W78E054D Datasheet, PDF (73/89 Pages) List of Unclassifed Manufacturers – 8-bit microcontroller

W78E054D/W78E052D Data Sheet
20.4 TIMING waveforms
20.4.1 Program Fetch Cycle
XTAL1
S1 S2 S3 S4 S5 S6 S1 S2 S3 S4 S5 S6
ALE
PSEN
PORT 2
T_APL
T_PSW
T_AAS
T_AAH
T_PDA
T_ALW
T_PDH, T_PDZ
PORT 0
Code
A0-A7
Data ^A0-A7
Code A0-A7
Data A0-A7
20.4.2 Data Read Cycle
XTAL1
S4 S5 S6 S1 S2 S3 S4 S5 S6 S1 S2 S3
ALE
PSEN
PORT 2
PORT 0
RD
A0-A7
A8-A15
DAT A
TDAR
TDDA
TDDH, TDDZ
TDRD
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Publication Release Date: Jun 9, 2015
Revision A13