Техническая Спецификация для Microchip Technology DV164136
2007-2012 Microchip Technology Inc.
DS39778E-page 423
PIC18F87J11 FAMILY
FIGURE 28-8:
PROGRAM MEMORY WRITE TIMING DIAGRAM
TABLE 28-12: PROGRAM MEMORY WRITE TIMING REQUIREMENTS
Param.
No
Symbol
Characteristics
Min
Typ Max
Units
150
TadV2alL Address Out Valid to ALE
(address setup time)
0.25 T
CY
– 10
—
—
ns
151
TalL2adl
ALE
to Address Out Invalid (address hold time)
5
—
—
ns
153
TwrH2adl WRn
to Data Out Invalid (data hold time)
5
—
—
ns
154
TwrL
WRn Pulse Width
0.5 T
CY
– 5
0.5 T
CY
—
ns
156
TadV2wrH Data Valid Before WRn
(data setup time)
0.5 T
CY
– 10
—
—
ns
157
TbsV2wrL Byte Select Valid Before WRn
(byte select setup time)
0.25 T
CY
—
—
ns
157A
TwrH2bsI WRn
to Byte Select Invalid (byte select hold time)
0.125 T
CY
– 5
—
—
ns
166
TalH2alH
ALE
to ALE (cycle time)
—
T
CY
—
ns
171
TalH2csL
Chip Enable Active to ALE
0.25 T
CY
– 20
—
—
ns
171A
TubL2oeH AD Valid to Chip Enable Active
—
—
10
ns
Address
Q1
Q2
Q3
Q4
Q1
Q2
OSC1
ALE
Data
156
150
151
153
AD<15:0>
Address
WRH or
WRL
UB or
LB
157
154
157A
Address
A<19:16>
Address
BA0
166
CE
171
171A
Operating Conditions: 2.0V < V
CC
< 3.6V, -40°C < T
A
< +125°C unless otherwise stated.