/outputs 3-State |
| 7LVC543APWDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal D-type registered transceiver 3-State |
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