参数资料
型号: MC9RS08LA8CLF
厂商: Freescale Semiconductor
文件页数: 9/33页
文件大小: 0K
描述: MCU 8BIT 8K FLASH W/LCD 48-LQFP
标准包装: 250
系列: RS08
核心处理器: RS08
芯体尺寸: 8-位
速度: 20MHz
连通性: SCI,SPI
外围设备: LCD,LVD,POR,PWM,WDT
输入/输出数: 31
程序存储器容量: 8KB(8K x 8)
程序存储器类型: 闪存
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
数据转换器: A/D 6x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 48-LQFP
包装: 托盘
Electrical Characteristics
MC9RS08LA8 Series MCU Data Sheet, Rev. 2
Freescale Semiconductor
17
Figure 9. Typical Crystal or Resonator Circuit
3.8
AC Characteristics
This section describes ac timing characteristics for each peripheral system.
3.8.1
Control Timing
6 Jitter is the average deviation from the programmed frequency measured over the specified interval at maximum fBUS.
Measurements are made with the device powered by filtered supplies and clocked by a stable external clock signal.
Noise injected into the FLL circuitry via VDD and VSS and variation in crystal oscillator frequency increase the CJitter
percentage for a given interval.
Table 10. Control Timing
Parameter
Symbol
Min
Typical
Max
Unit
Bus frequency (tcyc = 1/fBus)fBus
0
10
MHz
Real time interrupt internal oscillator period
tRTI
700
1000
1300
μs
External RESET pulse width1
1 This is the shortest pulse that is guaranteed to pass through the pin input filter circuitry. Shorter pulses may or may not be
recognized.
textrst
150
ns
KBI pulse width2
2 This is the minimum pulse width that is guaranteed to pass through the pin synchronization circuitry. Shorter pulses may or
may not be recognized. In stop mode, the synchronizer is bypassed so shorter pulses can be recognized in that case.
tKBIPW
1.5 tcyc
——
ns
KBI pulse width in stop1
tKBIPWS
100
ns
Port rise and fall time (load = 50 pF)3
Slew rate control disabled (PTxSE = 0)
Slew rate control enabled (PTxSE = 1)
3 Timing is shown with respect to 20% VDD and 80% VDD levels. Temperature range –40°C to 85°C.
tRise, tFall
11
35
ns
XOSC
EXTAL
XTAL
Crystal or Resonator
RS
C2
RF
C1
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