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UPD78P324 Datasheet(PDF) 46 Page - NEC

Part # UPD78P324
Description  16-/8-Bit Single-Chip Microcomputers
PDF  80 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD78P324 Datasheet(HTML) 46 Page - NEC

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µPD78P324, 78P324(A)
46
(3)
µPD78P324(A1) Electrical Specifications (6/9)
tCYK-dependent Bus Timing Definition
Symbol
Calculation formula
MIN./MAX.
Unit
tSAST
0.5T–40
MIN.
ns
tHSTA
0.5T–30
MIN.
ns
tDAR
T–40
MIN.
ns
tDAID
(2.5+n) T–90
MAX.
ns
tDRID
(1.5+n) T–75
MAX.
ns
tDSTR
0.5T–20
MIN.
ns
tDRA
0.5T–12
MIN.
ns
tWRL
(1.5+n) T–49
MIN.
ns
tWSTH
0.5T–25
MIN.
ns
tDAW
T–40
MIN.
ns
tDSTOD
0.5T+40
MAX.
ns
tDSTW
0.5T–20
MIN.
ns
tSODW
1.5T–49
MIN.
ns
tHWOD
0.5T–30
MIN.
ns
tDWST
0.5T–20
MIN.
ns
tWWL
(1.5+n) T–45
MIN.
ns
Remarks
1. T = tCYK = 1/fCLK (fCLK refers to the internal system clock frequency)
2. n refers to the count of weight cycles defined by the user software.
3. Among the parameters for bus timing, only those listed in this table are dependent on tCYK.



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