XE8805AMI028LF Semtech, XE8805AMI028LF Datasheet - Page 13

• Manufacturer Part Number: XE8805AMI028LF
• Description: IC DAS 16BIT FLASH 8K MTP 64LQFP
• Manufacturer: Semtech

Specifications of XE8805AMI028LF

• Applications: Sensing Machine
• Core Processor: RISC
• Program Memory Type: FLASH (22 kB)
• Controller Series: XE8000
• Ram Size: 512 x 8
• Interface: UART, USRT
• Number Of I /o: 24
• Voltage - Supply: 2.4 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Supply Voltage Range: 2.4V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: LQFP
• No. Of Pins: 64
• For Use With: XE8000MP - PROG BOARD AND PROSTART2 CARD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 2-4. Operating range of the Flash memory
Retention time at 85°C
Retention time at 55°C
Number of programming cycles
2.3 Supply configurations
2.3.1
The flash version of the circuit can be run from a supply between 2.4V and 5.5V (Figure 2-1). The capacitor on
VREG has to be connected at all times (value in Table 2-2) to guarantee proper operation of the device. The
capacitor on VMULT is only required if the circuit is to be operated below 3V.
Figure 2-1. Supply configuration for the flash circuit.
2.3.2
For the ROM version, two possible operating modes exist: with and without voltage regulator. Using the voltage
regulator, low power consumption will be obtained even with supply voltages above 2.4V. Without the voltage
regulator (i.e. VREG short-circuited to VBAT), a higher speed can be obtained.
2.3.2.1
In this case, the internal voltage regulator is used in order to maintain low power consumption independent from
the supply voltage. The capacitor on VREG has to be connected at all times (value in Table 2-3) to guarantee
proper operation of the device. The capacitor on VMULT has to be connected only when VBAT<3V.
© Semtech 2006
1.
2.
Valid only if programmed using a programming tool that is qualified
Circuits can be programmed more than 10 times but after that, the retention time is no longer guaranteed.
All qualification tests have been done after 10 cycles.
Flash circuit
ROM circuit
Low power operation
VMULT
VBAT
VREG
VSS
C
vmult
C
vreg
2-3
Min.
2.4V – 5.5V
100
10
10
Max.
years
years
Note
1
1
2
XE8805/05A
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