80C51 8-bit microcontroller family 8KB/16KB/32KB/64K" />
參數(shù)資料
型號(hào)： P87C51RB2BN,112
廠商： NXP Semiconductors
文件頁(yè)數(shù)： 3/67頁(yè)
文件大小： 0K
描述： IC 80C51 MCU 16K OTP 40-DIP
產(chǎn)品培訓(xùn)模塊： Migrating from 8/16-Bit MCUs to 32-Bit ARMs
標(biāo)準(zhǔn)包裝： 9
系列： 87C
核心處理器： 8051
芯體尺寸： 8-位
速度： 33MHz
連通性： EBI/EMI，UART/USART
外圍設(shè)備： POR，PWM，WDT
輸入/輸出數(shù)： 32
程序存儲(chǔ)器容量： 16KB（16K x 8）
程序存儲(chǔ)器類型： OTP
RAM 容量： 512 x 8
電壓 - 電源 (Vcc/Vdd)： 2.7 V ~ 5.5 V
振蕩器型： 內(nèi)部
工作溫度： 0°C ~ 70°C
封裝/外殼： 40-DIP（0.600"，15.24mm）
包裝： 管件
產(chǎn)品目錄頁(yè)面： 705 (CN2011-ZH PDF)
其它名稱： 568-3200-5
935271895112
P87C51RB2BN
Philips Semiconductors
Product data
P87C51RA2/RB2/RC2/RD2
80C51 8-bit microcontroller family 8KB/16KB/32KB/64KB OTP
with 512B/1KB RAM, low voltage (2.7 to 5.5 V), low power, high
speed (30/33 MHz)
2003 Jan 24
11
CLOCK CONTROL REGISTER (CKCON)
This device allows control of the 6-clock/12-clock mode by means of
both an SFR bit (X2) and an OTP bit. The OTP clock control bit
OX2, when programmed (6-clock mode), supersedes the X2 bit
(CKCON.0). The CKCON register is shown below in Figure 1.
X2
BIT
SYMBOL
FUNCTION
CKCON.7
–
Reserved.
CKCON.6
Reserved.
CKCON.5
Reserved.
CKCON.4
Reserved.
CKCON.3
Reserved.
CKCON.2
Reserved.
CKCON.1
Reserved.
CKCON.0
X2
CPU clock; 1 = 6 clocks for each machine cycle, 0 = 12 clocks for each machine cycle
SU01689
–
Not Bit Addressable
CKCON
Address = 8Fh
Reset Value = x0000000B
76
54
321
0
––
–
Figure 1. Clock control (CKCON) register
Also please note that the clock divider applies to the serial port for
modes 0 & 2 (fixed baud rate modes). This is because modes 1 & 3
(variable baud rate modes) use either Timer 1 or Timer 2.
Below is the truth table for the CPU clock mode.
Table 1.
OX2 clock mode bit
(can only be set by
parallel programmer)
X2 bit
(CKCON.0)
CPU clock mode
erased
0
12-clock mode
(default)
erased
1
6-clock mode
programmed
X
6-clock mode
RESET
A reset is accomplished by holding the RST pin high for at least two
machine cycles (12 oscillator periods in 6-clock mode, or 24 oscillator
periods in 12-clock mode), while the oscillator is running. To ensure a
good power-on reset, the RST pin must be high long enough to allow
the oscillator time to start up (normally a few milliseconds) plus two
machine cycles. At power-on, the voltage on VCC and RST must
come up at the same time for a proper start-up. Ports 1, 2, and 3 will
asynchronously be driven to their reset condition when a voltage
above VIH1 (min.) is applied to RST.
The value on the EA pin is latched when RST is deasserted and has
no further effect.
相關(guān)PDF資料
PDF描述
P87C52SFAA,512 IC 80C51 MCU 8K OTP 44-PLCC
P87C54X2BN,112 IC 80C51 MCU 256 RAM 40DIP
P87LPC760BDH,112 IC 80C51 MCU 1K OTP 14-TSSOP
P87LPC762FN,112 IC 80C51 MCU 2K OTP 20-DIP
P87LPC764FD,512 IC 80C51 MCU 4K OTP 20-SOIC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P87C51RB2FA 制造商:NXP Semiconductors 功能描述:MCU 8-bit P87 80C51 CISC 16KB EPROM 3.3V/5V 44-Pin PLCC Tube
P87C51RB2FA,512 功能描述:8位微控制器 -MCU 16K/512 OTP 12 CLK IND PLCC 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
P87C51RB2FN 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family
P87C51RB4A 制造商:NXP Semiconductors 功能描述:MCU 8-bit 8XC51 80C51 CISC 16KB EPROM 3.3V/5V 44-Pin PLCC
P87C51RC+4A 制造商:NXP Semiconductors 功能描述:IC 8BIT MCU OTP 32K 87C51 PLCC44
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*