lh79524 NXP Semiconductors, lh79524 Datasheet - Page 54

• Manufacturer Part Number: lh79524
• Description: Lh79524; Lh79525 System-on-chip
• Manufacturer: NXP Semiconductors

LH79524/LH79525
Reset, Clock, and Power Controller
(RCPC) Waveforms
uses when coming out of Reset or Power On.
54
tOSC32
tOSC14
tRSTIH
tRSTIW
tRSTOV
tRSTOH
PARAMETER
Figure 37 shows the method the LH79524/LH79525
nRESETOUT
nRESETIN
XTAL32
XTAL14
nRESETOUT
VDDC
nRESETIN
Oscillator stabilization time after Power Up (VDDC = VDDCMIN)
Oscillator stabilization time after Power Up (VDDC = VDDCMIN) or
exiting STOP2
nRESETIN hold time after crystal stabilization
nRESETIN Pulse Width (once sampled LOW)
nRESETIN LOW to nRESETOUT valid
(once nRESETIN sampled LOW)
nRESETOUT hold relative to nRESETIN HIGH
VDDCmin
tOSC14
tRSTOV
DESCRIPTION
Table 18. Reset AC Timing
Figure 38. External Reset
NXP Semiconductors
Figure 37. PLL Start-up
Rev. 01 — 16 July 2007
tRSTIH
tOSC32
tRSTIW
tRSTOH
gives the timing parameters.
Figure 38 shows external reset timing, and Table 18
tRSTOH
MIN.
200
2
TYP.
Preliminary data sheet
3.5
1
System-on-Chip
MAX.
550
2.5
LH79525-22
LH79525-23
HCLK
HCLK
HCLK
UNIT
ms
ms
µS