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Crowtail SIM A7670E 4G ModuleCrowtail SIM-A7670E Drop-in 4G LTE Cat-1 module delivers 10 Mbps data, global GNSS positioning and Crowtail connectors—perfect for IoT trackers, SMS dialers and remote sensors.SpecificationsIt’s an LTE Cat-1 4G module using the Simcom SIM A7670E chip, optimized for Europe only.Offers 4G data transmission, voice calls, and multisatellite navigation support: GPS, GLONASS, and BDS.Cellular & Network CapabilitiesLTE-FDD bands supported: B1, B3, B5, B7, B8, B20GSM bands: 900 MHz and 1800 MHzData speeds:LTE: 10 Mbps downlink / 5 Mbps uplinkGPRS/EDGE: up to 236.8 kbps up/downTransmit power:GSM (EGSM900): Class 4 (≈33 dBm ± 2 dB)GSM (DCS1800): Class 1 (≈30 dBm ± 2 dB)EDGE (EGSM900): Class E2 (~27 dBm ± 3 dB)EDGE (DCS1800): Class E1 (~26 dBm 3/–4 dB)LTE: Class 3 (≈23 dBm ± 7 dB)Interfaces & ConnectivityCommunication interfaces: UART and USB (via USB-C)Firmware upgrade methods: USB and FOTA (firmware-over-the-air)Supported network protocols: TCP/IP, IPv4, IPv6, Multi-PDP, FTP, FTPS, HTTP, HTTPS, DNSPhonebook types: SM, FD, ON, AP, SDNBlock diagram (on Elecrow page) shows interfaces like USB-C, UART header (HY2.0-4P), battery charging (PH2.0-2P), power button, SIM slot, GNSS antenna, etc.Power RequirementsSupply voltage (VBAT): 3.4 V to 4.2 V (typical: 3.8 V)Power interface: USB-C for both power and communication; also includes a battery terminalSize & WeightDimensions: ~35 mm × 50 mmWeight: ~19.5 gFrequency & Cellular BandsGSM/EGSM: 850, 900, 1800, 1900 MHz (specific support varies – A7670E includes EGSM900 and DCS1800)LTE-FDD bands: B1, B3, B5, B7, B8, B20, B28, B66 (as per module table; A7670E supports some of these)LTE-TDD bands: B34, B38, B39, B40, B41Physical & Interface LayoutForm factor: LGA module, ~24 × 24 × 2.5 mm, 88 pins (68 outer, 20 inner)Interfaces include:Power (VBAT, USB_VBUS)USB 2.0 (slave)UART (full, debug, ordinary), with support for up to 3.6864 Mbps, hardware flow control, multiplexingPCM audio interface (voice calls possible)USIM interface (1.8 V / 3 V)ADC (12-bit, 0–1.3 V input)I²C (100/400 kbps)GPIOsNETLIGHT and status indication LEDsLDO 1.8 V output (max 50 mA)LTE Cat-1 throughput: up to 10 Mbps DL / 5 Mbps ULPacks voice, SMS, data features, temperature range of –30 °C to 80 °C (–40 to 85 °C extended)Transmit powers: as previously noted per band and standardAbsolute max ratings:VBAT max: 4.7 VI/O pins: ~2.1 VUSB_VBUS: up to 5.4 VOperating conditions: VBAT recommended 3.4–4.2 V (typ 3.8 V)Antenna design: 50 Ω impedance; low insertion loss recommended (<0.5 dB for 700–960 MHz, etc.)ESD and moisture sensitivity: Module is MSL-3, ESD-sensitive; follow proper handling guidelinesSummary TableFeatureSpecificationModule chipSIMcom A7670E (LTE Cat-1)Network bandsLTE-FDD B1/B3/B5/B7/B8/B20; GSM 900/1800SpeedsLTE: 10 Mbps DL / 5 Mbps UL; GPRS/EDGE: ~236.8 kbpsConnectivityUART, USB-C, SIM card interface, GNSS antenna, battery charging port, moreProtocolsTCP/IP, IPv4/6, FTP/FTPS, HTTP/HTTPS, DNS; Ethernet via USB (RNDIS/ECM)PowerVBAT 3.4–4.2 V (typ 3.8 V); USB-C power/commPhysical size35 × 50 mm breakout; core module 24 × 24 × 2.5 mmOperating conditions–30 °C to 80 °C (extended to –40 / 85 °C)Additional featuresVoice, SMS, GNSS (GPS/GLONASS/BDS), FOTA, LDO, ADC, GPIO, I²C, PCM audio VISIT OUR FACEBOOK PAGE FOR MORE INFO | MORE PRODUCT IN OUR SHOP SKU: LKMOD00164 Category: Module
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