UPD78P324 Datasheet, PDF (63/80 Pages) NEC – 16-/8-Bit Single-Chip Microcomputers

µPD78P324, 78P324(A)
AC Programming Characteristics (TA = 25±5 °C, VSS = 0 V)
In PROM Write Mode
Parameter
Address setup time
CE set time
Input data setup time
Address hold time
Input data hold time
Output data hold time
VPP setup time
VDDP setup time
Initial program pulse width
OE set time
OE → valid data delay time
Symbol^Note1
tAS
tCES
tDS
tAH
tDH
tDF
tVPS
tVDS^{Note 2}
tPW
tOES
tOE
Condition
MIN.
TYP.
MAX.
Unit
2
µs
2
µs
2
µs
2
µs
2
µs
0
130
ns
2
µs
2
µs
0.095
0.1
0.105
ms
2
µs
200
ns
Notes 1. Corresponds to the symbol of µPD27C1001A (tVDS excluded).
2. The symbol of tVDS on µPD27C1001A is tVCS.
In PROM Read Mode
Parameter
Address → data output time
CE ↓ → data output time
OE ↓ → data output time
Data hold time
(vs. OE ↑, CE ↑)^{Note 2}
Data hold time (vs. address)
Symbol^Note1
Condition
tACC
CE = OE = VIL
tCE
OE = VIL
tOE
CE = VIL
tDF
CE = VIL or OE = VIL
tOH
CE = OE = VIL
MIN.
TYP.
MAX.
Unit
2
µs
1
µs
1
µs
0
130
ns
0
ns
Notes 1. Corresponds to the symbol of µPD27C1001A.
2. tDF refers to the time when either OE or CE became VIH first.
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