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PDF 83C151SB Data sheet ( Hoja de datos )
| Número de pieza | 83C151SB | |
| Descripción | HIGH-PERFORMANCE CHMOS MICROCONTROLLER | |
| Fabricantes | Intel Corporation | |
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8XC151SA SB HIGH-PERFORMANCE CHMOS MICROCONTROLLER
Figure 3 8XC151SA SB 44-Lead PLCC Package
272814 – 3
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8XC151SA SB HIGH-PERFORMANCE CHMOS MICROCONTROLLER
Table 7 Signal Descriptions (Continued)
Signal
Name
Type
Description
Multiplexed
With
VSS
VSS1
GND
GND
Circuit Ground Connect this pin to ground
Secondary Ground This ground is provided to reduce ground bounce
and improve power supply bypassing Connection of this pin to ground
is recommended However when using the 8XC151SA SB as a pin-
for-pin replacement for the 8XC51BH VSS1 can be unconnected
without loss of compatibility (Not available on DIP)
VSS2
GND
Secondary Ground 2 This ground is provided to reduce ground
bounce and improve power supply bypassing Connection of this pin to
ground is recommended However when using the 8XC151SA SB as
a pin-for-pin replacement for the 8XC51FX VSS2 can be unconnected
without loss of compatibility (Not available on DIP)
WR O Write Write signal output to external memory
P3 6
XTAL1 I Input to the On-chip Inverting Oscillator Amplifier To use the
internal oscillator a crystal resonator circuit is connected to this pin If
an external oscillator is used its output is connected to this pin XTAL1
is the clock source for internal timing
XTAL2 O Output of the On-chip Inverting Oscillator Amplifier To use the
internal oscillator a crystal resonator circuit is connected to this pin If
an external oscillator is used leave XTAL2 unconnected
The descriptions of A15 8 P2 7 0 and AD7 0 P0 7 0 are for the nonpage-mode chip configuration (compatible with
44-lead PLCC and 40-pin DIP MCS 51 microcontrollers) If the chip is configured for page-mode operation port 0 carries
the lower address bits (A7 0) and port 2 carries the upper address bits (A15 8) and the data (D7 0)
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| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet 83C151SB.PDF ] | |
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