IS80LV52 Datasheet, PDF (45/48 Pages) Integrated Silicon Solution, Inc – CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER

IS80LV52
IS80LV32
TIMING WAVEFORMS
ALE
PSEN
PORT 0
PORT 2
tLHLL
tLLPL
tAVLL
tPLPH
tPLIV
tLLAX
tPLAZ
tPXIX
A7-A0
INSTR IN
tLLIV
tAVIV
A15-A8
tPXIZ
A7-A0
A15-A8
Figure 32. External Program Memory Read Cycle
ISSI ^®
ALE
PSEN
RD
PORT 0
PORT 2
tLLDV
tLLWL
tWHLH
tRLRH
tAVLL
tRLAZ
tLLAX
tRLDV _tRHDX
A7-A0 FROM RI OR DPL
DATA IN
tAVWL
tAVDV
A15-A8 FROM DPH
tRHDZ
A7-A0 FROM PCL INSTR IN
A15-A8 FROM PCH
Figure 33. External Data Memory Read Cycle
Integrated Silicon Solution, Inc. — 1-800-379-4774
45
ADVANCE INFORMATION MC019-0A
10/01/98