UPSD3234AV-24U1T STMicroelectronics, UPSD3234AV-24U1T Datasheet - Page 149
UPSD3234AV-24U1T
Manufacturer Part Number
UPSD3234AV-24U1T
Description
Flash Programmable System Devices with 8032 Microcontroller Core and 64Kbit SRAM
Manufacturer
STMicroelectronics
Datasheet
1.UPSD3234AV-24U1T.pdf
(170 pages)
- Current page: 149 of 170
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Figure 76. External Data Memory READ Cycle
Figure 77. External Data Memory WRITE Cycle
PORT 0
PORT 0
PORT 2
PORT 2
PSEN
PSEN
ALE
ALE
WR
RD
tAVLL
tAVLL
tLHLL
tLHLL
A0-A7 from
RI or DPL
A0-A7 from
RI or DPL
tAVWL
tLLAX
tAVWL
tLLAX2
tLLWL
tLLWL
P2.0 to P2.3 or A8-A11 from DPH
P2.0 to P2.3 or A8-A11 from DPH
tAVDV
uPSD3234A, uPSD3234BV, uPSD3233B, uPSD3233BV
tLLDV
tQVWX
tRLDV
tRLAZ
tQVWH
tWLWH
tRLRH
DATA OUT
DATA IN
tWHQX
tRHDZ
tWHLH
tWHLH
tRHDX
A0-A7 from PCL
A0-A7 from PCL
A8-A11 from PCH
A8-A11 from PCH
INSTR IN
INSTR IN
AI07088
AI07089
149/170
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