P87C52 PHILIPS [NXP Semiconductors], P87C52 Datasheet - Page 12

• Manufacturer Part Number: P87C52
• Description: 80C51 8-bit microcontrollers 16K/32K, 512 OTP, I2C, watchdog timer
• Manufacturer: PHILIPS [NXP Semiconductors]

1. Parameters are valid over operating temperature range unless otherwise specified.
2. Load capacitance for port 0, ALE, and PSEN = 100pF, load capacitance for all other outputs = 80pF.
Philips Semiconductors
AC ELECTRICAL CHARACTERISTICS
NOTES:
1999 Jul 23
1/t
t
t
t
t
t
t
t
t
t
t
t
Data Memory
t
t
t
t
t
t
t
t
t
t
t
t
t
External Clock
t
t
t
t
Shift Register
t
t
t
t
t
LHLL
AVLL
LLAX
LLIV
LLPL
PLPH
PLIV
PXIX
PXIZ
AVIV
PLAZ
RLRH
WLWH
RLDV
RHDX
RHDZ
LLDZ
AVDV
LLWL
AVWL
QVWX
WHQX
RLAZ
WHLH
CHCX
CLCX
CLCH
CHCL
XLXL
QVXH
XHQX
XHDX
XHDV
SYMBOL
80C51 8-bit microcontrollers
16K/32K, 512 OTP, I
CLCL
FIGURE
2, 3
2, 3
2, 3
2, 3
2, 3
2, 3
2, 3
2, 3
2, 3
2, 3
2, 3
2, 3
2, 3
1
1
1
1
1
1
1
1
1
1
1
1
6
6
6
6
4
4
4
4
4
Oscillator frequency:
ALE pulse width
Address valid to ALE low
Address hold after ALE low
ALE low to valid instruction in
ALE low to PSEN low
PSEN pulse width
PSEN low to valid instruction in
Input instruction hold after PSEN
Input instruction float after PSEN
Address to valid instruction in
PSEN low to address float
RD pulse width
WR pulse width
RD low to valid data in
Data hold after RD
Data float after RD
ALE low to valid data in
Address to valid data in
ALE low to RD or WR low
Address valid to WR low or RD low
Data valid to WR transition
Data hold after WR
RD low to address float
RD or WR high to ALE high
High time
Low time
Rise time
Fall time
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
87C528
2
C, watchdog timer
PARAMETER
1, 2
Speed Versions
P878C528EXX
12
16MHz CLOCK
MIN
143
275
275
138
120
750
492
85
28
23
13
23
20
20
8
0
0
3
8
0
MAX
150
208
148
350
398
238
103
492
83
38
10
55
20
20
0
10t
6t
6t
4t
2t
2t
3t
3t
t
t
t
t
t
t
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
12t
CLCL
CLCL
CLCL
CLCL
CLCL
MIN
VARIABLE CLOCK
3.5
20
20
CLCL
0
0
0
–55
–35
–40
–100
–100
–130
–60
–50
–40
–117
–40
–45
–50
–133
87C524/87C528
10t
4t
3t
5t
5t
8t
9t
3t
2t
t
t
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
MAX
Product specification
16
10
20
20
0
–100
–105
–25
–105
–165
–150
–165
+40
–70
+50
–133
UNIT
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns