LH79520N0M000B1 Sharp Microelectronics, LH79520N0M000B1 Datasheet - Page 41

• Manufacturer Part Number: LH79520N0M000B1
• Description: IC ARM7 BLUESTREAK MCU 176LQFP
• Manufacturer: Sharp Microelectronics
• Series: BlueStreak ; LH7r

Specifications of LH79520N0M000B1

• Rohs Status: RoHS non-compliant
• Core Processor: ARM7
• Core Size: 32-Bit
• Speed: 77.4MHz
• Connectivity: IrDA, Microwire, SPI, SSP, UART/USART
• Peripherals: DMA, LCD, PWM, WDT
• Number Of I /o: 64
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.62 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 176-LQFP
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Other names: 425-1820; LH79520N0M000

System-on-Chip
Reset, Clock, and Power Controller
(RCPC) Waveforms
when coming out of Reset or Power On.
gives the timing parameters.
Preliminary Data Sheet
tOSC32
tOSC14
tRSTIW
tRSTOV
tRSTIH
tRSTOH
PARAMETER
Figure 23 shows the method the LH79520 uses
Figure 24 shows external reset timing, and Table 9
nRESETO
nRESETI
XTAL32
XTAL14
VDDC
nRESETIN
nRESETO
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
nRESETIN hold extend to allow PLL to lock once XTAL is stable
VDDCmin
tOSC14
tRSTOV
DESCRIPTION
Table 9. Reset AC Timing
Figure 24. External Reset
Figure 23. PLL Start-up
tRSTIH
tOSC32
tRSTIW
9/10/03
tRSTOH
tRSTOH
MIN.
2
TYP.
3.5
1
MAX.
550
2.5
10
LH79520
HCLK
HCLK
HCLK
UNIT
ms
ms
79520-37
79520-60
µs
41