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參數(shù)資料
| 型號(hào)： | S568013MFA00E |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 數(shù)字信號(hào)處理 |
| 英文描述： | 0-BIT, 8 MHz, OTHER DSP, PQFP32 |
| 封裝： | ROHS COMPLIANT, LQFP-32 |
| 文件頁數(shù)： | 125/125頁 |
| 文件大小： | 1702K |
| 代理商： | S568013MFA00E |
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AC Electrical Characteristics
56F8013/56F8011 Data Sheet, Rev. 11
Freescale Semiconductor
99
10.2.1
Voltage Regulator Specifications
The 56F8013/56F8011 have two on-chip regulators. One supplies the PLL and relaxation oscillator. It has
no external pins and therefore has no external characteristics which must be guaranteed (other than proper
operation of the device). The second regulator supplies approximately 2.5V to the 56F8013/56F8011’s
core logic. This regulator requires an external 2.2μF, or greater, capacitor for proper operation. Ceramic
and tantalum capacitors tend to provide better performance tolerances. The output voltage can be
10.3 AC Electrical Characteristics
Tests are conducted using the input levels specified in Table 10-5. Unless otherwise specified,
propagation delays are measured from the 50% to the 50% point, and rise and fall times are measured
between the 10% and 90% points, as shown in Figure 10-2.
Table 10-7 Power-On Reset Low-Voltage Parameters
Characteristic
Symbol
Min
Typ
Max
Unit
Low-Voltage Interrupt for 3.3V supply1
1. When VDD drops below VEI3.3, an interrupt is generated.
VEI3.3
2.58
2.7
—
V
Low-Voltage Interrupt for 2.5V supply2
2. When VDD drops below VEI32.5, an interrupt is generated.
VE12.5
—2.15—
V
Low-Voltage Interrupt Recovery Hysteresis
VEIH
—50
—
mV
Power-On Reset3
3. Power-On Reset occurs whenever the internally regulated 2.5V digital supply drops below 1.8V. While
power is ramping up, this signal remains active for as long as the internal 2.5V is below 2.15V or the 3.3V
1/O voltage is below 2.7V, no matter how long the ramp-up rate is. The internally regulated voltage is
typically 100mV less than VDD during ramp-up until 2.5V is reached, at which time it self-regulates.
POR
—
1.8
1.9
V
Table 10-8. Regulator Parameters
Characteristic
Symbol
Min
Typical
Max
Unit
Short Circuit Current
ISS
—
450
650
mA
Short Circuit Tolerance
(output shorted to ground)
TRSC
—
30
Minutes
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