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Specification
Brand : CHUANGYEIC
BulletPoint : SIM800 SIM800C Four Frequency GPRS/GSM Bluetooth-compatible Module Voice SMS Data Transmission Wireless Transceiver SMD IC Chip
ItemName : 1PC EM357-ZRTR IC RF TXRX+MCU 802.15.4 48VFQFN
ItemTypeKeyword : radio-frequency-transceivers
Manufacturer : CHUANGYEIC
Material : Copper
PartNumber : EM357-ZRTR
ProductDescription : Main characteristics:

• Quad Band 850/900/1800/1900MHz
•GPRS multi-slot class 12/10
•GPRS mobile station class B
• Meet the GSM 2/2+ standard
-Class 4 (2 W @850/900 MHz)
-Class 1 (1 W @1800/1900MHz)
• Bluetooth: 3.0+EDR
• Size: 17.6*15.7*2.3mm
• Weight: 1.3g
• Controlled by AT commands (3GPP TS27.007, 27.005 and
SIMCOM enhanced AT command set)
• SIM Application Toolkit
• Supply voltage range: 3.4 ~ 4.4V
• Low power consumption
• Operating temperature range: -40 to +85 °C



Data transmission:

• GPRS class 12: up to 85.6 kbps (downlink rate)
• Support PBCCH
•Coding schemes CS 1, 2, 3, 4
•PPP-stack
•USSD



Voice:

•Tricodec
- half rate (HR)
- full rate (FR)
- Enhanced Full Rate (EFR)
• AMR
- half rate (HR)
- full rate (FR)
• Support echo suppression algorithm



Interface:

42 SMT pins
• One way analog audio interface
• Support RTC
• USB interface
• Serial interface
• SIM card interface (3V / 1.8V)
• GPIO
•ADC
• GSM antenna pad
• BT antenna pad



SMS:
• Point to point MO and MT
• SMS broadcast
• Text and PDU mode



Software features:
• 0710 MUX protocol
• Embedded TCP/UDP protocol
•FTP/HTTP
• MMS
•e-mail
• DTMF detection
• Interference detection
•recording
•SSL
• Bluetooth (optional)



Compatibility:
•AT cellular command interface

•High version supports TTS (Chinese) and EAT function
ProductSiteLaunchDate : 2023-11-30T07:09:18.795Z
UnspscCode : 32101600