AT89C51ID2-SMSIM ATMEL [ATMEL Corporation], AT89C51ID2-SMSIM Datasheet - Page 145
AT89C51ID2-SMSIM
Manufacturer Part Number
AT89C51ID2-SMSIM
Description
8-bit Flash Microcontroller
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT89C51ID2-SMSIM.pdf
(159 pages)
- Current page: 145 of 159
- Download datasheet (2Mb)
External Program Memory
Read Cycle
External Data Memory
Characteristics
4289A–8051–09/03
PORT 0
PORT 2
PSEN
ALE
INSTR IN
OR SFR-P2
ADDRESS
Table 100. Symbol Description
T
LHLL
T
T
LLAX
Symbol
AVLL
T
T
T
T
T
T
T
T
T
T
T
T
T
T
A0-A7
WLWH
QVWH
WHQX
QVWX
WHLH
RLRH
RLDV
RHDX
RHDZ
AVDV
AVWL
LLDV
LLWL
RLAZ
T
AVIV
ADDRESS A8-A15
T
LLIV
T
LLPL
TPLAZ
T
Parameter
RD Pulse Width
WR Pulse Width
RD to Valid Data In
Data Hold After RD
Data Float After RD
ALE to Valid Data In
Address to Valid Data In
ALE to WR or RD
Address to WR or RD
Data Valid to WR Transition
Data Set-up to WR High
Data Hold After WR
RD Low to Address Float
RD or WR High to ALE high
PLIV
T
PLPH
INSTR IN
T
PXIX
12 T
CLCL
T
PXIZ
T
PXAV
A0-A7
ADDRESS A8-A15
AT89C51ID2
INSTR IN
145
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