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74HC91 PDF даташит

Спецификация 74HC91 изготовлена ​​​​«Philips» и имеет функцию, называемую «Nine wide Schmitt trigger buffer open drain outputs».

Детали детали

Номер произв 74HC91
Описание Nine wide Schmitt trigger buffer open drain outputs
Производители Philips
логотип Philips логотип 

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74HC91 Даташит, Описание, Даташиты
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/HCT9115
Nine wide Schmitt trigger buffer;
open drain outputs
Product specification
Supersedes data of March 1988
File under Integrated Circuits, IC06
December 1990









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74HC91 Даташит, Описание, Даташиты
Philips Semiconductors
Nine wide Schmitt trigger buffer;
open drain outputs
Product specification
74HC/HCT9115
FEATURES
Schmitt trigger action on all data inputs
Output capability: standard (open drain)
ICC category: MSI
GENERAL DESCRIPTION
The 74HC/HCT9115 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/HCT9115 are nine wide Schmitt trigger buffer
with open drain outputs and Schmitt trigger inputs.
The Schmitt trigger action in the data inputs transform
slowly changing input signals into sharply defined
jitter-free output signals.
The 74HC/HCT9115 have open-drain N-transistor
outputs, which are not clamped by a diode connected to
VCC. In the OFF-state, i.e. when one input is HIGH, the
output may be pulled to any voltage between GND and
VOmax. This allows the device to be used as a
LOW-to-HIGH or HIGH-to-LOW level shifter. For digital
operation and OR-tied output applications, these devices
must have a pull-up resistor to establish a logic HIGH level.
The “9115” is identical to the “9114” but has non-inverting
outputs.
QUICK REFERENCE DATA
GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns
SYMBOL PARAMETER
CONDITIONS
tPHL/ tPLZ
CI
CPD
propagation delay An to Yn
input capacitance
power dissipation capacitance per buffer
CL = 15 pF; VCC = 5 V
notes 1 and 2
Notes
1. CPD is used to determine the dynamic power dissipation (PD in µW):
PD = CPD × VCC2 × fi + ∑ (CL × VCC2 × fo) where:
fi = input frequency in MHz
fo = output frequency in MHz
(CL × VCC2 × fo) = sum of outputs
CL = output load capacitance in pF
VCC = supply voltage in V
2. For HC the condition is VI = GND to VCC
For HCT the condition is VI = GND to VCC 1.5 V
ORDERING INFORMATION
See “74HC/HCT/HCU/HCMOS Logic Package Information”.
TYPICAL
HC
12
3.5
5
HCT
13
3.5
5
UNIT
ns
pF
pF
December 1990
2









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74HC91 Даташит, Описание, Даташиты
Philips Semiconductors
Nine wide Schmitt trigger buffer;
open drain outputs
PIN DESCRIPTION
PIN NO.
1, 2, 3, 4, 5, 6, 7, 8, 9
10
19, 18, 17, 16, 15, 14, 13, 12, 11
20
SYMBOL
A0 to A8
GND
Y0 to Y8
VCC
Product specification
74HC/HCT9115
NAME AND FUNCTION
data inputs
ground (0 V)
data outputs
positive supply voltage
alfpage
1 A0
2 A1
3 A2
4 A3
5 A4
6 A5
7 A6
8 A7
9 A8
Y 0 19
Y 1 18
Y 2 17
Y 3 16
Y 4 15
Y 5 14
Y 6 13
Y 7 12
Y 8 11
MBA016
Fig.1 Pin configuration.
Fig.2 Logic diagram.
fpage
1
2
3
4
5
6
7
8
9
19
18
17
16
15
14
13
12
MBA013
11
Fig.3 IEC logic diagram.
December 1990
3










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