CDP1879 View Datasheet(PDF) - Intersil
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CDP1879 Datasheet PDF : 18 Pages
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CDP1879, CDP1879C-1
TPA
ADDRESS/CHIP SELECT
READ
tCS
tRH
tRD
DATA TO CPU
tDR
tDA
tDH
FIGURE 17. READ CYCLE TIMING WAVEFORMS
Dynamic Electrical Speciļ¬cations at TA -40oC to +85oC, Input tR, tF = 10ns, CL = 50 pF
LIMITS
CDP1879
CDP1879C-1
PARAMETER
VDD
(NOTE 1)
(NOTE 1)
(V)
MIN
MAX
MIN
MAX
Write Cycle Times (See Figure 18)
Address Setup to Write
tAS
5
225
-
225
-
10
110
-
-
-
Write Pulse Width
tWR
5
150
-
150
-
10
70
-
-
-
Data Setup to Write
tDS
5
65
-
65
-
10
30
-
-
-
Address Hold after Write
tAH
5
0
-
0
-
10
0
-
-
-
Data Hold after Write
tWH
5
150
-
150
-
10
80
-
-
-
Chip Select Setup to TPA
tCS
5
50
-
50
-
10
30
-
-
-
NOTE:
1. Time required by a limit device to allow for the indicated function.
UNITS
ns
4-120
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