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参数资料
| 型号： | M37733MHBXXXFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP80 |
| 封装： | 14 X 20 MM, 0.80 MM PITCH, PLASTIC, QFP-80 |
| 文件页数： | 2/89页 |
| 文件大小： | 1506K |
| 代理商： | M37733MHBXXXFP |
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MITSUBISHI MICROCOMPUTERS
M37733MHBXXXFP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
10
PRELIMINARY
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
The bus interface unit operates using one of the waveforms (1) to
(10) shown in Figure 5. The standard waveforms are (1) and (2).
The ALE signal is used to latch only the address signal from the
multiplexed signal containing data and address.
The E signal becomes “L” when the bus interface unit reads an
instruction code or data from the memory or when it writes data to
the memory. Whether to perform read or write is controlled by the
R/W signal. When the R/W signal is “H”, read is performed; when “L”,
write is performed.
Waveform (1) in Figure 5 is used to access a single byte or two bytes
simultaneously. To read or write two bytes simultaneously, the first
address accessed must be even. Furthermore, when accessing an
external memory area in the memory expansion mode or the
microprocessor mode, set the bus width selection input pin (BYTE)
to “L” (external data bus has a width of 16 bits). The data bus in the
internal memory area is always treated as the 16-bit bus independent
of BYTE.
Fig. 5 Bus access timing
Port P2
E
ALE
Port P2
E
ALE
Internal clock
φ
Internal clock
φ
Port P2
E
ALE
AD
A+1
D
A
D
A + 1
D
AD
A+1
D
(1)
(2)
(3)
(4)
(5)
(6)
Access time
A
DD
A +1
A
D
A
D
A + 1
D
(7)
(8)
(9)
(10)
Access time
D
A
A + 1
D
AD
A + 1
D
Access time
A : Address
D : Data
Port P2
E
ALE
Port P2
E
ALE
Port P2
E
ALE
Port P2
E
ALE
Port P2
E
ALE
Port P2
E
ALE
Port P2
E
ALE
相关PDF资料 |
PDF描述 |
|---|---|
| M37734E8BFS | 16-BIT, UVPROM, 25 MHz, MICROCONTROLLER, CQCC80 |
| M37734E8BXXXFP | 16-BIT, OTPROM, 25 MHz, MICROCONTROLLER, PQFP80 |
| M37735EHBFS | 16-BIT, UVPROM, 25 MHz, MICROCONTROLLER, CQCC80 |
| M37735EHBXXXFP | 16-BIT, OTPROM, 25 MHz, MICROCONTROLLER, PQFP80 |
| M37735EHLXXXHP | 16-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PQFP80 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M37733MHL | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M37733MHLXXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M37733S4 | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:16-BIT CMOS MICROCOMPUTER |
| M37733S4BFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:16-BIT CMOS MICROCOMPUTER |
| M37733S4LHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:16-BIT CMOS MICROCOMPUTER |
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