Rainbow Electronics DS89C450 - Manual (Page 5)

DS89C430/DS89C440/DS89C450 Ultra-High-Speed Flash Microcontrollers
5 of 48
AC CHARACTERISTICS (continued)
(V
CC
= 4.5V to 5.5V, T
O
= -40°C to +85°C.) (See Figure 1 , Figure 2 , and Figure 3 .)
1-CYCLE
PAGE MODE 1
2-CYCLE
PAGE MODE 1
4-CYCLE
PAGE MODE 1
PAGE MODE 2 NONPAGE MODE
PARAMETER SYMBOL
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
UNITS
PSEN Low to Valid Instruction
In
t
PLIV
t
CLCL
- 20 t
CLCL
- 20 2t
CLCL
- 20 t
CLCL
- 20 2t
CLCL
- 20 ns
Input Instruction Hold After
PSEN
t
PXIX
0 0 0 0 0
ns
Input Instruction Float After
PSEN
t
PXIZ
t
CLCL
- 5 t
CLCL
- 5 ns
Port 0 Address to Valid
Instruction In
t
AVIV0
1.5t
CLCL
- 22 3t
CLCL
- 22 ns
Port 2 Address to Valid
Instruction In
t
AVIV2
t
CLCL
- 20 1.5t
CLCL
- 20 2.5t
CLCL
- 20 3t
CLCL
- 20 3.5t
CLCL
- 20 ns
PSEN Low to Port 0 Address
Float
t
PLAZ
0 0 ns
RD Pulse Width (P3.7)
(Note 16)
t
RLRH
t
CLCL
- 5
+ t
STC1
t
CLCL
- 5
+ t
STC1
2t
CLCL
- 5
+ t
STC1
2t
CLCL
- 5
+ t
STC1
2t
CLCL
- 5
+ t
STC1
ns
WR Pulse Width (P3.6)
(Note 16)
t
WLWH
t
CLCL
- 5
+ t
STC1
t
CLCL
- 5
+ t
STC1
2t
CLCL
- 5
+ t
STC1
2t
CLCL
- 5
+ t
STC1
2t
CLCL
- 5
+ t
STC1
ns
RD (P3.7) Low to Valid Data In
(Note 16)
t
RLDV
t
CLCL
- 18
+ t
STC1
t
CLCL
- 18
+ t
STC1
2t
CLCL
- 18
+ t
STC1
2t
CLCL
- 18
+ t
STC1
2t
CLCL
- 18
+ t
STC1
ns
Data Hold After RD (P3.7) t
RHDX
0 0 0 0 0 ns
Data Float After RD (P3.7) t
RHDZ
t
CLCL
- 5 t
CLCL
- 5 ns
MOVX ALE Low to Input Data
Valid (Note 16)
t
LLDV
2t
CLCL
- 8
+ t
STC1
2t
CLCL
- 5
+ t
STC1
ns