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參數(shù)資料
| 型號(hào)： | M34506M2-XXXFP |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, MICROCONTROLLER, PDSO20 |
| 封裝： | 5.30 X 12.60 MM, 1.27 MM PITCH, PLASTIC, SOP-20 |
| 文件頁(yè)數(shù)： | 35/114頁(yè) |
| 文件大?。?/td> | 836K |
| 代理商： | M34506M2-XXXFP |
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1-10
1
OVERVIEW
32180 Group User’s Manual (Rev.1.0)
1.3 Pin Functions
Table 1.3.1 Description of Pin Functions (2/5)
Type
Pin Name
Signal Name
Input/Output Description
Data bus
DB0–DB15
Data bus
Input/output
This 16-bit data bus is used to connect external devices.
When writing in byte units during a write cycle, the output
data at the invalid byte position is undefined. During a
read cycle, data on the entire 16-bit bus is always read in.
However, only the data at the valid byte position is
transferred into the internal circuit.
Bus control
CS0#–CS3# Chip select
Output
These are chip select signals for external devices.
RD#
Read
Output
This signal is output when reading an external device.
WR#
Write
Output
This signal is output when writing to an external device.
BHW#/BLW# Byte high/low write
Output
When writing to an external device, this signal indicates the
valid byte position to which data is transferred. BHW# and
BLW# correspond to the upper address side (bits 0–7 are
valid) and the lower address side (bits 8–15 are valid),
respectively.
BHE#
Byte high enable
Output
During an external device access, this signal indicates that
the high-order data (bits 0–7) is valid.
BLE#
Byte low enable
Output
During an external device access, this signal indicates that
the low-order data (bits 8–15) is valid.
WAIT#
Wait
Input
When accessing an external device, a low-level input on
WAIT# pin extends the wait cycle.
HREQ#
Hold request
Input
This input is used by an external device to request control
of the external bus. A low-level input on HREQ# pin places
the CPU in a hold state.
HACK#
Hold acknowledge
Output
This signal notifies that the CPU has entered a hold state
and relinquished control of the external bus.
Multijunction
TIN0–TIN33 Timer input
Input
Input pins for the multijunction timer.
timer
TO0–TO44
Timer output
Output
Output pins for the multijunction timer.
TCLK0
Timer clock
Input
Clock input pins for the multijunction timer.
–TCLK3
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PDF描述 |
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| M34507E4FP | 4-BIT, OTPROM, MICROCONTROLLER, PDSO24 |
| M34507M2-XXXFP | 4-BIT, MROM, MICROCONTROLLER, PDSO24 |
| M34507M4-XXXFP | 4-BIT, MROM, MICROCONTROLLER, PDSO24 |
| M34507M2-XXXFP | 4-BIT, MROM, MICROCONTROLLER, PDSO24 |
| M34509G4FP | 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO24 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M34506M4 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34506M4-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:4-BIT CISC SINGLE-CHIP MICROCOMPUTER 4500 SERIES |
| M34507E4FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34507M2-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:4-BIT CISC SINGLE-CHIP MICROCOMPUTER 4500 SERIES |
| M34507M4-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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