87C654 Philips Semiconductors, 87C654 Datasheet - Page 13

• Manufacturer Part Number: 87C654
• Description: 80C51 8-bit microcontroller 8K/16K/ 256 OTP/ I2C
• Manufacturer: Philips 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.
3. These values are characterized but not 100% production tested.
Philips Semiconductors
AC ELECTRICAL CHARACTERISTICS
NOTES:
1996 Aug 16
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
t
t
Shift Register
t
t
t
t
t
External Clock
t
t
t
t
LHLL
AVLL
LLAX
LLIV
LLPL
PLPH
PLIV
PXIX
PXIZ
AVIV
PLAZ
AVLL
RLRH
WLWH
RLDV
RHDX
RHDZ
LLDV
AVDV
LLWL
AVWL
QVWX
DW
WHQX
RLAZ
WHLH
XLXL
QVXH
XHQX
XHDX
XHDV
CHCX
CLCX
CLCH
CHCL
SYMBOL
CMOS single-chip 8-bit microcontroller
CLCL
FIGURE
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
2
2
2
2
2
2
2
2
2
2
2
2
5
5
5
5
5
6
6
6
6
Oscillator frequency Speed Versions
87C654
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
Address valid to ALE low
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 setup time before WR
Data hold after WR
RD low to address float
RD or WR high to ALE high
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
High time
Low time
Rise time
Fall time
3
3
3
3
PARAMETER
1, 2
–4, –5
3
3
3
3
3
13
16MHz CLOCK
0.75
MIN
143
275
275
138
120
288
492
85
28
23
28
13
23
80
20
20
8
0
0
3
0
MAX
150
208
148
350
398
238
103
492
83
38
10
55
20
20
0
10t
6t
6t
4t
7t
2t
2t
3t
3t
t
t
t
t
t
t
t
CLCL
CLCL
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
–35
–100
–100
–130
–60
–150
–50
–40
–117
–40
–45
–50
–133
10t
t
t
4t
3t
5t
5t
8t
9t
CLCL –
CLCL –
2t
3t
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
t
+50
t
–70
–133
HIGH
LOW
87C654
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
ns
s