A80960KB25 Intel, A80960KB25 Datasheet - Page 17

• Manufacturer Part Number: A80960KB25
• Description: IC MPU I960KB 25MHZ 132-PGA
• Manufacturer: Intel

Specifications of A80960KB25

• Processor Type: i960
• Features: KB suffix, 32-Bit, 512 Byte Cache
• Speed: 25MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 132-PGA
• Family Name: i960
• Device Core Size: 32b
• Frequency (max): 25MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Operating Supply Voltage (min): 4.75V
• Operating Temp Range: 0C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 132
• Package Type: PGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 803535

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.
All open-drain outputs require a pullup device. While
in most cases a simple pullup resistor is adequate, a
network of pullup and pulldown resistors biased to a
valid V
impedance of the circuit board is recommended to
limit noise and AC power consumption. Figure 5 and
Figure 6 show recommended values for the resistor
network for low and high current drive, assuming a
characteristic impedance of 100
output signals in this fashion limits signal swing and
reduces AC power consumption.
NOTE: Do not connect external logic to pins marked
Figure 5. Connection Recommendations
IH
OPEN-DRAIN OUTPUT
N.C.
Connection Recommendations
( 3.0 V) and terminated in the characteristic
for Low Current Drive Network
Low Drive Network:
V
I
OL
OH
= 20.7 mA
= 3.0 V
V
CC
220
330
Terminating
2.4
Figure 7 shows typical supply current requirements
over the operating temperature range of the
processor at supply voltage (V
and Figure 9 show the typical power supply current
(I
frequencies when measured at three input voltage
(V
For a given output current (I
10 shows the worst case output low voltage (V
Figure 11 shows the typical capacitive derating
curve for the 80960KB measured from 1.5V on the
system clock (CLK) to 1.5V on the falling edge and
1.5V on the rising edge of the L-Bus address/data
(LAD) signals.
CC
CC
) that the 80960KB requires at various operating
Figure 6. Connection Recommendations
) levels and two temperatures.
OPEN-DRAIN OUTPUT
Characteristic Curves
for High Current Drive Network
High Drive Network:
V
I
OL
OH
= 25.3 mA
= 3.4 V
OL
) the curve in Figure
CC
) of 5 V. Figure 8
V
CC
180
390
80960KB
OL
11
).