UPD720122F1-DN2-A Renesas Electronics America, UPD720122F1-DN2-A Datasheet - Page 46
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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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(a) External local bus 16-bit mode DMA single mode write transfer
(Overall)
44
L16T35
L16T36
L16T37
L16T38
L16T39
L16T40
L16T41
L16T42
L16T43
L16T44
Symbol
Note
Remark It is assumed that the external pin capacitance is 15 pF (data bus = 50 pF).
EP2_DACKB
EP2_DRQB
EP2_WRB
LD15 to LD0
EP2_TCB
Can be input after previous EP2_WRB ↑ .
DMA request acknowledge setup time (EP2_WRB↓)
DMA request off time 1 (EP2_DACKB↓)
DMA single mode write transfer cycle time
Write command width
Write command inactive time
Write data setup time (EP2_WRB↑)
Write data hold time (EP2_WRB↑)
EP2_TCB setup time (EP2_WRB↓)
EP2_TCB hold time (EP2_WRB↓)
DMA request acknowledge hold time (EP2_WRB↑)
L16t
High level
35
L16t
L16t
L16t
40
36
38
1 cycle
L16t
L16t
L16t
L16t
Parameter
37
39
44
41
Data Sheet S16685EJ3V0DS
Min.
88
54
34
10
17
0
−
0
0
0
L16t
40
N − 1 cycle
Typ.
L16t
µ
41
Note
PD720122
Max.
54
∞
∞
∞
∞
∞
∞
∞
∞
N cycle
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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