參數(shù)資料
型號(hào): P89CV51RB2FBC,557
廠商: NXP Semiconductors
文件頁(yè)數(shù): 75/76頁(yè)
文件大?。?/td> 0K
描述: IC 80C51 MCU FLASH 16K 44-TQFP
產(chǎn)品培訓(xùn)模塊: Migrating from 8/16-Bit MCUs to 32-Bit ARMs
標(biāo)準(zhǔn)包裝: 800
系列: 89C
核心處理器: 8051
芯體尺寸: 8-位
速度: 40MHz
連通性: EBI/EMI,SPI,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: 閃存
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-TQFP
包裝: 托盤
其它名稱: 568-4253
935284179557
P89CV51RB2FBC
P89CV51RB2_RC2_RD2_3
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 25 August 2009
8 of 76
NXP Semiconductors
P89CV51RB2/RC2/RD2
80C51 with 1 kB RAM, SPI
[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 from 3 k
to 50 k between e.g., ALE pin and V
DD.
[2]
For 6-clock mode, ALE is emitted at 1
3 of crystal frequency.
RST
10
4
I
Reset: While the oscillator is running, a HIGH logic state on this pin for two
machine cycles will reset the device.
EA
35
29
I
External Access Enable: EA must be connected to VSS in order to enable
the device to fetch code from the external program memory. EA must be
strapped to VDD for internal program execution.
ALE
33
27
I/O
Address Latch Enable: ALE is the output signal for latching the low byte of
the address during an access to external memory. 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 bit AO is set to 1, ALE is disabled.
XTAL1
21
15
I
Crystal 1: Input to the inverting oscillator amplier and input to the internal
clock generator circuits.
XTAL2
20
14
O
Crystal 2: Output from the inverting oscillator amplier.
VDD
44
38
supply
Power supply
VSS
22
16
supply
Ground
Table 3.
P89CV51RB2/RC2/RD2 Pin description …continued
Symbol
Pin
Type
Description
PLCC44
TQFP44
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P89CV51RC2 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit 80C51 5 V low power 64 kB flash microcontroller with 1 kB RAM, SPI, 6-clock CPU with 6/12-clock peripherals
P89CV51RC2FA 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit 80C51 5 V low power 64 kB flash microcontroller with 1 kB RAM, SPI, 6-clock CPU with 6/12-clock peripherals
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P89CV51RC2FA512 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述:
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