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Número de pieza | IN74LV164 | |
Descripción | 8-Bit Serial-In Parallel-Out Shift Register | |
Fabricantes | IK Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de IN74LV164 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
No Preview Available ! TECHNICAL DATA
8-BIT SERIAL-IN/PARALLEL-OUT SHIFT REGISTER
IN74LV164
The IN74LV164 is a low-voltage Si-gate CMOS device and is pin and
function compatible with the IN74HC/HCT164.
The IN74LV164 is an 8-bit edge-triggered shift register with serial
data entry and an output from each of the eight stages. Data is entered
serially through one of two inputs (DSA or DSB); either input can be used
as an active HIGH enable for data entry through the other input. Both
inputs must be connected together or an unused input must be tied HIGH.
Data shifts one place to the right on each LOW-to-HIGH transition of
the clock (CP) input and enters into Q0, which is the logical AND of the
two data inputs (DSA, DSB ) that existed one set-up time prior to the rising
clock edge.
A LOW on the master reset (MR) input overrides all other inputs and
clears the register asynchronously, forcing all outputs LOW.
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 1.2 to 5.5 V
• Low Input Current: 1.0 µA, 0.1 µА at Т = 25 °С
• Output Current: 6 mA at VCC = 3.0 V; 12 mA at VCC = 4.5 V
• High Noise Immunity Characteristic of CMOS Devices
N SUFFIX
PLASTIC DIP
14
1
14
1
D SUFFIX
SO
ORDERING INFORMATION
IN74LV164N
IN74LV164D
Plastic
SOIC
TA = -40° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
DSA 1
DSB 2
Q0 3
Q1 4
14 VCC
13 Q7
12 Q6
11 Q5
SERIAL DSA 1
DATA
INPUTS
DSB 2
DATA
8
CP
2 Q0
4 Q1
5 Q2
6 Q3
10 Q4
11 Q5
12 Q6
13 Q7
PARALLEL
DATA
OUTPUTS
Q2
Q3
GND
5
6
7
10 Q4
9 MR
8 CP
FUNCTION TABLE
Inputs
Outputs
MR 9
MR CP DSA DSB Q0 Q1 ... Q7
L X X X L L…L
PIN 14=VCC
www.datasheet4uP.INco7 =mGND
HL
HL
HH
HH
H = high voltage level
L = low voltage level
X = don’t care
L L Q0 ... Q6
H L Q0 ... Q6
L L Q0 ... Q6
H H Q0 ... Q6
1
1 page IN74LV164
tr
CP
10%
VM(1)
90%
tf
tw
1/fmax
tPLH
Q VM(1)
V1(2)
GND
t PHL
VOH
VOL
Figure 1. Switching Waveforms
DSA or DSB
CP
VM (1)
VALID
tsu th
VM (1)
V1(2)
GND
V1(2)
GND
MR
t PHL
Q
tw
VM(1)
VM(1)
CP
t rec
V
(1)
M
V1(2)
GND
VOH
VOL
V1(2)
GND
Figure 2. Switching Waveforms
TEST POINT
DEVICE
UNDER
TEST
OUTPUT
RL
CL*
Note:
Figure 3. Switching Waveforms
(1) VM = 1.5 V at VCC = 2.7 V
VM = 0.5 ⋅VCC at VCC =1.2 V, 2.0 V, 3.0 V, 4.5 V
(2) V1 = VCC at VCC =1.2 V, 2.0 V, 2.7 V, 4.5 V
V1 = 2.7 V at VCC = 3.0 V
* Includes all probe and jig capacitance
Figure 4. Test Circuit
TIMING DIAGRAM
CP
DSA
DSB
MR
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
5
5 Page |
Páginas | Total 6 Páginas | |
PDF Descargar | [ Datasheet IN74LV164.PDF ] |
Número de pieza | Descripción | Fabricantes |
IN74LV164 | 8-Bit Serial-In Parallel-Out Shift Register | IK Semiconductor |
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