UPSD3254 STMICROELECTRONICS [STMicroelectronics], UPSD3254 Datasheet - Page 164

• Manufacturer Part Number: UPSD3254
• Description: Flash Programmable System Devices with 8032 Microcontroller Core
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

UPSD3254A, UPSD3254BV, UPSD3253B, UPSD3253BV
Figure 84. Peripheral I/O WRITE Timing
Table 132. Port A Peripheral Data Mode WRITE Timing (5V Devices)
Note: 1. Data stable on Port 0 pins to data on Port A.
Table 133. Port A Peripheral Data Mode WRITE Timing (3V Devices)
Note: 1. Data stable on Port 0 pins to data on Port A.
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t
t
t
t
t
t
WLQV–PA
DVQV–PA
WHQZ–PA
WLQV–PA
DVQV–PA
WHQZ–PA
Symbol
Symbol
A / D BUS
WR to Data Propagation Delay
Data to Port A Data Propagation Delay
WR Invalid to Port A Tri-state
WR to Data Propagation Delay
Data to Port A Data Propagation Delay
WR Invalid to Port A Tri-state
ALE
WR
Parameter
Parameter
ADDRESS
tWLQV
(PA)
Conditions
Conditions
(Note 1)
(Note 1)
tDVQV (PA)
DATA OUT
DATA OUT
PORT A
Min
Min
tWHQZ (PA)
Max
Max
25
22
20
42
38
33
AI06611
Unit
Unit
ns
ns
ns
ns
ns
ns