TRC20 is the official token standard used on the TRON blockchain for creating and managing fungible tokens via smart contracts. It is analogous to Ethereum's ERC-20 standard and defines a common interface that all TRC20-compliant tokens must implement.
How TRC20 Works
Every TRC20 token is essentially a smart contract running on the TRON Virtual Machine (TVM). This smart contract stores token balances, handles transfers, and manages approvals. Because every TRC20 token follows the same interface, wallets and exchanges can interact with any TRC20 token without needing custom integration code for each one.
Core TRC20 Functions
A standard TRC20 smart contract implements functions including: totalSupply (total token supply), balanceOf (balance of an address), transfer (send tokens), approve (authorize a spender), and transferFrom (transfer on behalf of another address). These standardized functions are what make TRC20 tokens interoperable across the TRON ecosystem.
Transaction Costs for TRC20
TRC20 token transfers consume both bandwidth and energy on the TRON network. A typical USDT TRC20 transfer costs under $0.01 and confirms in about 3 seconds. Users can stake TRX to receive bandwidth and energy resources, or let the network deduct a small amount of TRX when resources run out.
Popular TRC20 Tokens
The most widely used TRC20 token is USDT (Tether), which moves roughly $20 billion in volume every 24 hours on the TRC20 network. Other popular TRC20 tokens include USDC, BTT (BitTorrent Token), and many DeFi protocol tokens built on the TRON ecosystem.