參數(shù)資料
型號(hào)： SN74AHCT258
廠商： Texas Instruments, Inc.
英文描述： Quadruple 2-Line To 1-Line Data Selectors/Multiplexers(四2選1數(shù)據(jù)選擇器(三態(tài)輸出))
中文描述： 四2線1線數(shù)據(jù)選擇器/多路轉(zhuǎn)換器（四2選1數(shù)據(jù)選擇器（三態(tài)輸出））
文件頁(yè)數(shù)： 5/6頁(yè)
文件大?。?/td> 140K
代理商： SN74AHCT258
SN54AHCT258, SN74AHCT258
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SCLS344C – MAY 1996 – REVISED JUNE 1997
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
noise characteristics V
CC
= 5 V, C
L
= 50 pF, T
A
= 25
°
C (see Note 4)
PARAMETER
SN74AHCT258
MIN
UNIT
MAX
VOL(P)
VOL(V)
VOH(V)
VIH(D)
VIL(D)
NOTE 4: Characteristics are determined during product characterization and ensured by design for surface-mount packages only.
Quiet output, maximum dynamic VOL
Quiet output, minimum dynamic VOL
Quiet output, minimum dynamic VOH
High-level dynamic input voltage
0.8
V
–0.8
V
V
2
V
Low-level dynamic input voltage
0.8
V
operating characteristics, V
CC
= 5 V, T
A
= 25
°
C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance
No load,
f = 1 MHz
20
pF
PARAMETER MEASUREMENT INFORMATION
tPLH
tPHL
tPHL
tPLH
VOH
VOH
VOL
VOL
3 V
0 V
Input
Out-of-Phase
Output
In-Phase
Output
VOLTAGE WAVEFORMS
DELAY TIMES
From Output
Under Test
CL
(see Note A)
S1
VCC
Output Control
(low-level
enabling)
Output
Waveform 1
S1 at VCC
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
VOL
VOH
tPZL
tPZH
tPLZ
tPHZ
≈
VCC
0 V
≈
0 V
3 V
Open
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
VCC
GND
TEST
S1
VOL +
0.3 V
1 k
GND
1.5 V
1.5 V
1.5 V
LOAD CIRCUIT
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR
≤
1 MHz, ZO = 50
, tr = 3 ns, tf = 3 ns.
D. The outputs are measured one at a time with one input transition per measurement.
50% VCC
50% VCC
50% VCC
50% VCC
50% VCC
50% VCC
1.5 V
VOH –
0.3 V
Figure 1. Load Circuit and Voltage Waveforms
P
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SN74AHCT273DBRE4 功能描述:觸發(fā)器 Octal D-Type Flip-Flop w/Clear RoHS:否 制造商:Texas Instruments 電路數(shù)量:2 邏輯系列:SN74 邏輯類型:D-Type Flip-Flop 極性:Inverting, Non-Inverting 輸入類型:CMOS 輸出類型: 傳播延遲時(shí)間:4.4 ns 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel
SN74AHCT273DBRG4 功能描述:觸發(fā)器 Octal DType FlipFlop RoHS:否 制造商:Texas Instruments 電路數(shù)量:2 邏輯系列:SN74 邏輯類型:D-Type Flip-Flop 極性:Inverting, Non-Inverting 輸入類型:CMOS 輸出類型: 傳播延遲時(shí)間:4.4 ns 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel
SN74AHCT273DGVR 功能描述:觸發(fā)器 Octal D-Type Flip-Flop w/Clear RoHS:否 制造商:Texas Instruments 電路數(shù)量:2 邏輯系列:SN74 邏輯類型:D-Type Flip-Flop 極性:Inverting, Non-Inverting 輸入類型:CMOS 輸出類型: 傳播延遲時(shí)間:4.4 ns 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel
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