
1040
SAM4CP [DATASHEET]
43051E–ATPL–08/14
45.7.1.3 Backup Mode Configuration C: 32.768 kHz Crystal Oscillator enabled
POR Backup on VDDBU is disabled.
RTC running.
RTT enabled on 1 Hz mode.
Force Wake-up (FWUP) enabled.
Anti-Tamper Input TMP0, TMP1, TMP2, TMP3 and RTCOUT0 enabled.
Main Crystal Oscillator Disabled.
System IO Lines PA30, PA31, PB[0...3] in GPIO Input Pull-up Mode.
PLC in shutdown.
All other GPIO Lines in default state (See PIO Multiplexing Table).
Current measurement as per
Figure 45-15 on page 1041
.
45.7.1.4 Backup Mode Configuration D: 32.768 kHz Crystal Oscillator and LCD enabled
POR Backup on VDDBU is disabled.
RTC running.
RTT enabled on 1 Hz mode.
LCD Controller In Low-Power Mode, Static Bias and x64 Slow Clock Buffer On-time Drive Time.
LCD Voltage Regulator Used.
Force Wake-up (FWUP) enabled.
Anti-Tamper Input TMP0, TMP1, TMP2, TMP3 and RTCOUT0 enabled.
Main Crystal Oscillator Disabled.
System IO Lines PA30, PA31, PB[0...3] in GPIO Input Pull-up Mode.
PLC in shutdown.
All other GPIO Lines in default state (See PIO Multiplexing Table).
Current measurement as per
Figure 45-15 on page 1041
.
Table 45-44. Typical Current Consumption Values for Backup Mode Configurations A and B
Conditions
Configuration A
Configuration B
Unit
VDDBU = 3.6V @25°C
VDDBU = 3.3V @25°C
VDDBU = 3.0V @25°C
VDDBU = 2.5V @25°C
VDDBU = 1.6V @25°C
580
520
480
440
400
760
700
680
640
600
nA
VDDBU = 3.6V @85°C
VDDBU = 3.3V @85°C
VDDBU = 3.0V @85°C
VDDBU = 2.5V @85°C
VDDBU = 1.6V @85°C
1.57
1.5
1.44
1.3
1.16
1.8
1.7
1.65
1.56
1.43
μ
A