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參數資料
| 型號： | 74F2244SCX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Dual 4-Bit Non-Inverting Buffer/Driver |
| 中文描述： | F/FAST SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | 0.300 INCH, MS-013, SOIC-20 |
| 文件頁數： | 5/10頁 |
| 文件大?。?/td> | 95K |
| 代理商： | 74F2244SCX |
Philips Semiconductors
Octal buffer with 30
equivalent output termination
(3-State)
Product specification
74F2244
1994 Dec 05
5
AC WAVEFORMS
For all waveforms, V
M
= 1.5V.
V
M
V
M
V
M
V
M
Yn
Ian, Ibn
t
PLH
t
PHL
SF00231
Waveform 1. Propagation delay for data to outputs
V
OH
–0.3V
V
M
V
M
V
M
Yn
t
PZH
t
PHZ
SF00233
OEn
0V
Waveform 2. 3-State output enable time to high level
and output disable time from high level
V
OL
+0.3V
V
M
V
M
V
M
Yn
t
PZL
t
PLZ
SF00234
OEn
3.5V
Waveform 3. 3-State output enable time to low level
and output disable time from low level
TEST CIRCUIT AND WAVEFORMS
SWITCH POSITION
TEST
SWITCH
closed
open
All other
t
w
90%
V
M
10%
90%
V
M
10%
90%
V
M
10%
90%
V
M
10%
NEGATIVE
PULSE
POSITIVE
PULSE
t
w
AMP (V)
0V
0V
t
THL (
t
f
)
INPUT PULSE REQUIREMENTS
rep. rate
t
w
t
TLH
t
THL
2.5ns
1MHz
500ns 2.5ns
Input pulse definition
V
CC
family
74F
D.U.T.
PULSE
GENERATOR
R
L
C
L
R
T
V
IN
V
OUT
Test circuit for 3-State outputs
DEFINITIONS:
R
L
=
Load resistor; see AC electrical characteristics for
value.
C
L
=
Load capacitance includes jig and probe
capacitance; see AC electrical characteristics for
value
R
T
=
Termination resistance should be equal to Z
OUT
of
pulse generators.
t
THL (
t
f
)
t
TLH (
t
r
)
t
TLH (
t
r
)
AMP (V)
amplitude
3.0V
1.5V
V
M
R
L
7.0V
t
PLZ
, t
PZL
SF000235
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PDF描述 |
|---|---|
| 74F2244MSA | Octal Buffer/Line Driver with 25ヘ Series Resistors in Outputs |
| 74F2245 | Octal transceiver with 30ohm equivalent output termination 3-State |
| 74F2245 | Octal Bidirectional Transceiver with TRI-STATE Outputs |
| 74F2245SC | Octal Bidirectional Transceiver with TRI-STATE Outputs |
| 74F2245SCX | Octal Bidirectional Transceiver with TRI-STATE Outputs |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 74F2245 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal transceiver with 30ohm equivalent output termination 3-State |
| 74F2245 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| 74F2245SC | 功能描述:總線收發(fā)器 RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數量: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 |
| 74F2245SCX | 功能描述:總線收發(fā)器 RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數量: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 |
| 74F225 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:16X5 asynchronous FIFO 3-State |
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