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PSD4235G2 データシート(PDF) 72 Page - STMicroelectronics

部品番号 PSD4235G2
部品情報  Flash In-System-Programmable Peripherals for 16-Bit MCUs
PDF  93 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PSD4235G2 データシート(HTML) 72 Page - STMicroelectronics

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Preliminary Information
PSD4000 Series
69
NOTES: 1. RD timing has the same timing as DS, LDS, UDS, and PSEN signals.
2. RD and PSEN have the same timing.
3. Any input used to select an internal PSD4000 function.
4. In multiplexed mode, latched addresses generated from ADIO delay to address output on any Port.
5. RD timing has the same timing as DS, LDS, and UDS signals.
-70
-90
Turbo
Symbol
Parameter
Conditions
Min
Max
Min
Max
Off
Unit
tLVLX
ALE or AS Pulse Width
15
20
ns
tAVLX
Address Setup Time
(Note 3)
4
6
ns
tLXAX
Address Hold Time
(Note 3)
7
8
ns
tAVQV
Address Valid to Data Valid
(Note 3)
70
90
Add 12**
ns
t SLQV
CS Valid to Data Valid
75
100
ns
RD to Data Valid
(Note 5)
24
32
ns
t RLQV
RD or PSEN to Data Valid,
80C51XA Mode
(Note 2)
31
38
ns
t RHQX
RD Data Hold Time
(Note 1)
0
0
ns
tRLRH
RD Pulse Width
(Note 1)
27
32
ns
tRHQZ
RD to Data High-Z
(Note 1)
20
25
ns
tEHEL
E Pulse Width
27
32
ns
tTHEH
R/W Setup Time to Enable
6
10
ns
tELTL
R/W Hold Time After Enable
0
0
ns
tAVPV
Address Input Valid to Address
(Note 4)
20
25
ns
Output Delay
Read Timing (5 V ± 10% Versions)
Microcontroller Interface – PSD4000 AC/DC Parameters
(5V ± 10% Versions)



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