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PDF 74AHCT164 Data sheet ( Hoja de datos )
| Número de pieza | 74AHCT164 | |
| Descripción | 8-BIT PARALLEL-OUT SERIAL SHIFT REGISTERS | |
| Fabricantes | Diodes | |
| Logotipo |  |
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74AHCT164
400
8-BIT PARALLEL-OUT SERIAL SHIFT REGISTERS
Description
The 74AHCT164 is a serial input 8-bit edge-triggered shift register
that has outputs from each of eight stages. The device features TTL
compatible inputs.
SERIAL DATA INPUT PINS
The serial input data is entered at pin SDA or pin SDB as these are
logically ANDED. Either input could be used as an active HIGH
enable with data entry on the other pin. If a single input is desired,
the pins can be tied together or the unused input can be tied HIGH.
DATA ENTRY
Data is shifted into Q0 from the serial input pins on each LOW to
HIGH transition of the CP pin. Also during the CP edge the data is
transferred from each Qn to Qn+1. The serial data on pins DSA and
DSB must be stable before and after the CP rising edge to meet the
set-up and hold timing requirements.
RESET
When asserted LOW the Master Reset ( MR ) pin sets all Qn to LOW.
This action does not depend on the condition of serial input or clock
pins. The MR must be asserted HIGH for a recovery time before the
next CP positive edge pulse.
Pin Assignments
DSA
DSB
Q0
Q1
Q2
Q3
GND
( Top View )
1 14
2 13
3 12
4 11
5 10
69
78
Vcc
Q7
Q6
Q5
Q4
MR
CP
SO-14 / TSSOP-14 / PDIP-14
Features
Supply Voltage Range from 4.5V to 5.5V
Sinks or Sources 8mA at VCC = 4.5V
TTL Compatible Inputs
CMOS Low Power Consumption
Schmitt Trigger Action at All Inputs
ESD Protection Exceeds JESD 22
200-V Machine Model (A115)
2000-V Human Body Model (A114)
1000-V Charged Device Model (C101)
Range of Package Options SO-14 and TSSOP-14
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Applications
General Purpose Logic
Wide Array of Products Such as:
PCs, Networking, Notebooks, Netbooks
Computer Peripherals, Hard Drives, CD/DVD ROMs
TVs, DVDs, DVRs, Set-Top Boxes
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
Device ordering information is on page 7
74AHCT164
Document number: DS36282 Rev. 2 - 2
1 of 10
www.diodes.com
August 2015
© Diodes Incorporated
1 page  
Switching Characteristics
74AHCT164
400
Symbol /
Parameter
fMAX
Maximum
Frequency
tW
Pulse Width
Pins
CP
CP
HIGH or
LOW
Test
Conditions
Figure 1
CL = 15pF
CL = 50pF
-
LOW
-
tSU DSA or
Set-up Time DSB to CP
tH
Hold Time
DSA or
DSB to CP
tPD
Propagation
Dterelac y
Recovery Time
CP to Qn
to CP
tPHL
HIGH to LOW
Propagation
Delay
to Qn
-
-
CL = 15pF
CL = 50pF
-
CL = 15pF
CL = 50pF
VCC
4.5V to
5.0V
4.5V to
5.0V
4.5V to
5.0V
4.5V to
5.0V
4.5V to
5.0V
4.5V to
5.0V
4.5V to
5.0V
4.5V to
5.0V
TA = +25°C
Min Typ. Max
125 175
85 115
-
-
5.0 -
-
5.0 -
-
4.5 -
-
2.0 -
-
- 3.4 9.0
- 4.9 11.0
2.5 -
-
- 3.5 8.6
- 5.0 10.6
-40°C to +85°C
Min Max
105 -
75 -
-40°C to +125°C Unit
Min Max
-
85 -
65
MHz
-
5.0 - 5.0 - ns
5.0 - 5.0 - ns
4.5 - 4.5 - ns
2.0 - 2.0 - ns
1.0 10.5 1.0 11.5
ns
1.0 12.5 1.0 14.0
2.5 - - 2.5 ns
1.0 10.0 1.0 11.0
ns
1.0 12.0 1.0 13.5
Operating Characteristics (TA = +25°C, unless otherwise specified.)
Parameter
Test Conditions
Cpd
Power Dissipation Capacitance per
Gate
f = 1 MHz
CI
Input Capacitance
VI = VCC – or GND
VCC = 5.5V
Typ
51
3.5
Maximum
-
10
Unit
pF
pF
74AHCT164
Document number: DS36282 Rev. 2 - 2
5 of 10
www.diodes.com
August 2015
© Diodes Incorporated
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet 74AHCT164.PDF ] | |
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