VRS51C1100-40-L ETC1 [List of Unclassifed Manufacturers], VRS51C1100-40-L Datasheet - Page 46

• Manufacturer Part Number: VRS51C1100-40-L
• Description: Versa 8051 MCU with 128KB of IAP/ISP Flash
• Manufacturer: ETC1 [List of Unclassifed Manufacturers]

External Data Memory Read Cycle
The following timing diagram provides External Data Memory Read Cycle timing information.
______________________________________________________________________________________________
www.ramtron.com
F
IGURE
VRS51C1100
PORT 0
PORT 2
#PSEN
30: E
#RD
ALE
XTERNAL
D
ATA
M
EMORY
R
EAD
TAVLL
C
YCLE
From Ri or DPL
TAVYL
A0-A7
TLLAX
TLLYL
P2.0-P2.7 or A8 -A15 from DPH
TAVDV
TLLDV
TRLAZ
TRLDV
TRLRH
DATA IN
TRHDX
TRHDZ
TYHLH
From PCL
A8-A15 from PCH
A0-A7
page 46 of 50
INSTRL
IN