P80C31BH Intel, P80C31BH Datasheet - Page 12

• Manufacturer Part Number: P80C31BH
• Manufacturer: Intel

Specifications of P80C31BH

• Cpu Family: MCS51
• Device Core: 8051
• Device Core Size: 8b
• Frequency (max): 16MHz
• Program Memory Type: ROMLess
• Program Memory Size: Not Required
• Total Internal Ram Size: 128Byte
• # I/os (max): 32
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Through Hole
• Pin Count: 40
• Package Type: PDIP
• Lead Free Status / Rohs Status: Not Compliant

AUTOMOTIVE 80C31BH 80C51BH 87C51
EXTERNAL CLOCK DRIVE
SERIAL PORT TIMING SHIFT REGISTER MODE
SHIFT REGISTER MODE TIMING WAVEFORMS
AC TESTING INPUT OUTPUT WAVEFORMS
12
1 T
T
T
T
T
Symbol
T
T
T
T
T
Symbol
AC inputs during testing are driven at V
and 0 45V for a Logic ‘‘0 ’’ Timing measurements are made at V
min for a Logic ‘‘1’’ and V
CHCX
CLCX
CLCH
CHCL
XLXL
QVXH
XHQX
XHDX
XHDV
CLCL
Serial Port Clock Cycle Time
Output Data Setup to Clock Rising Edge
Output Data Hold After Clock Rising Edge
Input Data Hold After Clock Rising Edge
Clock Rising Edge to Input Data Valid
Oscillator Frequency 3 5
High Time
Low Time
Rise Time
Fall Time
Parameter
IL
max for a Logic ‘‘0’’
Parameter
CC
Min Max Units
3 5
b
20
20
0 5 for a Logic ‘‘1’’
270419– 16
12
16
20
20
MHz
ns
ns
ns
ns
IH
Min
700
1 0
50
Oscillator
0
EXTERNAL CLOCK DRIVE WAVEFORM
12 MHz
FLOAT WAVEFORMS
For timing purposes a port pin is no longer floating when a 100
mV change from load voltage occurs and begins to float when a
100 mV change from the loaded V
t g
20 mA
Max
700
10T
2T
12T
CLCL
CLCL
Min
0
CLCL
b
b
117
Oscillator
133
Variable
OH
10T
V
OL
CLCL
Max
level occurs I
b
270419 –17
270419 –15
270419 –18
133
OL
Units
ns
ns
ns
ns
I
OH
s