|
|
PDF UPB8288 Data sheet ( Hoja de datos )
| Número de pieza | UPB8288 | |
| Descripción | CPU SYSTEM BUS CONTROLLER | |
| Fabricantes | NEC | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de UPB8288 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
|
No Preview Available !
NEe Microcomputers, Inc.
NEe
fL PB8288
~rna[~~~~ffirnw
JLPD8086/8088 CPU SYSTEM BUS CONTROLLER
OESCR IPTION
The /lPB8288 bus controller is for use in medium to large /lPD8086/8088 systems. This
20-pin bipolar component provides command and control timing generation, plus
bipolar drive capability and optimal system performance. It provides both
MultibusTM command signals and control outputs for the microprocessor system.
There is an option to use the controller with a multi·master system bus and separate
I/O bus.
FEATURES
• System Controller for /JPD8086/8088 Systems
• Bipolar Drive Capability
• Provides Advanced Commands
• Tri·State Output Drivers
• Can be used with an I/O Bus
• Enables Interface to One or Two Multi-Master Buses
• 20-Pin Package
PIN CONFIGURATION
lOB
ClK
51
DT/R
ALE
AEN
MRDC
AMWC
"MWTC
GND
VCC
So
S2
MCE/PDEN
DEN
CEN
INTA
iORC
AIOWC
iOwC
PIN NAMES
SO·S2
Status Input Pins
ClK
Clock
ALE
Address latch Enable
DEN
Data Enable
DT/R
Am
Data Transmit/Receive
Address Enable
CEN
Command Enable
lOB I/O Bus Mode
AIOWC
Advanced I/O Write
10WC
I/O Write Command
10RC
I/O Read Command
~
Advanced Memory Write
MWTC
Memory Write Command
MRDC
Memory Read Command
INTA
Interrupt Acknowledge
MCE/PDEN Master Cascade/Peripheral
D"ta Enable
TM -. Multibus is a trademark of Intel Corp.
687
1 page  
JLPB8288
DC CHARACTE RISTICS
Vcc = 5V ± 10%, Ta = O·C to 70°C
PARAMETER
SYMBOL
Input Clamp Voltage
Vc
Power Supply Current
Forward Input Current
Reverse Input Current
Output Low Voltage - Command Outputs
Control OutputS
ICC
'F
'R
VOL
Output High Voltage - Command Outputs
Control Outputs
VOH
Input Low Voltage
V,L
Input High Voltage
V,H
Output Off Current
IOFF
MIN
2.4
2.4
2,0
MAX
-1
230
-0.7
50
0.5
0.5
0.8
100
UNIT
V
mA
mA
~A
V
V
V
V
V
V
~A
TEST CONOITIONS
Ic=-5mA
VF = 0.45V
VR = VCC
IOL =32 mA
'OL=16mA
'OH=-5mA
IOH =-1 mA
VOFF = 0.4 to 5.25V
AC CHARACTERISTICS
VCC= 5V ± 10%, Ta= o"Ct070°C
TIMING REOUIREMENTS
PARAMETER
SYMBOL
MIN
MAX
elK Cycle Period
TCLCL
125
elK Low Time
TCLCH
66
eLK High Time
TCHCL
40
Status Active Setup Time
TSVCH
65
Status Active Hold Time
TCHSV
10
Status Inactive Setup Time
TSHCL
55
Status Inactive Hold Time
TCLSH
10
UNIT
ns
ns
ns
ns
ns
ns
ns
LOADING
TIMING RESPONSES
PARAMETER
SYMBOL
MIN
Control Active Delay
Control Inactive Delay
ALE MCE Active Delay (from elK)
ALE MCE Active Delsy (from Status)
ALE Inactive Delay
Command Active DelaY
Command Inactive Delay
Direction Control Active Delay
Direction Control Inactive Delay
Command Enable Time
Command Disable Time
Enable Delay Time
AEN to OEN
CEN to DEN, PDEN
CEN to Command
TCVNV
TCVNX
TCLLH, TCLMCH
TSVLH, TSVMCH
TCHLL
TCLML
TCLMH
TCHDTL
TCHDTH
TAELCH
TAEHCZ
TAELCV
TAEVNV
TCEVNV
TCELRH
5
10
10
10
105
MAX
45
45
15
15
15
35
35
50
30
40
40
275
20
20
TCLML
UNIT
ns
ns
ns
ns
ns
n.
nn..
n.
n.
n.
n.
ns
ns
ns
LOAOING
}~"IORC
~
IOl'" 32 mA
iOWC
IOH'" -SmA
iNfA
CL = 300 pF
AMWC
AiOWC
Other
j IOL= 1SmA
IOH=-1 mA
I CL = 80 pF
691
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet UPB8288.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| UPB8282 | (UPB8282 / UPB8283) 8-BIT LATCHES | NEC |
| UPB8283 | (UPB8282 / UPB8283) 8-BIT LATCHES | NEC |
| UPB8284 | CLOCK GENERATOR AND DRIVER | NEC |
| UPB8284A | CLOCK GENERATOR AND DRIVER | NEC |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |