參數(shù)資料
型號： P89LV51RB2
廠商： NXP Semiconductors N.V.
元件分類： 8位微控制器
英文描述： 8-bit 80C51 3 V low power 16/32/64 kB Flash microcontroller with 1 kB RAM
中文描述： 8位80C51的3 V低功耗16/32/64 kB閃存1 KB RAM內(nèi)存控制器
文件頁數(shù)： 9/77頁
文件大?。?/td> 349K
代理商： P89LV51RB2
Philips Semiconductors
P89LV51RB2/RC2/RD2
8-bit microcontrollers with 80C51 core
Product data
Rev. 04 — 02 December 2004
9 of 77
9397 750 14342
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
[1]
ALE loading issue: When ALE pin experiences higher loading (>30 pF) during the reset, the microcontroller may accidentally enter into
modes other than normal working mode. The solution is to add a pull-up resistor of 3 k
to 50 k
to V
DD
, e.g., for ALE pin.
For 6-clock mode, ALE is emitted at
1
3
of crystal frequency.
[2]
EA
31
29
35
I
External Access Enable
: EA must be connected to V
SS
in order to enable the device to fetch code from the
external program memory. EA must be strapped to V
DD
for internal program execution. However, Security lock
level 4 will disable EA, and program execution is only
possible from internal program memory. The EA pin can
tolerate a high voltage of 12 V.
Address Latch Enable:
ALE is the output signal for
latching the low byte of the address during an access to
external memory. This pin is also the programming
pulse input (PROG) for flash programming. Normally the
ALE
[1]
is emitted at a constant rate of
1
6
the crystal
frequency
[2]
and can be used for external timing and
clocking. One ALE pulse is skipped during each access
to external data memory. However, if AO is set to ‘1’,
ALE is disabled.
No Connect
ALE/
PROG
30
27
33
I/O
NC
-
6, 17, 28,
39
15
1, 12, 23,
34
21
I/O
XTAL1
19
I
Crystal 1
: Input to the inverting oscillator amplifier and
input to the internal clock generator circuits.
Crystal 2:
Output from the inverting oscillator amplifier.
Power supply
Ground
XTAL2
V
DD
V
SS
18
40
20
14
38
16
20
44
22
O
I
I
Table 3:
Symbol
P89LV51RB2/RC2/RD2 pin description
…continued
Pin
DIP40
TQFP44
Type
Description
PLCC44
相關(guān)PDF資料
PDF描述
P89LV51RB2BA 8-bit 80C51 3 V low power 16/32/64 kB Flash microcontroller with 1 kB RAM
P89LV51RD2BN 8-bit 80C51 3 V low power 16/32/64 kB Flash microcontroller with 1 kB RAM
P89LV51RD2 8-bit 80C51 3 V low power 64 kB Flash microcontroller with 1 kB RAM
P89LV51RD2BA 8-bit 80C51 3 V low power 64 kB Flash microcontroller with 1 kB RAM
P89LV51RC2 8-bit 80C51 3 V low power 16/32/64 kB Flash microcontroller with 1 kB RAM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P89LV51RB2BA 功能描述:8位微控制器 -MCU 3V 16K/512 FL 12 CLK ISP/IAP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
P89LV51RB2BA,512 功能描述:8位微控制器 -MCU 3V 16K/512 FL 12 RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
P89LV51RB2BBC 功能描述:8位微控制器 -MCU 3V 16K/512 FL 12 CLK ISP/IAP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
P89LV51RB2BBC,557 功能描述:8位微控制器 -MCU 3V 16K/512 FL 12 CLK ISP/IAP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
P89LV51RC2 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit 80C51 3 V low power 16/32/64 kB Flash microcontroller with 1 kB RAM
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