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參數(shù)資料
| 型號(hào)： | P80CL31 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Low voltage 8-bit microcontrollers with UART |
| 中文描述： | 低電壓的8位微控制器的UART的 |
| 文件頁數(shù)： | 10/68頁 |
| 文件大?。?/td> | 305K |
| 代理商： | P80CL31 |
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1997 Apr 15
10
Philips Semiconductors
Product specification
Low voltage 8-bit microcontrollers with
UART
P80CL31; P80CL51
ALE
30
27
Address Latch Enable
. Output pulse for latching the low byte of the
address during access to external memory. ALE is emitted at a constant
rate of
1
6
×
f
osc
, and may be used for external timing or clocking purposes
(assuming MOVX instructions are not used).
External Access
. When EA is held HIGH the CPU executes out of internal
program memory (unless the program counter exceeds 0FFFH). Holding
EA LOW forces the CPU to execute out of external memory regardless of
the value of the program counter.
Port 0
: 8-bit open-drain bidirectional I/O port. As an open-drain output
port it can sink 8 LS TTL loads. Port 0 pins that have logic 1s written to
them float, and in that state will function as high impedance inputs.
Low-order addressing
: Port 0 is also the multiplexed low-order address
and data bus during access to external memory. The strong internal
pull-ups are used while emitting logic 1s within the low order address.
Power supply.
Not connected.
EA
31
29
P0.7 to P0.0
AD7 to AD0
32 to 39
30 to 37
V
DD
n.c.
40
38
6, 17, 28,
39
SYMBOL
PIN
DESCRIPTION
DIP40
VSO40
QFP44
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| P80CL31HFH | Low voltage 8-bit microcontrollers with UART |
| P80CL51HFH | Low voltage 8-bit microcontrollers with UART |
| P80CL31HFP | Low voltage 8-bit microcontrollers with UART |
| P80CL51HFP | Low voltage 8-bit microcontrollers with UART |
| P80CL31HFT | Low voltage 8-bit microcontrollers with UART |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| P80CL31HFB | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| P80CL31HFD | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| P80CL31HFH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-voltage single-chip 8-bit microcontrollers |
| P80CL31HFHB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-voltage single-chip 8-bit microcontrollers |
| P80CL31HFHB-S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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