W78LE51C Datasheet, PDF (17/23 Pages) Winbond – 8-BIT MICROCONTROLLER

W78LE51C/W78L051C
11. TIMING WAVEFORMS
Program Fetch Cycle
XTAL1
S1 S2 S3 S4 S5 S6 S1 S2 S3 S4 S5 S6
ALE
PSEN
PORT 2
PORT 0
T _APL
T_PSW
T_AAS
T_AAH
T_PDA
Code A0-A7
Data
T _ALW
T_PDH, T_PDZ
A0-A7
Code A0-A7
Data
A0-A7
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
DATA
T DAR
T DDA
T DDH, T DDZ
T DRD
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Publication Release Date: December 4, 2006
Revision A3