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74AHC273D PDF даташит

Спецификация 74AHC273D изготовлена ​​​​«NXP Semiconductors» и имеет функцию, называемую «Octal D-type flip-flop with reset; positive-edge trigger».

Детали детали

Номер произв 74AHC273D
Описание Octal D-type flip-flop with reset; positive-edge trigger
Производители NXP Semiconductors
логотип NXP Semiconductors логотип 

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74AHC273D Даташит, Описание, Даташиты
INTEGRATED CIRCUITS
DATA SHEET
74AHC273; 74AHCT273
Octal D-type flip-flop with reset;
positive-edge trigger
Product specification
File under Integrated Circuits, IC06
1999 Sep 01









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74AHC273D Даташит, Описание, Даташиты
Philips Semiconductors
Octal D-type flip-flop with reset;
positive-edge trigger
Product specification
74AHC273; 74AHCT273
FEATURES
Ideal buffer for MOS microcontroller or memory
Common clock and master reset
ESD protection:
HBM EIA/JESD22-A114-A exceeds 2000 V
MM EIA/JESD22-A115-A exceeds 200 V
CDM EIA/JESD22-C101 exceeds 1000 V
Balanced propagation delays
All inputs have Schmitt trigger actions
Inputs accepts voltages higher than VCC
See ‘377’ for clock enable version
See ‘373’ for transparent latch version
See ‘374’ for 3-state version
For AHC only: operates with CMOS input levels
For AHCT only: operates with TTL input levels
Specified from 40 to +85 °C and 40 to +125 °C.
DESCRIPTION
The 74AHC/AHCT273 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 74AHC/AHCT273 have eight 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 state of each D input, one set-up time before the
LOW-to-HIGH clock transition, is transferred to the
corresponding output (Qn) of the flip-flop.
All outputs will be forced LOW independently of clock or
data inputs by a LOW on the MR input.
The device is useful for applications where the true output
only is required and the clock and master reset are
common to all storage elements.
QUICK REFERENCE DATA
Ground = 0 V; Tamb = 25 °C; tr = tf 3.0 ns.
SYMBOL
PARAMETER
CONDITIONS
tPHL/tPLH
fmax
CI
CO
CPD
propagation delay
CP to Qn
MR to Qn
maximum clock frequency
input capacitance
output capacitance
power dissipation
capacitance
CL = 15 pF; VCC = 5 V
CL = 15 pF; VCC = 5 V
VI = VCC or GND
CL = 50 pF; f = 1 MHz;
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 Volts.
2. The condition is VI = GND to VCC.
TYPICAL
AHC
AHCT
4.2 4.0
3.7 3.9
120 120
3.0 3.0
4.0 4.0
14.0 18.0
UNIT
ns
ns
MHz
pF
pF
pF
1999 Sep 01
2









No Preview Available !

74AHC273D Даташит, Описание, Даташиты
Philips Semiconductors
Octal D-type flip-flop with reset;
positive-edge trigger
Product specification
74AHC273; 74AHCT273
FUNCTION TABLE
See note 1.
OPERATING MODES
reset (clear)
load ‘1’
load ‘0’
INPUTS
MR CP
LX
H
H
Note
1. H = HIGH voltage level;
h = HIGH voltage level one set-up time prior to the HIGH-to-LOW LE transition;
L = LOW voltage level;
I = LOW voltage level one set-up time prior to the HIGH-to-LOW LE transition;
X = don’t care;
= LOW-to-HIGH transition.
Dn
X
h
l
OUTPUTS
Qn
L
L
L
ORDERING INFORMATION
OUTSIDE NORTH
AMERICA
74AHC273D
74AHC273PW
74AHCT273D
74AHCT273PW
NORTH AMERICA
74AHC273D
74AHC273PW DH
74AHCT273D
7AHCT273PW DH
PINS
20
20
20
20
PACKAGES
PACKAGE MATERIAL
SO
TSSOP
SO
TSSOP
plastic
plastic
plastic
plastic
CODE
SOT163-1
SOT360-1
SOT163-1
SOT360-1
PINNING
PIN SYMBOL
1 MR
2, 5, 6, 9, 12, 15, 16 and 19 Q0 to Q7
3, 4, 7, 8, 13, 14, 17 and 18 D0 to D7
10 GND
11 CP
20 VCC
DESCRIPTION
master reset input (active LOW)
flip-flop outputs
data inputs
ground (0 V)
clock input (LOW-to-HIGH; edge-triggered)
DC supply voltage
1999 Sep 01
3










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