參數(shù)資料
型號(hào): PSD301R-A-70J
廠商: 意法半導(dǎo)體
英文描述: Low Cost Field Programmable Microcontroller Peripherals
中文描述: 低成本現(xiàn)場(chǎng)可編程微控制器外圍設(shè)備
文件頁(yè)數(shù): 15/85頁(yè)
文件大?。?/td> 691K
代理商: PSD301R-A-70J
PSD3XX Famly
12
Multiplexed Address/Data
Non-Multiplexed Address/Data
8-bit Data Bus
I/O or low-order address
lines or Low-order multiplexed
address/data byte
Port A
D0–D7 data bus byte
Port B
I/O and/or CS0–CS7
I/O and/or CS0–CS7
AD0/A0–AD7/A7
Low-order multiplexed
address/data byte
Low-order address bus byte
AD8/A8–AD15/A15
High-order address
bus byte
High-order address bus byte
16-bit Data Bus
I/O or low-order address
lines or low-order multiplexed
address/data byte
Port A
Low-order data bus byte
Port B
I/O and/or CS0–CS7
High-order data bus byte
AD0/A0–AD7/A7
Low-order multiplexed
address/data byte
Low-order address bus byte
AD8/A8–AD15/A15
High-order multiplexed
address/data byte
High-order address bus byte
8.0
Operating
Modes (MCU
Configurations)
(cont.)
Table 3. Bus and Port Configuration Options
9.0
Programmable
Address
Decoder (PAD)
The PSD3XX contains two programmable arrays, referred to as PAD A and PAD B
(Figure 4). PAD A is used to generate chip select signals derived from the input address to
the internal EPROM blocks, SRAM, I/O ports, and Track Mode signals.
PAD B outputs to Ports B and C for off-chip usage. PAD B can also be used to extend the
decoding to select external devices or as a random logic replacement.
PAD A and PAD B receive the same inputs. The PAD logic is configured by PSDsoft
based on the designer’s input. The PAD’s non-volatile configuration is stored in a
re-programmable CMOS EPROM. Windowed packages are available for erasure by the
user. See Table 4 for a list of PAD A and PAD B functions.
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相關(guān)代理商/技術(shù)參數(shù)
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PSD301R-A-70JI 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals
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PSD301R-A-90JM 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals