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UPSD323X bảng dữ liệu(PDF) 155 Page - STMicroelectronics

tên linh kiện UPSD323X
Giải thích chi tiết về linh kiện  Flash Programmable System Devices with 8032 Microcontroller Core and 64Kbit SRAM
PDF  176 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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UPSD323X bảng dữ liệu(HTML) 155 Page - STMicroelectronics

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µPSD323X
Table 118. External Data Memory AC Characteristics (with the 5V MCU Module)
Note: 1. Conditions (in addition to those in Table 109, VCC = 4.5 to 5.5V): VSS = 0V; CL for Port 0, ALE and PSEN output is 100pF; CL for
other outputs is 80pF
Symbol
Parameter1
40MHz Oscillator
Variable Oscillator
1/tCLCL = 24 to 40MHz
Unit
Min
Max
Min
Max
tRLRH
RD pulse width
120
6tCLCL –30
ns
tWLWH
WR pulse width
120
6tCLCL –30
ns
tLLAX2
Address hold after ALE
10
tCLCL –15
ns
tRHDX
RD to valid data in
75
5tCLCL –50
ns
tRHDX
Data hold after RD
0
0
ns
tRHDZ
Data float after RD
38
2tCLCL –12
ns
tLLDV
ALE to valid data in
150
8tCLCL –50
ns
tAVDV
Address to valid data in
150
9tCLCL –75
ns
tLLWL
ALE to WR or RD
60
90
3tCLCL –15
tCLCL +15
ns
tAVWL
Address valid to WR or RD
70
4tCLCL –30
ns
tWHLH
WR or RD High to ALE High
10
40
tCLCL –15
tCLCL +15
ns
tQVWX
Data valid to WR transition
5
tCLCL –20
ns
tQVWH
Data set-up before WR
125
7tCLCL –50
ns
tWHQX
Data hold after WR
5
tCLCL –20
ns
tRLAZ
Address float after RD
0
0
ns



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