N80960SA10 Intel, N80960SA10 Datasheet - Page 15

• Manufacturer Part Number: N80960SA10
• Description: IC MPU I960SA 10MHZ 84-PLCC
• Manufacturer: Intel

Specifications of N80960SA10

• Rohs Status: RoHS non-compliant
• Processor Type: i960
• Features: SA suffix, 32-Bit, 512 Byte Cache
• Speed: 10MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 84-PLCC
• Other names: 803819

2.0
2.1
The 80960SA is implemented in CHMOS IV
technology and therefore has modest power require-
ments. Its high clock frequency and numerous output
buffers (address/data, control, error and arbitration
signals) can cause power surges as multiple output
buffers simultaneously drive new signal levels. For
clean on-chip power distribution, V
separately feed the device’s functional units. Power
and ground connections must be made to all
80960SA power and ground pins. On the circuit
board, all V
together, preferably on a power plane; all V
should be strapped together, preferably on a ground
plane.
2.2
Place a liberal amount of decoupling capacitance
near the 80960SA. When driving the bus the
processor can cause transient power surges, partic-
ularly when connected to a large capacitive load.
Low inductance capacitors and interconnects are
recommended for best high frequency electrical
performance. Inductance is reduced by shortening
board traces between the processor and decoupling
capacitors as much as possible.
2.3
For reliable operation, always connect unused inputs
to an appropriate signal level. In particular, if one or
more interrupt lines are not used, they should be
pulled up. No inputs should ever be left floating.
ELECTRICAL SPECIFICATIONS
Power and Grounding
Power Decoupling
Recommendations
Connection Recommendations
CC
pins must be strapped closely
CC
and V
SS
SS
pins
pins
The LOCK open-drain pin requires a pullup resistor
whether or not the pin is used as an output. Figure 5
shows the recommended resistor value.
Do not connect external logic to pins marked NC.
2.4
Figure 6 shows typical supply current requirements
over the operating temperature range of the
processor at supply voltage (V
shows the typical power supply current (I
80960SA requires at various operating frequencies
when measured at three input voltage (V
For a given output current (I
shows the worst case output low voltage (V
Figure 9 shows the typical capacitive derating curve
for the 80960SA measured from 1.5V on the system
clock (CLK) to 0.8V on the falling edge and 2.0V on
the rising edge of the bus address/data (AD) signals.
Figure 5. Connection Recommendation
OPEN-DRAIN
Characteristic Curves
OUTPUT
for LOCK
OL
) the curve in Figure 8
CC
V
) of 5V. Figure 7
CC
910
CC
CC
80960SA
) levels.
) that the
OL
11
).