Product Specs

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Subject: Doc. No.: Rev: 2
UMC-STD31LF Product Specification Page 5 of 54
本資料為啟碁科技股份有限公司專有之財產，非經書面許可，不准透露或使用本資料，亦不准複印，複製或轉變成其他形式使用。
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission from WNC.
Form No.: 2-JT-00022-03_001
UMC-STD31LF Product Specification
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1 General features
UMC-STD31LF is the 254-pin contacting LGA type NAD(Network Access Device) with MTK 2731R/P which is
dual-core high performance ARM○R Cortec-A53 MPCoreTM operating up to 1.46GHz SOC, can provide
abundant application such as eCall, telephony,OTA,remote diagnostic,mobile phone link and etc. For the
worldwide market, WNC has two regional variants that have dedicated RAT supporting band designed as
below
NA for North America region
EU for Europe region
1.1 Regional variant
RAT\Variant
EU
NA
GSM/EDGE/GPRS
900 and 1800
850 and 1900
WCDMA
B1/B3/B8
B2/B5
LTE
B1/B3/B7/B8/B20/B28
B2/B4/B5/B7/B12/B17/B25/B26/
B66/B71*
*B71 support from D sample
1.2 Performance key features
Key Features\Variant
EU
NA
M/N
UMC-STD31LFE
UMC-STD31LFN
Modem
MTK/MT2731V/RO
MTK/MT2731V/RO
Power Management
MTK/MT6389V/AOAMT
MTK/MT6389V/AOAMT
RF IC
MTK/MT6177AW/AOC
MTK/MT6177AW/AOC
Primary Antenna
GSM/LTE/WCDMA transmitting
and receiving
GSM/LTE/WCDMA transmitting
and receiving
Diversity Antenna
LTE; receiving only
LTE; receiving only
Maximum Data Rate
LTE Category 6
LTE Category 6
LTE Downlink CA(Intra)
Support
Support
LTE Downlink CA(Inter)
Not Supported
Not Supported
LTE Uplink CA
Not Supported
Not Supported
GNSS L1
Not Supported
Not Supported
LTE Power Class
3
3
MCP
NAND: 8G bits LDDR4:8G bits
NAND: 8G bits LDDR4:8G bits