參數(shù)資料
型號(hào): 74LVC2244APWDH
廠商: NXP SEMICONDUCTORS
元件分類: 通用總線功能
英文描述: Octal buffer/line driver with 30 ohm series termination resistors; 5 V input/output tolerant; 3-state
中文描述: LVC/LCX/Z SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20
封裝: 4.40 MM, PLASTIC, SOT-360-1, TSSOP-20
文件頁數(shù): 2/16頁
文件大?。?/td> 84K
代理商: 74LVC2244APWDH
1999 Sep 30
2
Philips Semiconductors
Product specification
Octal buffer/line driver with 30
series termination
resistors; 5 V input/output tolerant; 3-state
74LVC2244A
FEATURES
5 V tolerant inputs/outputs for interfacing with 5 V logic
Wide supply voltage range of 1.2 to 3.6 V
CMOS low power consumption
Direct interface with TTL levels
Integrated 30
termination resistors.
DESCRIPTION
The 74LVC2244A 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 3.3 or 5 V devices. In
3-state operation, outputs can handle 5 V. These features
allow the use of these devices as translators in a mixed
3.3/5 V environment.
The 74LVC2244A is an octal non-inverting buffer/line
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 74LVC2244A is designed with 30
series termination resistors in both HIGH and LOW output
stages to reduce line noise.
QUICK REFERENCE DATA
Ground = 0 V; T
amb
= 25
°
C; t
r
= t
f
2.5 ns.
Note
1.
C
PD
is used to determine the dynamic power dissipation (P
D
in
μ
W).
P
D
= C
PD
×
V
CC2
×
f
i
+
Σ
(C
L
×
V
CC2
×
f
o
) where:
f
i
= input frequency in MHz;
f
o
= output frequency in MHz;
C
L
= output load capacitance in pF;
V
CC
= supply voltage in Volts;
Σ
(C
L
×
V
CC2
×
f
o
) = sum of the outputs.
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
t
PHL
/t
PLH
C
I
C
PD
propagation delay 1A
n
to 1Y
n
; 2A
n
to 2Y
n
input capacitance
power dissipation capacitance per buffer
C
L
= 50 pF; V
CC
= 3.3 V
4.0
5.0
25
ns
pF
pF
V
I
= GND to V
CC
; note 1
相關(guān)PDF資料
PDF描述
74LVC2244A Octal buffer/line driver;with 30Ω series termination resistors; with 5-volt tolerant inputs/outputs (3-State)(帶30Ω系列終端電阻器,5V輸入/輸出容限的八緩沖器/線驅(qū)動(dòng)器(三態(tài)))
74LVC2245APWDH Octal transceiver with direction pin; 30 ohm series termination resistors; 5 V input/output tolerant; 3-state
74LVC2245A Octal transceiver with direction pin;with 30Ω series termination resistors; with 5-volt tolerant inputs/outputs (3-State)(帶30Ω系列終端電阻器,5V輸入/輸出容限的八收發(fā)器(三態(tài)))
74LVC2373A Octal D-Type Flip-Flops With Clear 20-PDIP -40 to 85
74LVCH2373A 14-Bit Asynchronous Binary Counters 16-PDIP -40 to 85
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
74LVC2245ABQ 制造商:NXP Semiconductors 功能描述:IC TXRX OCTAL 3ST DHVQFN20
74LVC2245ABQ,115 功能描述:總線收發(fā)器 OCTAL TRANSCEIVER RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時(shí)間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
74LVC2245ABQ-G 功能描述:總線收發(fā)器 OCTAL TRANSCEIVER 3-S TERM RES RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時(shí)間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
74LVC2245AD 功能描述:總線收發(fā)器 OCTAL TRANSCEIVER 3-S TERM RES RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時(shí)間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
74LVC2245AD,112 功能描述:總線收發(fā)器 OCTAL TRANSCEIVER RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時(shí)間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel