PSD834F2-90MI STMicroelectronics, PSD834F2-90MI Datasheet - Page 95

• Manufacturer Part Number: PSD834F2-90MI
• Description: IC FLASH 2MBIT 90NS 52QFP
• Manufacturer: STMicroelectronics

Specifications of PSD834F2-90MI

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 2M (256K x 8)
• Speed: 90ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2009

Table 62. Port A Peripheral Data Mode READ Timing (3V devices)
Figure 48. Peripheral I/O WRITE Timing
Table 63. Port A Peripheral Data Mode WRITE Timing (5V devices)
Note: 1. RD has the same timing as DS, LDS, UDS, and PSEN (in 8031 combined mode).
t
t
t
t
t
t
t
t
t
t
AVQV–PA
SLQV–PA
RLQV–PA
DVQV–PA
QXRH–PA
RLRH–PA
RHQZ–PA
WLQV–PA
DVQV–PA
WHQZ–PA
Symbol
Symbol
2. WR has the same timing as the E, LDS, UDS, WRL, and WRH signals.
3. Any input used to select Port A Data Peripheral mode.
4. Data is already stable on Port A.
5. Data stable on ADIO pins to data on Port A.
Address Valid to Data Valid
CSI Valid to Data Valid
RD to Data Valid
RD to Data Valid 8031 Mode
Data In to Data Out Valid
RD Data Hold Time
RD Pulse Width
RD to Data High-Z
WR to Data Propagation Delay
Data to Port A Data Propagation Delay
WR Invalid to Port A Tri-state
A / D BUS
ALE/AS
WR
Parameter
Parameter
ADDRESS
Doc ID 10552 Rev 3
Conditions
(Notes
(Note
(Note
(Note
1,4
3
1
1
Conditions
)
)
)
tWLQV
)
(Note
(Note
(Note
Min Max Min Max Min Max
2
5
2
(PA)
36
)
)
)
0
-12
50
37
37
36
45
38
tDVQV (PA)
DATA OUT
Min Max Min Max Min Max
DATA OUT
PORT A
-70
36
0
25
22
20
-15
PSD813F2V, PSD854F2V
50
45
40
45
40
40
tWHQZ (PA)
-90
46
0
35
30
25
-20
50
50
45
50
45
45
AI02898
-15
Turbo
+ 20
+ 20
Off
40
38
33
95/109
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns