74HCT174 PDF даташит
Спецификация 74HCT174 изготовлена «Philips» и имеет функцию, называемую «Hex D-type flip-flop with reset; positive-edge trigger». |
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Детали детали
Номер произв | 74HCT174 |
Описание | Hex D-type flip-flop with reset; positive-edge trigger |
Производители | Philips |
логотип |
13 Pages
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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/HCT174
Hex D-type flip-flop with reset;
positive-edge trigger
Product specification
Supersedes data of September 1993
File under Integrated Circuits, IC06
1998 Jul 08
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Philips Semiconductors
Hex D-type flip-flop with reset; positive-edge trigger
Product specification
74HC/HCT174
FEATURES
• Six edge-triggered D-type flip-flops
• Asynchronous master reset
• Output capability: standard
• ICC category: MSI
GENERAL DESCRIPTION
The 74HC/HCT174 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/HCT174 have six edge-triggered D-type
flip-flops with individual D inputs and Q outputs. The
common clock (CP) and master reset (MR) inputs load and
reset (clear) all flip-flops simultaneously.
The register is fully edge-triggered. The state of each D
input, one set-up time prior to the LOW-to-HIGH clock
transition, is transferred to the corresponding output of the
flip-flop.
A LOW level on the MR input forces all outputs LOW,
independently of clock or data inputs.
The device is useful for applications requiring true outputs
only and clock and master reset inputs that are common to
all storage elements.
QUICK REFERENCE DATA
GND = 0 V; Tamb= 25 °C; tr = tf = 6 ns
SYMBOL
PARAMETER
CONDITIONS
tPHL/ tPLH
fmax
CI
CPD
propagation delay
CP to Qn
MR to Qn
maximum clock frequency
input capacitance
power dissipation
capacitance per flip-flop
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
TYPICAL
HC HCT
17 18
13 17
99 69
3.5 3.5
17 17
UNIT
ns
ns
MHz
pF
pF
1998 Jul 08
2
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Philips Semiconductors
Hex D-type flip-flop with reset; positive-edge trigger
Product specification
74HC/HCT174
ORDERING INFORMATION
TYPE
NUMBER
74HC174N;
74HCT174N
74HC174D;
74HCT174D
74HC174DB;
74HCT174DB
74HC174PW;
74HCT174PW
NAME
DIP16
PACKAGE
DESCRIPTION
plastic dual in-line package; 16 leads (300 mil); long body
SO16 plastic small outline package; 16 leads; body width 3.9 mm
SSOP16 plastic shrink small outline package; 16 leads; body width 5.3 mm
TSSOP16 plastic thin shrink small outline package; 16 leads; body width 4.4 mm
VERSION
SOT38-1
SOT109-1
SOT338-1
SOT403-1
PIN DESCRIPTION
PIN NO.
1
2, 5, 7, 10, 12, 15
3, 4, 6, 11, 13, 14
8
9
16
SYMBOL
MR
Q0 to Q5
D0 to D5
GND
CP
VCC
NAME AND FUNCTION
asynchronous master reset (active LOW)
flip-flop outputs
data inputs
ground (0 V)
clock input (LOW-to-HIGH, edge-triggered)
positive supply voltage
Fig.1 Pin configuration.
Fig.2
Fig.3 IEC logic symbol.
1998 Jul 08
3
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Номер в каталоге | Описание | Производители |
74HCT173 | Quad D-type flip-flop; positive-edge trigger; 3-state | Philips |
74HCT174 | Hex D-type flip-flop with reset; positive-edge trigger | Philips |
74HCT174D | Hex D-type flip-flop with reset; positive-edge trigger | Philips |
74HCT174DB | Hex D-type flip-flop with reset; positive-edge trigger | Philips |
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