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Datasheet 74HC7541 PDF ( 特性, スペック, ピン接続図 )

部品番号 74HC7541
部品説明 Octal Schmitt trigger buffer/line driver 3-state
メーカ Philips
ロゴ Philips ロゴ 
プレビュー
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74HC7541 Datasheet, 74HC7541 PDF,ピン配置, 機能
INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications
The IC06 74HC/HCT/HCU/HCMOS Logic Package Information
The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines
74HC/HCT7541
Octal Schmitt trigger buffer/line
driver; 3-state
Product specification
Supersedes data of March 1988
File under Integrated Circuits, IC06
December 1990

1 Page



74HC7541 pdf, ピン配列
Philips Semiconductors
Octal Schmitt trigger buffer/line driver; 3-state
Product specification
74HC/HCT7541
PIN DESCRIPTION
PIN NO.
1, 19
2, 3, 4, 5, 6, 7, 8, 9
10
18, 17, 16, 15, 14, 13, 12, 11
20
SYMBOL
OE1, OE2
A0 to A7
GND
Y0 to Y7
VCC
NAME AND FUNCTION
output enable inputs (active LOW)
data inputs
ground (0 V)
bus outputs
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
December 1990
3


3Pages


74HC7541 電子部品, 半導体
Philips Semiconductors
Octal Schmitt trigger buffer/line driver; 3-state
Product specification
74HC/HCT7541
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Transfer characteristics are given below (not applicable for OEn inputs).
Output capability: bus driver
ICC category: MSI
Note to HCT types
The value of additional quiescent supply current (ICC) for a unit load of 1 is given in the family specifications.
To determine ICC per input, multiply this value by the unit load coefficient shown in the table below.
INPUT
UNIT LOAD COEFFICIENT
OE1 1.30
OE2 1.30
An 0.20
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr = tf = 6 ns; CL = 50 pF
Tamb (°C)
TEST CONDITIONS
SYMBOL PARAMETER
74HCT
+25
40 to +85
40 to +125
UNIT
VCC
(V)
WAVEFORMS
min typ. max min. max min. max.
tPHL/ tPLH
tPZH/ tPZL
tPHZ/ tPLZ
tTHL/ tTLH
propagation delay
An to Yn
3-state output enable time
OEn to Yn
3-state output disable time
OEn to Yn
output transition time
19 32
18 32
20 32
5 12
40
40
40
15
48 ns 4.5 Fig.8
48 ns 4.5 Fig.8
48 ns 4.5 Fig.8
18 ns 4.5 Fig.8
TRANSFER CHARACTERISTICS FOR 74HCT
Voltages are referred to GND (ground = 0 V)
Tamb (°C)
TEST CONDITIONS
SYMBOL PARAMETER
74HCT
+25
40 to +85
40 to +125
UNIT
VCC
(V)
WAVEFORMS
min. typ. max. min. max. min. max.
VT+ positive-going threshold
2.0 2.0
2.1 2.1
2.0 V
2.1
4.5 Figs 6 and 7
5.5
VTnegative-going threshold 0.70
0.80
0.64 0.60 V 4.5 Figs 6 and 7
0.74 0.70
5.5
VH hysteresis (VT+ VT) 0.17 0.23
0.17 0.23
V 4.5 Figs 6 and 7
5.5
December 1990
6

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