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PDF 74HCT594 Data sheet ( Hoja de datos )
| Número de pieza | 74HCT594 | |
| Descripción | 8-BIT SHIFT REGISTER | |
| Fabricantes | Diodes | |
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74HCT594
8-BIT SHIFT REGISTER WITH 8-BIT OUTPUT REGISTER
Description
Pin Assignments
The 74HCT594 is a high speed CMOS device that is designed to be
pin compatable with 74LS low power Schottky types.
An eight bit shift register accepts data from the serial input (DS) on
each positive transition of the shift register clock (SHCP). When
asserted low the shift register reset function (SHR) sets all shift
register values to zero and is independent of all clocks. Also when
asserted low the storage register reset function (STR) sets all shift
register values to zero and is independent of all clocks
Data from the input serial shift register is placed in the output
register with a rising pulse on the storages resister clock (STCP).
The storage resister includes output Q7S which is used for
cascading information between devices. As the information moves
into the storage register, it is asserted on the push-pull outputs Q0-
Q7.
All registers capture data on rising edge and change output on the
falling edge. If both clocks are connected together, the input shift
register is always one clock cycle ahead of the output register.
Features
• Wide Supply Voltage Range from 4.5V to 5.5V
• Sinks or sources 8mA at VCC = 4.5V
• CMOS low power consumption
• Schmitt Trigger Action at All Inputs
• Inputs accept up to 6.0V
• ESD Protection Tested per JESD 22
Exceeds 200-V Machine Model (A115-A)
Exceeds 2000-V Human Body Model (A114-A)
Exceeds 1000-V Charged Device Model (C101C)
• Latch-Up Exceeds 250mA per JESD 78, Class II
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
Applications
• General Purpose Logic
• Serial to Parallel Data conversion
• Capture and hold data for extended periods of time.
• Allow simple serial bit streams from a microcontroller to
control as many peripheral lines as needed.
• Wide array of products such as:
o Computer peripherals
o Appliances
o Industrial control
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 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 < 1000 ppm antimony compounds.
Click for Ordering Information
74HCT594
Document number: DS35491 Rev. 2 - 2
1 of 12
www.diodes.com
June 2013
© Diodes Incorporated
1 page  
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
74HCT594
Symbol Parameter Test Conditions
VIH
VIL
VOH
VOL
II
ICC
ICC
Ci
High-level
Input Voltage
Low-level input
voltage
High Level
IOH = -20μA
Output Voltage All outputs
Q7S output
IOH = -4.0mA
Qn Bus
Outputs
IOH = -6.0 mA
Low-level
IOL = 20μA
Output Voltage All outputs
Q7S output
IOL = 4.0mA
Qn Bus
Outputs
IOL = 6.0mA
Input Current
VI =GND to
5.5 V
Supply Current
VI = GND or
VCC IO=0
Test Per PINS
Pin SHCP
VI = Vcc SHST
Additional
-2.1 V
SHR
Supply Current Other
STR
VI = Vcc
or GND
IO=0
PIN
DS
Input
Capacitance
Vi = VCC
or GND
5.5 V
VCC
4.5 V to 5.5 V
4.5 V to 5.5 V
4.5 V
4.5 V
4.5 V
4.5 V
4.5 V
4.5 V
5.5 V
5.5 V
4.5V to 5.5 V
4.5V to 5.5 V
TA = +25°C
Min Typ Max
2.0 1.6
0.8
4.4 4.5
3.98 4.32
3.98 4.32
0 0.1
0.15 0.26
0.16 0.26
±0.1
8.0
100 240
75 120
3.5 10
-40°C to +85°C
Min Max
2.0
0.8
4.4
3.85
3.85
0.1
0.33
0.33
±1
80
300
150
10
-40°C to +125°C
Min Max
2.0
Unit
V
0.8 V
4.4
V
3.7
3.7
0.1
V
0.4
0.4
± 1 μA
160 μA
300
μA
150
10 pF
Operating Characteristics
Parameter
Cpd
Power dissipation
capacitance
Test
Conditions
f = 1 MHz all outputs switching-no load
VI = GND TO VCC – 1.5V
VCC = 5V
TYP
51
Unit
pF
74HCT594
Document number: DS35491 Rev. 2 - 2
5 of 12
www.diodes.com
June 2013
© Diodes Incorporated
5 Page 
74HCT594
Suggested Pad Layout
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.
Package Type: SO-16
Y1
X1
Dimensions
C
X
X1
Y
Y1
Value (in mm)
1.270
0.670
9.560
1.450
6.400
Pin 1
X
Package Type: TSSOP-16
C
X1
Y
Y1
Y (16x)
Dimensions
C
X
X1
Y
Y1
Value (in mm)
0.650
0.350
4.900
1.400
6.800
1
X (16x)
C
74HCT594
Document number: DS35491 Rev. 2 - 2
11 of 12
www.diodes.com
June 2013
© Diodes Incorporated
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet 74HCT594.PDF ] | |
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