HT83C51DB ETC, HT83C51DB Datasheet - Page 8

• Manufacturer Part Number: HT83C51DB
• Description: HIGH TEMPERATURE 83C51 MICROCONTROLLER
• Manufacturer: ETC

HT83C51
EXTERNAL PROGRAM MEMORY READ CYCLE
EXTERNAL DATA MEMORY READ CYCLE
EXTERNAL DATA MEMORY WRITE CYCLE
PORT 0
PORT 2
PSENn
ALE
PORT 0
PORT 2
PSENn
PORT 0
PORT 2
RDn
PSENn
ALE
WRn
ALE
TLHLL
TAVLL
A0 - A7 from RI or DPL
TLHLL
TAVLL
A0 - A7 from RI or DPL
TLHLL
TAVLL
TLLPL
P2.0 - P2.7 or A8 - A15 from DPH
A0 - A7
TAVDV
TAVWL
P2.0 - P2.7 or A8 - A15 from DPH
TAVWL
TLLAX
TLLWL
TAVIV
TLLAX
TLLWL
TLLAX
TLLDV
TRLDV
A8 - A15
TLLIV
TPLAZ
TRLAZ
TRLRH
TPLPH
TPLIV
TQVWH
TQVWX
DATA OUT
INSTR IN
TWLWH
8
TPXIX
DATA IN
A0 - A7 from PCL
A0 - A7 from PCL
TWHLH
TRHDX
TPXIZ
A8 - A15 from PCH
TRHDZ
TWHQX
TWHLH
A8 - A15 from PCH
A0 - A7
A8 - A15
INSTR. IN
INSTR. IN