p89c538nbb NXP Semiconductors, p89c538nbb Datasheet - Page 17

• Manufacturer Part Number: p89c538nbb
• Description: Cmos Single-chip 8-bit Microcontrollers With Flash Program Memory
• Manufacturer: 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.
3. Interfacing the microcontroller to devices with float times up to 45ns is permitted. This limited bus contention will not cause damage to Port 0
Philips Semiconductors
AC ELECTRICAL CHARACTERISTICS
T
NOTES:
1998 Apr 24
amb
SYMBOL
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
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
LLDV
AVDV
LLWL
AVWL
QVWX
WHQX
QVWH
RLAZ
WHLH
CHCX
CLCX
CLCH
CHCL
XLXL
QVXH
XHQX
XHDX
XHDV
80C51 8-bit microcontroller family
16K/64K/512 FLASH
drivers.
CLCL
= 0 C to +70 C, V
FIGURE
10, 11
10, 11
10, 11
10, 11
10, 11
10, 11
10, 11
10, 11
10, 11
10, 11
10, 11
10, 11
10, 11
13
13
13
13
12
12
12
12
12
11
9
9
9
9
9
9
9
9
9
9
9
9
CC
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
Data valid to WR high
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
= 5V 10%, V
Speed versions : N (33MHz)
SS
= 0V
PARAMETER
1, 2, 3
17
10t
6t
6t
7t
2t
3t
3t
4t
2t
t
t
t
t
t
t
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
12t
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
VARIABLE CLOCK
MIN
3.5
17
17
CLCL
0
0
0
–25
–25
–25
–100
–100
–30
–25
–130
–25
–40
–45
–50
–75
–133
–80
10t
t
t
8t
9t
CLCL
CLCL
4t
3t
5t
5t
2t
3t
t
t
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
MAX
33
10
–t
–t
0
5
5
+25
–25
–150
–165
CHCX
CLCX
–65
–60
–80
–90
–28
+50
–133
89C536/89C538
33MHz CLOCK
MIN
360
167
3.5
21
45
82
82
40
45
80
50
5
5
5
0
0
0
5
5
0
Preliminary specification
MAX
105
140
167
33
55
30
70
10
60
32
90
55
5
0
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