UPD720122F1-DN2-A Renesas Electronics America, UPD720122F1-DN2-A Datasheet - Page 41
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
Lead Free Status / RoHS Status
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD720122F1-DN2-A
Manufacturer:
NEC
Quantity:
4 420
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2.6.3
(1) CPU bus read operation
CPU bus read timing
TB1
TB2
TB3
TB4
TB5
TB6
TB7
TB8
TB9
TB10
TB11
TB12
AD7 to AD0
D15 to D8
CSB
RDB
ALE
Symbol
Remark It is assumed that the external pin capacitance is 15 pF (data bus = 50 pF).
Note
AC characteristics of BIU block with function 2 or 3 selected
D7 to D0 for Function 2
Note
Read cycle time
Address setup time (ALE ↓ )
Chip select setup time (ALE ↓ )
Read command delay time (ALE ↓ )
Output data delay time (RDB ↓ )
Read command width
Output data hold time (RDB ↑ )
Chip select hold time (RDB ↑ )
ALE width
Address hold time (ALE ↓ )
Chip select setup time (RDB ↓ )
Buffer direction change time (RDB ↓ )
tb
9
tb
2
ADDRES
VALID
tb
3
Parameter
tb
10
tb
tb
11
4
Data Sheet S16685EJ3V0DS
tb
tb
1
12
tb
5
tb
DATA
invalid
6
DATA
VALID
tb
tb
7
8
Min.
86
10
17
57
10
7
−
4
5
0
5
−
Typ.
ADDRES
VALID
µ
PD720122
Max.
57
14
∞
∞
∞
∞
∞
∞
∞
∞
∞
−
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
39
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