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Número de pieza | FM3540SM14 | |
Descripción | 4/5 Bit Multiplexed/ 1 Bit Latched Port with Standard 2-Wire Bus Interface and Non-Volatile Latches | |
Fabricantes | Fairchild Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de FM3540SM14 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
No Preview Available ! October 2001
FM3540/60
4/5 Bit Multiplexed, 1 Bit Latched Port with Standard
2-Wire Bus Interface and Non-Volatile Latches
General Description
The FM3540/60 multiplexes the I-port input signals with two
internal non-volatile registers that can be loaded through the serial
port. The multiplexer is selected via the serial port and defaults to
the I-Port upon power-up. Pull-up resistors are provided on the
input port to accommodate connections to open drain outputs and
to eliminate the need for external resistors. The device supports
a choice of either 2.5V output or Open Drain Outputs for easy
interface to devices with different VDD Levels.
The serial port is an IIC compatible slave only interface and
supports both 100kbits and 400kbits modes of operation. The port
is used to read the I-Port, Write Data to the internal non-volatile
registers and select whether the I-Port or one of the internal non-
volatile registers is output to the Y-port. The FM3540/60 is
fabricated with an advanced CMOS technology to achieve high
density and low power.
Features
I Extended Operating Voltage Range 3.0V-5.5V
I IIC Compatible Slave Interface.
I ESD performance: Human body model > 2000V
I Choice of 2.5V outputs or Open-Drain Outputs
Block Diagram
Non_Mux_Out
I[4:0]
SOPRA
SOPRB
IIC Read Logic
Mux3
SDA
SCL
IIC
Interface
Start/Stop
Logic
Shift
Register
Mux2
MXSB, MXSA
Y[4:0]
Mux1
Control Logic
MUXSEL
OVRD
Slave Address
Register
Comparator
ASEL
© 2001 Fairchild Semiconductor Corporation
FM3540/60 Rev. C
1
www.fairchildsemi.com
1 page Absolute Maximum Ratings (Note 1)
Supply Voltage (VCC )
DC Input Voltage (VI)
Output Voltage (VO)
Outputs 3-STATED
Outputs Active (Note 2)
DC Input Diode Current (IIK) VI < 0V
DC Output Diode Current (IOK)
VO < 0V
VO > Vcc
DC Output Source/Sink Current (IOH/IOL)
DC Vcc or Ground Current per
Supply Pin (ICC or Ground)
Storage Temperature Range (TSTG)
-0.5V to +6.5V
-0.5V to +6.5V
-0.5V to +6.5V
-0.5 to VCC+0.5V
-50mA
-50mA
+50mA
±50mA
±100mA
-65°C to +150°C
Recommended Operating Conditions
(Note 3)
Power Supply
3.0V to 5.5V
Input Voltage
-0.3V to 5.5V
Output Voltage (VO)
Output Current IOL
Free Air Operating Temperature(TA)
0V TO VCC
3mA
-0°C to +70°C
Minimum Input Edge Rate (dT/dV)
VIN = 0.8V to 2.0V, Vcc = 3.0V
10nS/V
Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The
parametric values defined in the “Electrical Characteristics” table are not guaranteed at the Absolute Maximum Ratings. The “Recommended Operating Conditions” table will
define the conditions for actual device operation.
Note 2: IO Absolute Maximum Rating must be observed.
Note 3: Floating or unused pins (inputs or I/O’s) must be held HIGH or LOW.
DC Electrical Characteristics (4.5V < VCC ≤ 5.5V)
Symbol
Parameter
Conditions
VIH High Level Input Voltage
VIL Low Level Input Voltage
VOL Low Level Output Voltage
IIR Input Leakage Current
ICC Quiescent Supply Current
IOL = 100µA
IOL = 3mA
VI=VIL
VI = VCC or GND
VCC ≤ (VaI, VO) ≤ 3.6V
VCC (V)
4.5 - 5.5
4.5 - 5.5
4.5 - 5.5
5.5
4.5 - 5.5
Min
VCC x 0.7
-10
300
Max
VCC x 0.3
0.2
0.4
+10
975
Units
V
V
V
µA
µA
DC Electrical Characteristics Extended (3.0V ≤ VCC ≤ 5.5V)
Symbol
Parameter
Conditions
Vcc (V)
VIH High Level Input Voltage
VIL Low Level Input Voltage
VOL Low Level Output Voltage
VOH Output High Voltage
3.0 - 5.5
3.0 - 5.5
IOL = 100µA
IOL = 3mA
Fixed output mode, ('s' grade
samples, or FM3560 with
LEVEL input = logical ‘0’) 1
TTL load, 50pf capacitance
3.0 - 5.5
3.0 - 5.5
IIR Input Leakage Current
ICC Quiescent Supply Current
VI=VIL
VI = VCC or GND
VCC ≤ (VI, VO) ≤ 3.6V
5.5
3.0 - 5.5
Min
VCC x 0.7
2.3
-10
300
Max
VCC x 0.3
0.2
0.4
2.5
+10
975
Units
V
V
V
V
µA
µA
FM3540/60 Rev. C
5 www.fairchildsemi.com
5 Page |
Páginas | Total 10 Páginas | |
PDF Descargar | [ Datasheet FM3540SM14.PDF ] |
Número de pieza | Descripción | Fabricantes |
FM3540SM14 | 4/5 Bit Multiplexed/ 1 Bit Latched Port with Standard 2-Wire Bus Interface and Non-Volatile Latches | Fairchild Semiconductor |
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