NJU3718L#

Manufacturer Part NumberNJU3718L#
DescriptionIC 20BIT SRL TO PRL CONVTR28SDIP
ManufacturerNJR
NJU3718L# datasheet
 


Specifications of NJU3718L#

FunctionSerial to ParallelInput TypeSerial
Output TypeParallelNumber Of Inputs4
Number Of Outputs20Voltage - Supply4.5 V ~ 5.5 V
Operating Temperature-25°C ~ 85°CMounting TypeThrough Hole
Package / Case28-SDIP (0.400", 10.16mm)Lead Free Status / RoHS StatusLead free / RoHS Compliant
Data Rate-Other namesNJU#3718L
NJU#3718L
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20-BIT SERIAL TO PARALLEL CONVERTER
GENERAL DESCRIPTION
The NJU3718 is a 20-bit serial to parallel converter
especially applying to MPU outport expander.
The effective outport assignment of MPU is available
as the connection between NJU3718 and MPU using
only 4 lines.
The serial data synchronizing with 5MHz or more
clock can be input to the serial data input terminal and
the data are output from parallel output buffer through
serial in parallel out shift register and parallel data
latches.
Furthermore, the NJU3718 outputs the serial data
from SO terminal through the shift register. Therefore, it
connects with other SIPO ICs like as NJU3711 in
cascade for expanding the parallel conversion outputs.
The hysteresis input circuit realizes wide noise
margin and the high drive-ability output buffer (25mA)
can drive LED directly.
FEATURES
20-Bit Serial In Parallel Out
Hysteresis Input
0.5V typ
Operating Voltage
5V±10%
Maximum Operating Frequency 5MHz and more
Output Current
25mA
C-MOS Technology
Package Outline
SDIP28/SOP28/SDMP30
BLOCK DIAGRAM
DATA
CLK
STB
CLR
Ver.2003-11-18
PACKAGE OUTLINE
PIN CONFIGURATION
1
P9
P10
2
P11
3
4
P12
5
P13
P14
6
V
7
SS
NC
8
P15
9
P16
10
11
P17
P18
12
P19
13
P20
14
SO
15
NJU3718M
Controller Circuit
NJU3718
NJU3718G
NJU3718L
NJU3718M
V
30
1
P9
DD
29
P8
P10
2
P7
28
P11
3
27
P6
4
P12
P5
26
5
P13
25
P4
P14
6
P3
V
24
7
SS
23
NC
P15
8
22
V
P16
9
SS
21
P2
P17
10
20
P1
P18
11
19
CLR
P19
12
STB
18
P20
13
CLK
17
SO
14
16
DATA
NJU3718L/G
P1
P2
P3
P19
P20
SO
V
28
DD
27
P8
P7
26
25
P6
P5
24
23
P4
P3
22
V
21
SS
20
P2
P1
19
CLR
18
STB
17
CLK
16
DATA
15
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NJU3718L# Summary of contents

  • Page 1

    SERIAL TO PARALLEL CONVERTER GENERAL DESCRIPTION The NJU3718 is a 20-bit serial to parallel converter especially applying to MPU outport expander. The effective outport assignment of MPU is available as the connection between NJU3718 and MPU using only 4 ...

  • Page 2

    NJU3718 TERMINAL DESCRIPTION No. No. SDMP30 SDIP28/SOP28 ...

  • Page 3

    FUNCTIONAL DESCRIPTION (1) Reset When the "L" level is input to the CLR terminal, all latches are reset and all of parallel conversion output are "L" level. Normally, the CLR terminal should be "H" level. (2) Data Transmission In the ...

  • Page 4

    NJU3718 TIMING CHART CLK CLR STB DATA P10 P11 P12 P13 P14 P15 P16 P17 P18 P19 P20 Ver.2003-11-18 ...

  • Page 5

    ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Range Input Voltage Range Output Voltage Range Output Current Output Short Current (SO Terminal) (Note 5) Output Short Current (P1~P20 Terminals) (Note 5) Power Dissipation Operating Temperature Range Storage Temperature Range Note 2) All ...

  • Page 6

    NJU3718 SWITCHING CHARACTERISTICS PARAMETER Set-Up Time Hold Time Set-Up Time Hold Time Output Delay Time Maximum Operating Frequency Note 7) C =50pF OUT - =4.5~5.5V SYMBOL CONDITION t DATA-CLK SD t CLK-DATA HD STB-CLK t ...

  • Page 7

    SWITCHING CHARACTERISTICS TEST WAVEFORM CLK DATA STB CLK SO CLK STB P1~P20 CLK STB P1~P20 CLR DATA P1~P20 Ver.2003-11-18 f MAX HSTB t pd PSTB t pd PCLR NJU3718 NJU3555 NJU3555 t SSTB t pd ...

  • Page 8

    NJU3718 APPLICATION CIRCUIT (1) MPU APPLICATION CIRCUIT (2) (Combined with NJU3711) MPU - DATA CLK NJU3718 STB CLR DATA ...