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PDF NM95MS16 Data sheet ( Hoja de datos )
| Número de pieza | NM95MS16 | |
| Descripción | Plug and Play Front-End Devices for ISA-BUS Systems | |
| Fabricantes | Fairchild | |
| Logotipo |  |
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July 1998
NM95MS16
Plug and Play Front-End Devices for
ISA-BUS Systems
General Description
The NM95MS16 is the smaller of a family of devices designed to
provide complete Plug and Play Capability for ISA bus systems.
The NM95MS16 includes the necessary state machine logic to
manage the Plug and Play protocol in addition to switches for
steering Interrupt and DMA requests. It also features a built-in 2
kbits of serial EEPROM for storing the resource data specified in
the Plug and Play Standard. In addition, 4 kbits of EEPROM is
available for use by other on-board logic. This device provides a
“truly complete” single-chip solution for implementing Plug and
Play on ISA-Bus Adapter cards. The NM95MS16 supports one
logical device with a flexible choice of DMA/IRQ selection and I/O
Chipselect generation as well as offering 16-bit addressing in
Mode 1.
NM95MS16 is implemented using Fairchild’s Advanced CMOS
process and operates single power supply. The NM95MS16 is
available in a 48-pin TQFP package and 52-pin PLCC package.
Features
s Complete Implementation of Plug and Play Standard
— Direct interface to ISA bus
s Two modes of operation
— DMA mode
— Extended Interrupt mode (Windows® 95 logo
compatible)
s 6 or 8 ISA bus interrupt lines and 2 DRQ/DACK lines
supported
s On-chip EEPROM for resource request table
s Additional 4 kbits of on-chip EEPROM available for external
access
s 24 mA Drivers for Data outputs
s Complete compliance to ISA PnP specification (Ver. 1.0A)
s 48-Pin TQFP, and 52-Pin PLCC Packages
Block Diagram
From
ISA
Bus
Osc.
Rstdrv
Address
Control
State
Machine
Decoder
& Control
EEPROM
MICROWIRE Port
Register
Block
Data SD<0:7> ISA
Buffer
Bus
From
ISA
Bus
Address
Control
DACKx*
LIRQx
LDRQx
Function
Module
Support
Logic
IOCS<0:2>*
LDACKx*
IRQx
DRQx
To
ISA
Bus
DS012601-1
Windows® 95 is a registered trademark of Microsoft Corporation.
© 1998 Fairchild Semiconductor Corporation
1
www.fairchildsemi.com
1 page  
Absolute Maximum Ratings (Note 2)
Ambient Storage Temperature
-65°C to +150°C
All Input or Output Voltages
with Respect to Ground
Lead Temperature
(Soldering, 10 seconds)
VCC + 1V to -0.3V
+300°C
ESD Rating
2000V Min
Operating Conditions
Ambient Operating Temperature
NM95MS16
Positive Power Supply (VCC)
0°C to +70°C
4.5V to 5.5V
DC Electrical Characteristics
Symbol
Parameter
Test Conditions
ICCA Active Power Supply Current fSCL = 100 kHz
ILI Input Leakage Current
VIN = GND or VCC
ILO Output Leakage Current VOUT = GND to VCC
VIL Input Low Voltage
VIH Input High Voltage
VOL Output Low Voltage
IOL = 24 mA (Note 5)
IOL = 2.1 mA (Note 6)
VOH Output High Voltage
IOH = -3 mA (Note 5)
IOH = -400 µA (Note 6)
Limits
Units
Min Typ
Max
(Note 3)
15 mA
0.2 15 µA
15 µA
-0.1 0.8
V
2.0
VCC + 1.0
V
0.4 V
2.4 V
2.4 V
Capacitance TA = +25°C, f = 1.0 MHz, VCC = 5V
Symbol
Test
Conditions
CI/O (Note 4)
Input/Output Capacitance VI/O = 0V
CIN (Note 4)
Input Capacitance
VIN = 0V
COUT (Note 4) Output Capacitance
VOUT = 0V
Max
8
6
6
Units
pF
pF
pF
Note 2: Stress above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only, and functional operation of the
device at these or any other conditions above those indicated in the operational sections of the specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
Note 3: Typical values are for TA = 25°C and nominal supply voltage (5V).
Note 4: This parameter is periodically sampled and not 100% tested.
Note 5: These values are for ISA signals like SD[0:7], IRQx, DRQx.
Note 6: These values are for card signal like IOCS[0:3]*, DO(EEPROM).
AC Electrical Characteristics
Symbol
tAEN
tAC
tRVD
tAH
tRDH
tWD
tWDH
tCSA
tCSC
tIDD
Parameter
AEN Valid to Command Active
Address Valid to Command Active
Active Read to Valid Data
Address, AEN Hold from Inactive Command
Read Data Hold from Inactive Read
Write Data Valid before Write Active
Write Data Hold after Write Inactive
Chip Selects Valid from Address Valid
Chip Selects Valid from Command Active
Propagation Delay for IRQ/DRQ/DACK
Min
100
88
30
22
25
5
5
5
Max
200
5
25
25
25
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
5 www.fairchildsemi.com
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| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet NM95MS16.PDF ] | |
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