PIC17C756A MICROCHIP [Microchip Technology], PIC17C756A Datasheet - Page 265

• Manufacturer Part Number: PIC17C756A
• Description: High-Performance 8-bit CMOS EPROM Microcontrollers with 10-bit A/D
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 20-24:
TABLE 20-20: MEMORY INTERFACE WRITE REQUIREMENTS
2000 Microchip Technology Inc.
Param.
AD<15:0>
†
150
151
152
153
154
No.
OSC1
ALE
WR
OE
Data in “Typ” column is at 5V, 25 C unless otherwise stated.
TadV2alL
TalL2adI
TadV2wrL
TwrH2adI
TwrL
Sym
Q1
MEMORY INTERFACE WRITE TIMING
AD<15:0> (address) valid
to
ALE
time)
ALE to address out invalid PIC17CXXX
(address hold time)
Data out valid to WR
(data setup time)
WR
(data hold time)
WR pulse width
to data out invalid
(address setup
Characteristic
Q2
addr out
150
151
PIC17CXXX
PIC17LCXXX
PIC17LCXXX
PIC17CXXX
PIC17LCXXX
PIC17CXXX
PIC17LCXXX
PIC17CXXX
PIC17LCXXX
Q3
152
0.25T
0.25T
0.25T
0.25T
Min
—
—
—
—
CY
CY
CY
CY
0
0
Q4
data out
154
- 10
- 10
- 40
- 40
0.25T
0.25T
0.25T
0.25T
Typ†
—
—
—
—
—
—
CY
CY
CY
CY
Q1
Q1
PIC17C7XX
153
Max
—
—
—
—
—
—
—
—
—
—
DS30289B-page 265
Unit
ns
ns
ns
ns
ns
s
Q2
addr out
Conditions