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參數(shù)資料
| 型號： | M74HC251 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 8 Bit SIPO Shift Register(8位串入并出移位寄存器) |
| 中文描述： | 8位國家知識產(chǎn)權(quán)局移位寄存器（8位串入并出移位寄存器） |
| 文件頁數(shù)： | 1/11頁 |
| 文件大小： | 249K |
| 代理商： | M74HC251 |
M54HC251
M74HC251
February 1993
8 BIT SIPO SHIFT REGISTER
B1R
(Plastic Package)
ORDER CODES :
M54HC251F1R
M74HC251B1R
M74HC251M1R
M74HC251C1R
F1R
(CeramicPackage)
M1R
(MicroPackage)
C1R
(Chip Carrier)
PIN CONNECTIONS
(top view)
NC =
No Internal
Connection
.
HIGH SPEED
t
PD
= 14 ns(TYP.) AT V
CC
= 5 V
.
LOWPOWER DISSIPATION
I
CC
= 4
μ
A(MAX.) AT T
A
= 25
°
C 6 V
.
HIGH NOISE IMMUNITY
V
NIH
= V
NIL
= 28 % V
CC
(MIN.)
.
OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
.
SYMMETRICAL OUTPUT IMPEDANCE
IOH
= I
OL
= 4 mA(MIN.)
.
BALANCEDPROPAGATION DELAYS
t
PLH
= t
PHL
.
WIDE OPERATING VOLTAGE RANGE
V
CC
(OPR) = 2 V TO6 V
.
PIN AND FUNCTION COMPATIBLE WITH
54/74LS251
DESCRIPTION
TheM54/74HC251isahighspeed CMOS8-CHAN-
NELMULTIPLEXER(3-STATE)fabricated insilicon
gate C
2
MOS technology. It has the same high
speed performance of LSTTL combined with true
CMOS low power consumption. This multiplexer
features both true (Y) and complement (W) outputs
as well as STROBE input. The STROBE must be a
low logic level to enable this device. When the
STROBEinput is high, both outputs are in the high
impedance state. When enabled, address informa-
tiononthedata selectinputs determines whichdata
input is routed to Y and W. All inputs are equipped
with protection circuits against static discharge and
transient excess voltage.
INPUT AND OUTPUT EQUIVALENT CIRCUIT
1/11
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M74HC251B1R | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 8-Ch Multiplexer RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| M74HC251B1R | 制造商:STMicroelectronics 功能描述:IC 74HC CMOS 74HC251 DIP16 6V |
| M74HC251C1R | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8 BIT SIPO SHIFT REGISTER |
| M74HC251M1R | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 8-Ch Multiplexer RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| M74HC251RM13TR | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 8-Ch Multiplexer RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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