VRS51C1100-40-L ETC1 [List of Unclassifed Manufacturers], VRS51C1100-40-L Datasheet - Page 45

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

Timing Requirement of the External Clock (VSS = 0v is assumed)
External Program Memory Read Cycle
The following timing diagram provides External Program Memory Read Cycle timing information.
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F
F
IGURE
IGURE
0.45V
VRS51C1100
Vdd - 0.5V
28: T
29: E
IMING
XTERNAL
R
PORT 0
PORT2
EQUIREMENT OF
#PSEN
P
ROGRAM
ALE
20% Vdd-0.1V
M
EMORY
70% Vdd
E
XTERNAL
R
EAD
C
C
LOCK
YCLE
(VSS= 0.0V
TLHLL
TAVLL
A0-A7
IS ASSUMED
TCHCL
TLLAX
P2.0-P2.7 or AB-A15 from DPH
)
TLLPL
TPLAZ
TAVIV
TCLCX
TPLIV
TPLPH
Instruction IN
TCLCH
TCLCL
TPXIX
TPXIZ
TCHCX
A0-A7
A8-A15
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