UPD720122F1-DN2-A Renesas Electronics America, UPD720122F1-DN2-A Datasheet - Page 42
UPD720122F1-DN2-A
Manufacturer Part Number
UPD720122F1-DN2-A
Description
Manufacturer
Renesas Electronics America
Datasheet
1.UPD720122F1-DN2-A.pdf
(86 pages)
Specifications of UPD720122F1-DN2-A
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Part Number
Manufacturer
Quantity
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Company:
Part Number:
UPD720122F1-DN2-A
Manufacturer:
NEC
Quantity:
4 420
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(2) CPU bus write operation
CPU bus write timing
40
TB13
TB14
TB15
TB16
TB17
TB18
TB19
TB20
TB21
AD7 to AD0
D15 to D8
CSB
WRB
ALE
Symbol
Remark It is assumed that the external pin capacitance is 15 pF (data bus = 50 pF).
Note
D7 to D0 for Function 2
Note
Write cycle time
Address setup time (ALE ↓ )
Chip select setup time (ALE ↓ )
Write command delay time (ALE ↓ )
Input data setup time (WRB ↑ )
Input data hold time (WRB ↑ )
Write command width
Chip select hold time (WRB ↑ )
Chip select setup time (WRB ↓ )
tb
9
tb
2
ADDRESS
VALID
tb
15
Parameter
tb
10
tb
tb
21
16
Data Sheet S16685EJ3V0DS
tb
tb
DATA
VALID
17
13
tb
19
tb
20
tb
18
Min.
58
17
17
10
34
7
0
0
5
Typ.
µ
PD720122
Max.
ADDRESS
VALID
∞
∞
∞
∞
∞
∞
∞
∞
∞
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
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