PIC17C752 MICROCHIP [Microchip Technology], PIC17C752 Datasheet - Page 247

• Manufacturer Part Number: PIC17C752
• Description: High-Performance 8-Bit CMOS EPROM Microcontrollers
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 20-18: MEMORY INTERFACE WRITE TIMING
TABLE 20-19: MEMORY INTERFACE WRITE REQUIREMENTS
1997 Microchip Technology Inc.
Param.
*
†
§
AD<15:0>
No.
150
151
152
153
154
OSC1
ALE
WR
These parameters are characterized but not tested.
Data in “Typ” column is at 5V, 25 C unless otherwise stated. These parameters are for design guidance only and are not
tested.
This specification ensured by design.
OE
Sym
TadV2alL
TalL2adI
TadV2wrL
TwrH2adI
TwrL
Q1
Characteristic
AD<15:0> (address) valid to
ALE
ALE to address out invalid
(address hold time)
Data out valid to WR
(data setup time)
WR
(data hold time)
WR pulse width
to data out invalid
(address setup time)
Q2
addr out
150
151
Preliminary
PIC17LCXXX
PIC17LCXXX
PIC17LCXXX
PIC17LCXXX
PIC17LCXXX
PIC17CXXX
PIC17CXXX
PIC17CXXX
PIC17CXXX
PIC17CXXX
Q3
152
0.25Tcy - 10
0.25Tcy - 40
TBD
TBD
TBD
Min
—
—
—
—
0
Q4
data out
154
0.25T
0.25T
Typ†
TBD
TBD
—
—
—
—
—
—
CY
CY
Q1
§
§
153
Max
—
—
—
—
—
—
—
—
—
—
DS30264A-page 247
Units Conditions
ns
ns
ns
ns
ns
Q2
addr out