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參數資料
| 型號： | 74HC540 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Octal buffer/line driver; 3-state; inverting |
| 中文描述： | 八路緩沖器/線路驅動器，3態(tài);反相 |
| 文件頁數： | 2/7頁 |
| 文件大?。?/td> | 51K |
| 代理商： | 74HC540 |
December 1990
2
Philips Semiconductors
Product specification
Octal buffer/line driver; 3-state;
inverting
74HC/HCT540
FEATURES
Inverting outputs
Output capability: bus driver
I
CC
category: MSI
GENERAL DESCRIPTION
The 74HC/HCT540 are high-speed Si-gate CMOS devices
and are pin compatible with low power Schottky TTL
(LSTTL). They are specified in compliance with JEDEC
standard no. 7A.
The 74HC/HCT540 are octal inverting buffer/line drivers
with 3-state outputs. The 3-state outputs are controlled by
the output enable inputs OE
1
and OE
2
.
A HIGH on OE
n
causes the outputs to assume a high
impedance OFF-state.
The “540” is identical to the “541” but has inverting outputs.
QUICK REFERENCE DATA
GND = 0 V; T
amb
= 25
°
C; t
r
= t
f
= 6 ns
Notes
1.
C
PD
is used to determine the dynamic power dissipation (P
D
in
μ
W):
P
D
= C
PD
×
V
CC2
×
f
i
+ ∑
(C
L
×
V
CC2
×
f
o
) where:
f
i
= input frequency in MHz
f
o
= output frequency in MHz
∑
(C
L
×
V
CC2
×
f
o
) = sum of outputs
C
L
= output load capacitance in pF
V
CC
= supply voltage in V
For HC the condition is V
I
= GND to V
CC
For HCT the condition is V
I
= GND to V
CC
1.5 V
2.
ORDERING INFORMATION
See
“74HC/HCT/HCU/HCMOS Logic Package Information”
.
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
HC
HCT
t
PHL
/ t
PLH
C
I
C
PD
propagation delay A
n
to Y
n
input capacitance
power dissipation capacitance per buffer notes 1 and 2
C
L
= 15 pF; V
CC
= 5 V
9
3.5
39
11
3.5
44
ns
pF
pF
相關PDF資料 |
PDF描述 |
|---|---|
| 74HCT541 | Octal buffer/line driver; 3-state |
| 74HC541 | Octal buffer/line driver; 3-state |
| 74HC541 | Octal Buffers/Line Drivers (with 3-state outputs) |
| 74HC541 | High Speed CMOS Logic Octal Buffer and Line Drivers, Three-State |
| 74HC541 | OCTAL BUS BUFFER INVERTING/NON-INVERTING, 3-STATE OUTPUTS |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 74HC540A | 制造商:Toshiba America Electronic Components 功能描述: |
| 74HC540D | 功能描述:緩沖器和線路驅動器 OCT BUF/DRVR INV 3ST RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量: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 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| 74HC540D(BJ) | 功能描述:Buffer, Inverting 1 Element 8 Bit per Element Push-Pull Output 20-SOIC 制造商:toshiba semiconductor and storage 系列:74HC 包裝:剪切帶（CT） 零件狀態(tài):在售 邏輯類型:緩沖器，反向 元件數:1 每元件位數:8 輸入類型:- 輸出類型:推挽式 電流 - 輸出高，低:7.8mA，7.8mA 電壓 - 電源:2 V ~ 6 V 工作溫度:-40°C ~ 85°C（TA） 安裝類型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應商器件封裝:20-SOIC 標準包裝:1 |
| 74HC540D,652 | 功能描述:緩沖器和線路驅動器 OCT BUF/DRVR INV 3ST RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量: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 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| 74HC540D,653 | 功能描述:緩沖器和線路驅動器 OCTAL BUFFER/DRIVER INV 3-S RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量: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 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
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