UPSD3254 STMICROELECTRONICS [STMicroelectronics], UPSD3254 Datasheet - Page 163

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

Figure 83. Peripheral I/O READ Timing
Table 130. Port A Peripheral Data Mode READ Timing (5V Devices)
Note: 1. Any input used to select Port A Data Peripheral Mode.
Table 131. Port A Peripheral Data Mode READ Timing (3V Devices)
Note: 1. Any input used to select Port A Data Peripheral Mode.
t
t
t
t
t
t
t
t
t
t
AVQV–PA
SLQV–PA
RLQV–PA
DVQV–PA
RHQZ–PA
AVQV–PA
SLQV–PA
RLQV–PA
DVQV–PA
RHQZ–PA
Symbol
Symbol
2. Data is already stable on Port A.
2. Data is already stable on Port A.
A/D BUS
Address Valid to Data
Valid
CSI Valid to Data Valid
RD to Data Valid
Data In to Data Out Valid
RD to Data High-Z
Address Valid to Data Valid
CSI Valid to Data Valid
RD to Data Valid
Data In to Data Out Valid
RD to Data High-Z
ALE
CSI
RD
Parameter
Parameter
ADDRESS
UPSD3254A, UPSD3254BV, UPSD3253B, UPSD3253BV
t AVQV ( PA)
t SLQV ( PA)
t RLQV (PA)
Conditions
Conditions
(Note 2)
(Note 1)
(Note 2)
(Note 1)
DATA ON PORT A
t DVQV ( PA)
DATA VALID
Min
Min
Max
Max
t RHQZ ( PA)
37
27
32
22
23
50
37
45
38
36
Turbo
Turbo
+ 10
+ 10
+ 20
+ 20
Off
Off
AI06610
163/175
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns