900844 Datasheet, PDF (24/118 Pages) Freescale Semiconductor, Inc – Integrated Power Management IC for Ultra-mobile and Embedded Applications

ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
Table 4. Dynamic Electrical Characteristics
T_A = -40 to 85 °C, V_PWR = 3.0 to 4.4 V, in gathering these parametrics, Freescale used the external components described in
the Hardware Design Considerations section of this document, over the full load current range, unless otherwise noted. Typical
values are characterized at V_PWR = 3.6 V and 25 °C.
Characteristic
Symbol
Min
Typ
Max
Unit
SPI INTERFACE TIMING AND LOGIC IO
Time SPICSB has to be low before the first rising edge of SPICLK
Time SPICSB has to remain low after the last falling edge of SPICLK
Time SPICSB has to remain high between two transfers
Clock period of SPICLK (Equivalent to a maximum clock frequency of 25 MHz)
Part of the clock period where SPICLK has to remain high
Part of the clock period where SPICLK has to remain low
Time MOSI has to be stable before the next falling edge of SPICLK
Time MOSI has to remain stable after the falling edge of SPICLK
Time MISO will be stable before the next falling edge of SPICLK
Time MISO will remain stable after the falling edge of SPICLK
Time MISO needs to become active after the falling edge of SPICSB
Time MISO needs to become inactive after the rising edge of SPICSB
VIDEN/VID TIMING SPECIFICATION
t_SELSU
t_SELHLD
t_SELHIGH
t_CLKPER
t_CLKHIGH
t_CLKLOW
t_WRTSU
t_WRTHLD
t_RDSU
t_RDHLD
t_RDEN
t_RDDIS
20
-
-
ns
20
-
-
ns
20
-
-
ns
40
-
-
ns
18
-
-
ns
18
-
-
ns
5.0
-
-
ns
5.0
-
-
ns
5.0
-
-
ns
5.0
-
-
ns
Refer to Figure 6 for more details
5.0
-
-
ns
VIDEN/VID Debounce time
VIDEN Invalid State Hold Time
OSCILLATOR AND CLOCK OUTPUTS MAIN CHARACTERISTICS
RTC OSC Startup Time (Upon Application of Power)
RTC
t_DB
100
-
400
ns
t_HOLD
1.0
-
-
μs
-
-
-
500
ms
RTC Clock Frequency, Crystal OSC Nominal Frequency
VCC ELECTRICAL CHARACTERISTICS
Transient Load Speed of Change
Soft Start Time (Enable to output voltage ramp up from 0 to 1.0 V (25 mV/s))
Turn Off Time (OFF to output voltage ramp down to 0 V)
DAC Slew Rate
Switching Frequency
VNN ELECTRICAL CHARACTERISTICS
Transient Load Speed of Change
Soft Start Time (Enable to output voltage ramp up from 0 V to 1.0 V (25 mV/s))
Turn Off Time (OFF to output voltage ramp down to 0 V)
DAC Slew Rate
Switching Frequency
-
I_CC/t
t_SSCC
t_CCOFF
-
f_SW
I_NN/t
t_SSNN
t_NNOFF
-
f_SW
-
32.768
-
KHz
-
-
1.0
A/ns
-
-
0.06
ms
-
-
1.0
ms
-
25
-
mV/µs
-
1.0
-
MHz
-
-
1.0
A/ns
-
-
0.06
ms
-
-
1.0
ms
-
25
-
mV/µs
-
1.0
-
MHz
900844
24
Analog Integrated Circuit Device Data
Freescale Semiconductor