P80C32 Intel, P80C32 Datasheet - Page 12

• Manufacturer Part Number: P80C32
• Manufacturer: Intel

Specifications of P80C32

• Cpu Family: 80C51
• Device Core: 8051
• Device Core Size: 8b
• Frequency (max): 12MHz
• Program Memory Type: ROMLess
• Program Memory Size: Not Required
• Total Internal Ram Size: 256Byte
• # I/os (max): 32
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 6V
• Operating Supply Voltage (min): 4V
• Instruction Set Architecture: CISC
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 40
• Package Type: PDIP
• Lead Free Status / Rohs Status: Not Compliant

8XC52 54 58
EXPLANATION OF THE AC SYMBOLS
Each timing symbol has 5 characters The first char-
acter is always a ‘T’ (stands for time) The other
characters depending on their positions stand for
the name of a signal or the logical status of that
signal The following is a list of all the characters and
what they stand for
AC CHARACTERISTICS
PSEN
EXTERNAL MEMORY CHARACTERISTICS
All parameter values apply to all devices unless otherwise indicated In this table 8XC5X refers to 8XC5X
8XC5X-1 and 8XC5X-2
12
1 TCLCL Oscillator Frequency
TLHLL
TAVLL
TLLAX
TLLIV
Symbol
A Address
C Clock
D Input Data
H Logic level HIGH
I Instruction (program memory contents)
e
100 pF Load Capacitance for All Other Outputs
ALE Pulse Width
Address Valid to
ALE Low
Address Hold After
ALE Low
ALE Low to Valid
Instruction In
8XC5X
8XC5X-1
8XC5X-2
8XC5X-24
8XC5X-33
8XC5X
8XC5X-24
8XC5X-33
8XC5X -24
8XC5X-33
8XC5X
8XC5X-24
8XC5X-33
Parameter
(Over Operating Conditions Load Capacitance for Port 0 ALE PROG and
Min Max Min Max Min Max
127
43
53
12 MHz
234
43
12
12
24 MHz
91
For example
21
33 MHz
5
5
e
L Logic level LOW or ALE
P PSEN
Q Output Data
R RD signal
T Time
V Valid
W WR signal
X No longer a valid logic level
Z Float
TAVLL
TLLPL
80 pF)
Oscillator
56
e
e
2 TCLCL
TCLCL
TCLCL
TCLCL
TCLCL
TCLCL
Time from ALE Low to PSEN Low
Time from Address Valid to ALE Low
Min
3 5
3 5
0 5
3 5
3 5
b
b
b
b
b
b
40
30
25
30
25
Variable
40
4 TCLCL
4 TCLCL
4 TCLCL
Max
12
16
12
24
33
b
b
b
100
75
65
Units
MHz
MHz
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns