XE1283
3.3.2
Operating range
Min
Max
Unit
Note
Voltage applied to VBAT with respect to VSS
2.4
5.5
V
Voltage applied to VBAT with respect to VSS during the flash
4.5
5.5
V
1
programming
Voltage applied to VPP with respect to VSS
Voltage applied to all pins except VPP and VBAT
Capacitor on VREG
VBAT
VSS
0.8
11.5
VBAT
1.2
V
V
μ F
Retention time at 85°C
Retention time at 55°C
Number of programming cycles
10
100
10
years
years
2
2
3
1.
2.
3.
During the programming of the device, the supply voltage should at least be equal to the supply voltage used
during normal operation, and temperature between 10°C and 40°C.
Valid only if programmed using a programming tool that is qualified
Circuits can be programmed more than 10 times but in that case, the retention time is no longer guaranteed.
3.3.3 Current consumption
The tables below give the current consumption for the circuit in different configurations. The figures are indicative only
and may change as a function of the actual software implemented in the circuit.
The peripherals (USRT, UART, CNT, VLD, CMPD) are disabled. The parallel ports are configured in input with pull up.
Their pins are not connected externally.
Operation mode
High speed CPU
CPU
1 MIPS
RC
1 MHz
Xtal
Off
Consumption
200 μ A
Comments
2.4V<>5.5V, 27 ° C
Note
1
320 μ A
410 μ A
310 μ A
2
3
4
Low speed CPU
.1 MIPS
100 kHz
Off
21 μ A
2.4V <>5.5V, 27 ° C
1
33 μ A
42 μ A
2
3
Low power CPU
32 kIPS
Off
32 kHz
7.5 μ A
2.4V <>5.5V, 27 ° C
1
11.0 μ A
14.5 μ A
2
3
Low power time
keeping
Fast wake-up time
keeping
Immediate wake-up
time keeping
HALT
HALT
HALT
Off
Ready
1 MHz
32 kHz
32kHz
Off
1.9 μ A
2.3 μ A
35 μ A
2.4V <>5.5V, 27 ° C
2.4V <>5.5V, 27 ° C
2.4V <>5.5V, 27 ° C
VLD static current
CMPD static current
1. Software without data access
2. 100% low power RAM access
? Semtech 2005
10
15 μ A
2 μ A
2.4V <>5.5V, 27 ° C
2.4V <>5.5V, 27 ° C
www.semtech.com
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