80C51 8-bit microcontroller family 8KB/16KB/32KB/64K" />
參數(shù)資料
型號: P87C51RD2FBD/01,15
廠商: NXP Semiconductors
文件頁數(shù): 2/67頁
文件大?。?/td> 0K
描述: IC 80C51 MCU 8BIT 44LQFP
標(biāo)準(zhǔn)包裝: 800
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
程序存儲器容量: 64KB(64K x 8)
程序存儲器類型: OTP
RAM 容量: 1K 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: -40°C ~ 85°C
封裝/外殼: 44-LQFP
包裝: 托盤
其它名稱: 568-7909
P87C51RD2FBD/01,15-ND
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
10
SPECIAL FUNCTION REGISTERS (Continued)
SYMBOL
DESCRIPTION
DIRECT
ADDRESS
BIT ADDRESS, SYMBOL, OR ALTERNATIVE PORT FUNCTION
MSB
LSB
RESET
VALUE
D7
D6
D5
D4
D3
D2
D1
D0
PSW*
Program Status Word
D0H
CY
AC
F0
RS1
RS0
OV
F1
P
00000000B
RCAP2H#
Timer 2 Capture High
CBH
00H
RCAP2L#
Timer 2 Capture Low
CAH
00H
SADDR#
Slave Address
A9H
00H
SADEN#
Slave Address Mask
B9H
00H
SBUF
Serial Data Buffer
99H
xxxxxxxxB
9F
9E
9D
9C
9B
9A
99
98
SCON*
Serial Control
98H
SM0/FE
SM1
SM2
REN
TB8
RB8
TI
RI
00H
SP
Stack Pointer
81H
07H
8F
8E
8D
8C
8B
8A
89
88
TCON*
Timer Control
88H
TF1
TR1
TF0
TR0
IE1
IT1
IE0
IT0
00H
CF
CE
CD
CC
CB
CA
C9
C8
T2CON*
Timer 2 Control
C8H
TF2
EXF2
RCLK
TCLK
EXEN2
TR2
C/T2
CP/RL2
00H
T2MOD#
Timer 2 Mode Control
C9H
T2OE
DCEN
xxxxxx00B
TH0
Timer High 0
8CH
00H
TH1
Timer High 1
8DH
00H
TH2#
Timer High 2
CDH
00H
TL0
Timer Low 0
8AH
00H
TL1
Timer Low 1
8BH
00H
TL2#
Timer Low 2
CCH
00H
TMOD
Timer Mode
89H
GATE
C/T
M1
M0
GATE
C/T
M1
M0
00H
WDTRST
Watchdog Timer Reset
A6H
*
SFRs are bit addressable.
#
SFRs are modified from or added to the 80C51 SFRs.
Reserved bits.
OSCILLATOR CHARACTERISTICS
XTAL1 and XTAL2 are the input and output, respectively, of an
inverting amplifier. The pins can be configured for use as an
on-chip oscillator.
To drive the device from an external clock source, XTAL1 should be
driven while XTAL2 is left unconnected. Minimum and maximum
high and low times specified in the data sheet must be observed.
This device is configured at the factory to operate using 12 clock
periods per machine cycle, referred to in this datasheet as “12-clock
mode”. It may be optionally configured on commercially available
parallel programming equipment or via software to operate at
6 clocks per machine cycle, referred to in this datasheet as “6-clock
mode”. (This yields performance equivalent to twice that of standard
80C51 family devices). Also see next page.
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