SST89V54RD2 Silicon Storage Technology, Inc., SST89V54RD2 Datasheet - Page 69

• Manufacturer Part Number: SST89V54RD2
• Description: Flashflex51 Mcu
• Manufacturer: Silicon Storage Technology, Inc.

FlashFlex MCU
SST89V54RD2/RD / SST89V58RD2/RD
©2007 Silicon Storage Technology, Inc.
FIGURE 14-2: External Program Memory Read Cycle
FIGURE 14-3: External Data Memory Read Cycle
PORT 0
PORT 2
PSEN#
PORT 0
PORT 2
PSEN#
ALE
RD#
ALE
T
A0-A7 FROM RI or DPL
T
LHLL
AVLL
T
LHLL
T
P2[7:0] or A8-A15 FROM DPH
AVLL
T
AVWL
A0 - A7
T
AVDV
T
T
LLAX
T
LLWL
T
T
LLPL
AVIV
LLAX
T
RLDV
T
LLDV
T
LLIV
A8 - A15
T
PLIV
T
PLAZ
69
T
T
T
PLPH
RLAZ
RLRH
DATA IN
INSTR IN
T
PXIX
T
T
PXIZ
T
PXAV
RHDX
T
A0-A7 FROM PCL
WHLH
T
RHDZ
A8-A15 FROM PCH
A0 - A7
A8 - A15
1255 F35.0
INSTR IN
1255 F36.0
S71255-10-000
Data Sheet
12/07