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PDF NJU3754 Data sheet ( Hoja de datos )
| Número de pieza | NJU3754 | |
| Descripción | 11-BIT PARALLEL TO SERIAL CONVERTER | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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NJU3754
PRELIMINARY
11-BIT PARALLEL TO SERIAL CONVERTER
GENERAL DESCRIPTION
The NJU3754 is an 11-bit parallel to serial converter
especially applying to MCU input port expander. It can
operate from 2.7V to 5.5V.
The NJU3754 requires only 3-port of MCU for data
transmission and realizes the effective input port
assignment.
The status of the input ports is output through a latch
circuit, a shift register and a 3-state buffer as the serial
data synchronizing with the serial clock. The hysteresis
input circuit of the serial clock terminal realizes 5MHz
and more operation.
Furthermore, pull-up resistors on chip of P0 to P10
terminals reduce external components for key-scan
circuit, etc.
PACKAGE OUTLINE
NJU3754V
FEATURES
11-Bit Parallel In Serial Out
3-line Serial Interface Output
Hysteresis Input
0.5V typ at 5V
Maximum Operating Frequency 5MHz and more
Operating Voltage
2.7 to 5.5V
C-MOS Technology
Package Outline
SSOP16
BLOCK DIAGRAM
P0
P1
P2
VSS
VDD
PIN CONFIGURATION
P0 1
P1 2
P2 3
P3 4
P4 5
P5 6
P6 7
VSS 8
16
15
14
13
12
11
10
9
VDD
CE
CLK
SO
P10
P9
P8
P7
SO
P9
P10
Control Circuit
CE
CLK
Ver.2004-03-15
-1-
1 page  
TIMING CHARTS
CE
P0~P10
CLK
SO
CE
SO
NJU357554
tSPL
tHPL
VALID
tHS tSS
tCYC
tDSL
tF tWCL
tWCH
tR
tDSS
tWEH
tDSZ
Ver.2004-03-15
-5-
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet NJU3754.PDF ] | |
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