ADUC7129BSTZ126-RL Analog Devices Inc, ADUC7129BSTZ126-RL Datasheet - Page 89

• Manufacturer Part Number: ADUC7129BSTZ126-RL
• Description: IC DAS MCU ARM7 ADC/DDS 80-LQFP
• Manufacturer: Analog Devices Inc
• Series: MicroConverter® ADuC7xxxr

Specifications of ADUC7129BSTZ126-RL

• Core Size: 16/32-Bit
• Program Memory Size: 126KB (126K x 8)
• Core Processor: ARM7
• Speed: 41.78MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: PLA, POR, PWM, PSM, Temp Sensor, WDT
• Number Of I /o: 38
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 10x12b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 80-LQFP
• Controller Family/series: (ARM7) ADUC
• No. Of I/o's: 40
• Cpu Speed: 41.78MHz
• No. Of Timers: 5
• Digital Ic Case Style: LQFP
• Embedded Interface Type: I2C, SPI, UART
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: ADUC7129BSTZ126-RLTR

POWER-ON RESET OPERATION
An internal power-on reset (POR) is implemented on the
ADuC7128/ADuC7129. For LV
POR holds the ADuC7128/ADuC7129 in reset. As LV
above 2.45 V, an internal timer times out for typically 64 ms
before the part is released from reset. The user must ensure that
the power supply, IOV
level by this time. On power-down, the internal POR holds the
ADuC7128/ADuC7129 in reset until LV
2.45 V. Figure 72 illustrates the operation of the internal POR
in detail.
DD
, has reached a stable 3.0 V minimum
DD
below 2.45 V, the internal
DD
has dropped below
DD
rises
Rev. 0 | Page 89 of 92
IOV
MRST
LV
POR
DD
DD
Figure 72. Internal Power-On Reset Operation
2.4V TYP
64ms TYP
ADuC7128/ADuC7129
0.12ms TYP
3.3V
2.6V
2.4V TYP