DS89C430 Maxim, DS89C430 Datasheet - Page 6

• Manufacturer Part Number: DS89C430
• Description: The DS89C430 and DS89C450 offer the highest performance available in 8051-compatible microcontrollers
• Manufacturer: Maxim

AC CHARACTERISTICS (continued)
(V
Note: Specifications to -40°C are guaranteed by design and are not production tested. AC electrical characteristics assume 50% duty cycle for the oscillator and are not 100% tested, but are
guaranteed by design.
Port 0 Address to Valid Data
In (Note 16)
Port 2 Address to Valid Data
In (Note 16)
ALE Low to RD or WR Low
(Note 16)
Port 0 Address Valid to RD or
WR Low (Note 16)
Port 2 Address Valid to RD or
WR Low (Note 16)
Data Out Valid to WR
Transition (Note 15)
Data Hold After WR
(Note 15)
RD or WR High to ALE High
(Note 15)
CC
= 4.5V to 5.5V, T
PARAMETER
O
= -40°C to +85°C.) (See
SYMBOL
(t
(
(
t
t
t
(
t
t
t
t
t
t
t
AVWL0)
AVDV0
AVDV2
t
AVRL0
AVRL2
AVWL2)
QVWX
WHQX
WHLH)
RHLH
LLRL
LLWL)
0.5t
0 + t
t
CLCL
t
STC2
CLCL
MIN
t
- 10
PAGE MODE 1
STC2
STC5
-5
+ t
- 2
1-CYCLE
- 8 +
STC2
- 5
Figure
0.5t
t
6 + t
t
CLCL
STC2
+ t
MAX
CLCL
STC1
STC2
- 20
+ 4
1,
+
Figure
t
0.5t
CLCL
2t
t
+ t
STC2
+ t
CLCL
MIN
- 10
PAGE MODE 1
CLCL
-5
STC5
+ t
STC2
2, and
- 2
2-CYCLE
- 8
STC2
- 5
20 + t
2t
1.5t
Figure
t
STC2
+ t
CLCL
MAX
CLCL
STC2
6 of 46
+ 4
STC1
+ 6
-
3.)
t
1.5t
CLCL
4t
t
+ t
STC2
+ t
CLCL
MIN
- 10
CLCL
-5
PAGE MODE 1
+ t
STC5
STC2
- 2
- 8
STC2
4-CYCLE
- 5
4t
20 + t
3.5t
t
CLCL
STC2
DS89C430/DS89C450 Ultra-High-Speed Flash Microcontrollers
MAX
t
STC2
CLCL
+ 6 +
+ 4
STC1
-
0.5t
1.5t
t
CLCL
t
CLCL
t
+ t
+ t
STC2
MIN
t
- 10
CLCL
CLCL
STC5
-5
+ t
STC2
STC2
PAGE MODE 2
- 5 +
- 2
STC2
- 8
- 5
3.0t
0.5t
3t
t
STC2
CLCL
+ t
+ t
+ t
MAX
CLCL
CLCL
STC1
STC1
STC2
+ 4
- 20
- 20
+ 4
t
0.5t
1.5t
CLCL
t
CLCL
t
+ t
+ t
STC2
NONPAGE MODE
MIN
t
- 10
CLCL
STC2
CLCL
-5
+ t
STC2
STC5
- 5 +
- 2
STC2
- 8
- 5
0.5t
3t
20 + t
3.5t
t
STC2
CLCL
+ t
+ t
MAX
CLCL
STC1
CLCL
STC2
+ 4
- 20
STC1
+ 5
-
UNITS
ns
ns
ns
ns
ns
ns
ns
ns