PSD835G2V_07 Datasheet, PDF (109/118 Pages) STMicroelectronics – Flash PSD, 3 V supply, for 8-bit MCUs 4 Mbit + 256 Kbit dual Flash memories and 64 Kbit SRAM

PSD835G2V
Figure 45. Peripheral I/O Read timing
ALE /AS
AC and DC parameters
A /D BUS
CSI
RD
ADDRESS
tAVQV ( PF)
tSLQV ( PF)
tRLQV ( PF)
tRLRH ( PF)
DATA VALID
tQXRH ( PF)
tRHQZ ( PF)
tDVQV ( PF)
DATA ON PORT F
AI02897b
Table 64. Port F peripheral data mode read timing
Symbol
Parameter
-90
-12
Conditions
Min Max Min Max
t_AVQV–PF
t_SLQV–PF
t_RLQV–PF
Address Valid to Data Valid
CSI Valid to Data Valid
RD to Data Valid
RD to Data Valid 8031 Mode
(1)
(2),(3)
50
50
35
40
35
40
45
45
t_DVQV–PF Data In to Data Out Valid
t_QXRH–PF RD Data Hold Time
t_RLRH–PF RD Pulse Width
(2)
t_RHQZ–PF RD to Data High-Z
(2)
1. Any input used to select Port F Data Peripheral mode.
2. RD has the same timing as DS and PSEN.
3. Data is already stable on Port F.
34
38
0
0
35
36
38
40
Turbo
Off
+ 20
+ 20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
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