NJU3714A データシートの表示（PDF） - Japan Radio Corporation
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NJU3714A Datasheet PDF : 8 Pages
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NJU3714A
12-BIT SERIAL TO PARALLEL CONVERTER
GENERAL DESCRIPTION
The NJU3714A is a 12-bit serial to parallel converter
especially applying to MPU outport expander. It can
operate from 2.4V to 5.5V.
The effective outport assignment of MPU is available
as the connection between NJU3714A 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 NJU3714A outputs the serial data
from SO terminal through the shift register. Therefore, it
connects with other SIPO ICs like as NJU3711A 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
12-Bit Serial In Parallel Out
Cascade Connection
Hysteresis Input
0.5V typ at 5V
Operating Voltage
2.4 to 5.5V
Maximum Operating Frequency 5MHz and more
Output Current
25mA at 5V, 5mA at 3V
C-MOS Technology
Package Outline
SSOP20
BLOCK DIAGRAM
PACKAGE OUTLINE
NJU3714AV
PIN CONFIGURATION
P5
1
P6
2
P7
3
P8
4
VSS
5
P9
6
P10
7
P11
8
P12
9
SO
10
20
VDD
19
P4
18
P3
17
P2
16
P1
15
VSS
14
CLR
13
STB
12
CLK
11
DATA
NJU3714AV
DATA
P1
P2
CLK
P3
P11
P12
SO
STB
CLR
Controller Circuit
Ver.2003-11-18
-1-
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