SI4010-C2-GT Silicon Laboratories Inc, SI4010-C2-GT Datasheet - Page 33

• Manufacturer Part Number: SI4010-C2-GT
• Description: IC TX 27-960MHZ FSK 3.6V 10MSOP
• Manufacturer: Silicon Laboratories Inc
• Series: EZRadio®r
• Type: Crystalless SoC RF Transmitterr

Specifications of SI4010-C2-GT

• Package / Case: 10-MSOP
• Mfg Application Notes: SI4010 Calculator Spreadsheet AppNote
• Frequency: 27MHz ~ 960MHz
• Applications: Garage Openers, RKE, Security Alarms
• Modulation Or Protocol: FSK, OOK
• Data Rate - Maximum: 100 kBaud
• Power - Output: 10dBm
• Current - Transmitting: 19.8mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Memory Size: 4kB RAM
• Features: 8051 MCU Core, Crystal-less Operation
• Voltage - Supply: 1.8 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Operating Frequency: 27 MHz to 960 MHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 1.8 V to 3.6 V
• Supply Current: 14.2 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 336-1997-5

11. System Description
11.1. Overview
The Si4010 is a fully integrated crystal-less CMOS SoC RF transmitter with an embedded CIP-51 8051
MCU as the core processor of the system. The device is designed for low power battery applications with
standby currents of less than 10 nA to optimize battery life. Upon power up, the device immediately enters
standby mode. In this mode, all blocks are powered down except for the low leakage high-voltage RAM
(HVRAM) which provides 8 bytes of memory that retains its state as long as the battery voltage is applied
and above 1.8 V. The Si4010 is awakened from standby mode by a falling edge to ground on any one of
the GPIO pins. In addition, the Si4010 has a low-power sleep timer for applications where the device is
required to wake up and periodically check for events instead of being wakened by a GPIO falling edge.
Upon wake up, the boot loader copies data from the one time programmable (OTP) NVM to CODE/XDATA
RAM (4 kB) because the MCU can only operate with programs stored in RAM or ROM. The copy process
occurs on each wake-up event and requires approximately 2 ms of fixed time plus 3.6 ms per kB of data or
16.4 ms to fill the full 4 kB of CODE/XDATA RAM. After the NVM boot copy process is completed, the MCU
runs the user program in RAM and can also run functions from ROM that are called by the user program
such as button service routines to facilitate button debouncing, button time stamps, etc. A complete list and
detailed description of all the API functions is given in application note “AN370: Si4010 Software Program-
ming Guide.”
GPIO5/C2CLK/LED
GPIO0/XTAL/VPP
14P SOIC
Package
Only
GPIO4/C2DAT
GPIO1
GPIO2
GPIO3
GPIO6
GPIO7
GPIO8
GPIO9
Si4010
CONTROLLER CORE
DIGITAL PERIPHERALS
AES 128b ACCEL
CONTR
256 BYTE XREG
256 BYTE IRAM
12K BYTE ROM
CIP-51 8051
PORT
4K BYTE RAM
TMR 2,3
INTC
RTC
Figure 11.1. Functional Block Diagram
C2
SFR
BUS
NVM
8 KB
CONTROLLER
MEMORY
COUNTER
EEPROM
DEMOD
128-bit
FREQ
TEMP
ODS
Rev. 1.0
OOK
FSK
LCOSC
SENSOR
HVRAM
8 Byte
TEMP
DIVIDER
RF ANALOG CORE
LPOSC
XTAL
OSC
TMR
SLP
VA
VD
PA
BANDGAP
LDO
POR
Si4010-C2
AUTO
TUNE
TXP
TXM
VDD
GND
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