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參數(shù)資料
| 型號： | SN74ACT240PWG4 |
| 廠商： | Texas Instruments |
| 文件頁數(shù)： | 15/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC INVERTER DUAL 4-INPUT 20TSSOP |
| 標(biāo)準(zhǔn)包裝： | 70 |
| 系列： | 74ACT |
| 邏輯類型： | 逆變器，緩沖器 |
| 電路數(shù)： | 2 |
| 輸入數(shù)： | 4 |
| 特點： | 三態(tài) |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 電流 - 靜態(tài)（最大值）： | 4µA |
| 輸出電流高，低： | 24mA，24mA |
| 邏輯電平 - 低： | 0.8V |
| 邏輯電平 - 高： | 2V |
| 額定電壓和最大 CL 時的最大傳播延遲： | 8.5ns @ 5V，50pF |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 供應(yīng)商設(shè)備封裝： | 20-TSSOP |
| 封裝/外殼： | 20-TSSOP（0.173"，4.40mm 寬） |
| 包裝： | 管件 |
SN54ACT240, SN74ACT240
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS515C JUNE 1995 REVISED OCTOBER 2002
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching
characteristics
over
recommended
operating
free-air
temperature
range,
VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
TA = 25°C
SN54ACT240
SN74ACT240
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tPLH
A
Y
1.5
6
8.5
1
9.5
1.5
9.5
ns
tPHL
A
Y
1.5
5.5
7.5
1
9
1.5
8.5
ns
tPZH
OE
Y
1.5
7
8.5
1
10
1
9.5
ns
tPZL
OE
Y
2
7
9.5
1
11.5
1.5
10.5
ns
tPHZ
OE
Y
2
8
9.5
1
11
2
10.5
ns
tPLZ
OE
Y
2.5
6.5
10
1
11.5
2
10.5
ns
operating characteristics, VCC = 5 V, TA = 25°C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance per buffer/driver
CL = 50 pF,
f = 1 MHz
45
pF
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
CL = 50 pF
(see Note A)
LOAD CIRCUIT
S1
2
× VCC
500
Ω
500
Ω
tPLH
tPHL
Output
Control
(low-level
enabling)
Output
Waveform 1
S1 at 2
× VCC
(see Note B)
Output
Waveform 2
S1 at Open
(see Note B)
VOL
VOH
tPZL
tPZH
tPLZ
tPHZ
1.5 V
≈VCC
3 V
0 V
50% VCC
VOH
VOL
0 V
50% VCC
VOL + 0.3 V
50% VCC
≈0 V
3 V
Open
Input
Output
VOLTAGE WAVEFORMS
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
2
× VCC
Open
TEST
S1
VOH 0.3 V
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 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.
D. The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74ACT240PWLE | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74ACT240PWR | 功能描述:緩沖器和線路驅(qū)動器 Tri-State Octal RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SN74ACT240PWRE4 | 功能描述:緩沖器和線路驅(qū)動器 Octal Buffer/Driver With 3-State Outputs RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SN74ACT240PWRG4 | 功能描述:緩沖器和線路驅(qū)動器 Octal Buffer/Driver With 3-State Outputs RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SN74ACT241DBLE | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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