參數(shù)資料
型號: SHARP_LH7A404
廠商: Sharp Corporation
英文描述: 32 BIT SYSTEM ON CHIP
中文描述: 32位片上系統(tǒng)
文件頁數(shù): 48/51頁
文件大?。?/td> 387K
代理商: SHARP_LH7A404
LH7A404
32-Bit System-on-Chip
48
Advance Data Sheet
Reset, Clock, and Power Controller
(RCPC) Waveforms
Figure 31 shows the behavior of the LH7A404 when
coming out of Reset or Power-On. Figure 32 shows
external reset timing, and Table 6 gives the timing
parameters.
NOTE:
*VDDC = VDDCmin
Table 6. Reset AC Timing
PARAMETER
DESCRIPTION
MIN.
TYP.
MAX.
UNIT
tOSC (32 kHz)
tOSC (14 MHz)
tRSTIW
tRSTOV
tRSTOH
Oscillator stabilization time after Power Up (VDDC = VDDCMIN)
Oscillator stabilization time after Power Up (VDDC = VDDCMIN)
nRESETIN Pulse Width (once sampled LOW)
nRESETIN LOW to nRESETOUT valid (once nRESETIN sampled LOW)
nRESETOUT hold relative to nRESETIN HIGH
550
2.5
ms
ms
HCLK
HCLK
HCLK
2
3.5
1
Figure 31. PLL Start-up
Figure 32. External Reset
LH7A404-22
tOSC
VDDC
VDDCmin
XTAL
nRESETI
LH7A404-23
tRSTIW
nRESETI
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