参数资料
型号: P80C31X2BN,112
厂商: NXP Semiconductors
文件页数: 22/62页
文件大小: 0K
描述: IC 80C51 MCU 128 ROMLESS 40DIP
标准包装: 9
系列: 80C
核心处理器: 8051
芯体尺寸: 8-位
速度: 33MHz
连通性: EBI/EMI,UART/USART
外围设备: POR
输入/输出数: 32
程序存储器类型: ROMless
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振荡器型: 内部
工作温度: 0°C ~ 70°C
封装/外壳: 40-DIP(0.600",15.24mm)
包装: 管件
其它名称: 935269613112
P80C31X2BN
P80C31X2BN-ND
Philips Semiconductors
Product data
P80C3xX2; P80C5xX2;
P87C5xX2
80C51 8-bit microcontroller family
4K/8K/16K/32K ROM/OTP, low voltage (2.7 to 5.5 V),
low power, high speed (30/33 MHz)
2003 Jan 24
29
80C51 Internal Bus
SBUF
Zero Detector
D
Q
S
CL
Write
to
SBUF
TX Control
TX Clock
Send
Data
Start
RX Control
Start
RX Clock
T1
Serial
Port
Interrupt
Input Shift Register
(9 Bits)
Load
SBUF
Shift
SBUF
Read
SBUF
80C51 Internal Bus
TxD
TB8
÷ 16
1-to-0
Transition
Detector
Sample
÷ 2
Timer 1
Overflow
SMOD = 1
SMOD = 0
Shift
Bit Detector
RxD
R1
÷ 16
Load
SBUF
Shift
1FFH
Transmit
Send
S1P1
Shift
TX
Clock
Write to SBUF
Start Bit
TxD
Stop Bit
D0
D1
D2
D3
D4
D5
D6
D7
TI
RX
Clock
÷ 16 Reset
Start
Bit
RxD
Stop Bit
D0
D1
D2
D3
D4
D5
D6
D7
Bit Detector
Sample Times
Shift
RI
Receive
Data
TB8
RB8
Stop Bit Gen.
SU00542
Figure 17. Serial Port Mode 3
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