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SST89E516RD2-40-C-TQJE
SST89E516RD2-40-C-TQJE
| Part Number | SST89E516RD2-40-C-TQJE |
|---|---|
| Manufacturer | Microchip Technology (Former SST) |
| Category | Integrated Circuits (ICs) > Embedded – Microcontrollers (MCU) |
| Description | 8-Bit 8051-Compatible Microcontroller, 40MHz, Dual-Block 72KB SuperFlash Memory, 1KB SRAM, Supports ISP & IAP, 44-TQFP Package, Commercial Temperature Range. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The SST89E516RD2-40-C-TQJE is an 8-bit CMOS 8051-compatible MCU developed by Microchip (SST). Adopting dual-block 72KB SuperFlash memory (64KB main + 8KB auxiliary flash), it supports ISP and IAP. Operating up to 40MHz with optional 6-clock mode for faster execution. Equipped with 1KB SRAM, multiple timers, enhanced UART, WDT and dual DPTR. Packaged in 44-TQFP, it operates at 0°C~70°C for industrial control and embedded devices.
Core Advantages
Dual-Block SuperFlash Architecture
64KB main flash plus 8KB auxiliary flash, enabling firmware IAP upgrade without external storage chips.
High-Speed Operation Mode
Optional 6-clock machine cycle mode doubles running efficiency, max frequency reaches 40MHz.
Rich Built-in Peripherals
Integrated 3×16-bit timers, enhanced UART, WDT, BOR and low EMI control function.
High Reliability Flash Storage
SuperFlash achieves 100,000 erase/write cycles and 100-year data retention, with security lock against code copying.
Key Specifications
| Brand | Microchip Technology / SST |
|---|---|
| RoHS Status | RoHS Compliant / Lead-Free (“JE” suffix) |
| EDA/CAD Model | Schematic symbol, PCB footprint and 3D STEP model available upon request |
| Warranty | 1-Year Standard Quality Warranty |
| Package / Case | 44-TQFP (10.0 mm × 10.0 mm, Pitch:0.8mm) |
| Mounting Type | Surface Mount (SMT / SMD) |
| Surface Marking / Silkscreen | SST89E516RD2 40-C-TQJE Marking |
| Processor Core | 8-Bit Standard 8051 Core |
| Max Clock Frequency | 40 MHz |
| Program Flash Memory | 72KB Total (64KB Primary Flash + 8KB Secondary Flash) |
| RAM Size | 1KB (256B Internal SRAM + 768B Extended XRAM) |
| Supply Voltage (VDD) | 4.5V ~ 5.5V (Nominal 5V) |
| GPIO Quantity | 36 General-Purpose I/O Pins |
| I/O Drive Current | Max 16mA Sink Current |
| Interrupt Source | 10 Interrupt Sources, 4 Priority Levels |
| On-Chip Peripherals | 3 × 16-bit Timer/Counter, Enhanced UART, WDT, BOR, Dual DPTR |
| External Memory Extension | Support up to 64KB External Program/Data Memory |
| Flash Endurance | 100,000 Erase/Write Cycles |
| Data Retention | Minimum 100 Years |
| Operating Temperature | 0°C ~ +70°C (Commercial Grade) |
| Packaging Format | Tray / Tape & Reel |
| Feature Note | No Built-in ADC, No Hardware SPI Interface |
Typical Applications
- Industrial control modules, sensor data acquisition equipment
- Communication gateway, serial port conversion devices
- Smart metering, power management control unit
- Access control, security alarm system controller
- Legacy 8051 system upgrade and replacement project
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Processing Time | Ship within 1-2 working days |
| Global Delivery Time | 3-7 working days |
| Shipping Carrier | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T, PayPal, Credit Card, Western Union |
Technical Support
Please submit inquiry for datasheet download, sample request, bulk quotation and stock verification. We will reply within 24 working hours.
Frequently Asked Questions
Q1: What does suffix TQJE mean in SST89E516RD2-40-C-TQJE?
A: TQ = 44-TQFP package; C = commercial temperature grade; J = lead-free specification; E = tray packaging.
Q2: What are the advantages of dual-block flash design?
A: It supports IAP online firmware upgrade. The auxiliary 8KB flash can run bootloader to update main program flash, without additional external memory.
Q3: Is this MCU pin-to-pin compatible with standard 8051 chips?
A: The instruction set is fully compatible with traditional 8051/80C51. Pinout matches 8051 series with the same package for easy project migration.
Q4: Does SST89E516RD2 have built-in SPI or ADC?
A: No hardware SPI and internal ADC/DAC. You need external chips to implement these functions if required.
Q5: What is the difference between 6-clock and 12-clock working mode?
A: At the same crystal frequency, the 6-clock mode doubles program execution speed and improves system response performance.
Q6: Are there alternative models for SST89E516RD2-40-C-TQJE?
A: Alternatives include SST89E564RD, STC89 series 8051 MCUs. We can offer proper cross-reference according to your project demands.
Q7: Can the secondary 8KB flash be used as data storage instead of EEPROM?
A: Yes. The auxiliary flash can simulate EEPROM for data storage, but please pay attention to limited erase-write cycles.
Q8: Is this component still in mass production?
A: This model accepts special orders. Please confirm stock availability before new hardware design. We can recommend alternatives if supply is tight.
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