参数资料
型号: P83C654EHBB
厂商: NXP SEMICONDUCTORS
元件分类: 微控制器/微处理器
英文描述: CMOS single-chip 8-bit microcontroller
中文描述: 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP44
封装: 10 X 10 X 1.75 MM, PLASTIC, QFP-44
文件页数: 18/88页
文件大小: 497K
代理商: P83C654EHBB
Philips Semiconductors
Product data
P83C654X2/P87C654X2
80C51 8-bit microcontroller family
16 kB OTP/ROM,
256B RAM, low voltage (2.7 to 5.5 V), low power, high speed
(30/33 MHz)
2004 Apr 20
18
OSC
÷
n*
C/T2 = 0
C/T2 = 1
TR2
CONTROL
TL2
(8 BITS)
TH2
(8 BITS)
TF2
RCAP2L
RCAP2H
EXEN2
CONTROL
EXF2
TIMER 2
INTERRUPT
T2EX PIN
TRANSITION
DETECTOR
T2 PIN
RELOAD
SU01253
* n = 6 in 6-clock mode, or 12 in 12-clock mode.
Figure 10. Timer 2 in Auto-Reload Mode (DCEN = 0)
÷
n*
C/T2 = 0
C/T2 = 1
TL2
TH2
TR2
CONTROL
T2 PIN
SU01254
FFH
FFH
RCAP2L
RCAP2H
(UP COUNTING RELOAD VALUE)
T2EX PIN
TF2
INTERRUPT
COUNT
DIRECTION
1 = UP
0 = DOWN
EXF2
OVERFLOW
(DOWN COUNTING RELOAD VALUE)
TOGGLE
OSC
* n = 6 in 6-clock mode, or 12 in 12-clock mode.
Figure 11. Timer 2 Auto Reload Mode (DCEN = 1)
相关PDF资料
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