MCF52259 Datasheet, PDF (29/50 Pages) Freescale Semiconductor, Inc – MCF52259 ColdFire Microcontroller

Electrical Characteristics
2.2 Current Consumption
Table 7. Typical Active Current Consumption Specifications
Characteristic
Symbol
Typical¹
Active
(SRAM)
Typical¹
Active
(Flash)
Peak²
(Flash)
Unit
PLL @ 8 MHz
PLL @ 16 MHz
I_DD
22
31
30
36
mA
45
60
PLL @ 64 MHz
84
100
155
PLL @ 80 MHz
102
118
185
RAM standby supply current
• Normal operation: V_DD > V_STBY - 0.3 V
• Standby operation: V_DD < V_SS + 0.5 V
I_STBY
—
—
5
μA
20
μA
Analog supply current
• Normal operation
I_DDA
2³
15
mA
USB supply current
I_DDUSB
—
2
mA
PLL supply current
I_DDPLL
—
6⁴
mA
1 _{Tested at room temperature with CPU polling a status register. All clocks were off except the UART and CFM (when}
running from flash memory).
2 _{Peak current measured with all modules active, CPU polling a status register, and default drive strength with matching}
load.
3 _{Tested using Auto Power Down (APD), which powers down the ADC between conversions; ADC running at 4 MHz in}
Once Parallel mode with a sample rate of 3 kHz.
4 _{Tested with the PLL MFD set to 7 (max value). Setting the MFD to a lower value results in lower current consumption.}
Table 8. Current Consumption in Low-Power Mode, Code From Flash Memory^1,2,3
Mode
8 MHz (Typ) 16 MHz (Typ) 64 MHz (Typ) 80 MHz (Typ) Unit Symbol
Stop mode 3 (Stop 11)⁴
Stop mode 2 (Stop 10)⁴
Stop mode 1 (Stop 01)^4,5
9
Stop mode 0 (Stop 00)⁵
9
0.150
7.0
10
15
10
15
17
17
mA
I_DD
Wait / Doze
21
32
56
65
Run
23
36
70
81
1 _{All values are measured with a 3.30V power supply. Tests performed at room temperature.}
2 _{Refer to the Power Management chapter in the MCF52259 Reference Manual for more information on low-power}
modes.
3 _{CLKOUT, PST/DDATA signals, and all peripheral clocks except UART0 and CFM off before entering low-power}
mode. CLKOUT is disabled.
4 _{See the description of the Low-Power Control Register (LPCR) in the MCF52259 Reference Manual for more}
information on stop modes 0–3.
5 _{Results are identical to STOP 00 for typical values because they only differ by CLKOUT power consumption.}
CLKOUT is already disabled in this instance prior to entering low-power mode.
MCF52259 ColdFire Microcontroller, Rev. 0
Freescale Semiconductor
29