SST89E58RDA-40-C-PIE Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
Microchip SST89E58RDA-40-C-PIE is an 8-bit 8051-family microcontroller with 40 KB SuperFlash, running at up to 40 MHz with a 16-bit address bus, housed in a 40-pin PDIL package for embedded control applications.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 40
- Lifecycle
- OBSOLETE
- Datasheet
- SST89E58RDA-40-C-PIE Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8051-compatible 8-bit CPU core running at up to 40 MHz for high-speed legacy-compatible firmware execution
- 40 KB SuperFlash program memory with fast in-system reprogramming capability for field-updatable designs
- 40-pin PDIL through-hole package with 16-bit address bus supporting external memory expansion up to 64 KB
Applications
The SST89E58RDA-40-C-PIE is suited for industrial control, home automation, and legacy 8051-compatible embedded systems requiring in-system programmability. Its 40 KB SuperFlash memory and 40 MHz clock enable compact firmware execution for UART-based data acquisition, relay control, and keypad interface designs. The 40-pin PDIL package simplifies prototyping and field repair in systems where through-hole assembly is preferred over surface-mount technology.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Has ADC | NO |
| Address Bus Width | 16 |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | 8051 |
| Clock Frequency-Max | 40MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| External Data Bus Width | 16 |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | R-PDIP-T40 |
| JESD-609 Code | e3 |
| Low Power Mode | NO |
| Number of External Interrupts | 4 |
| Number of I/O Lines | 32 |
| Number of Serial I/Os | 1 |
| Number of Timers | 3 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP40,.6 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| RAM (bytes) | 1024 |
| RAM (words) | 1024 |
| ROM (words) | 40960 |
| ROM Programmability | FLASH |
| Speed | 40MHz |
| Supply Current-Max | 88mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | MATTE TIN |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 3A991.a.2 |
| HTS Code | 8542.31.00.15 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SST89E58RDA-40-C-PIE:
Frequently Asked Questions
How does the SST89E58RDA-40-C-PIE's 40 KB SuperFlash compare to standard 8051 OTP devices?
Unlike one-time-programmable (OTP) 8051 devices, the SST89E58RDA-40-C-PIE provides 40 KB of electrically erasable SuperFlash memory supporting in-system reprogramming, allowing firmware updates without removing the chip from the PCB. This reduces development iteration time by enabling direct code updates over a serial interface at up to 40 MHz.
What is the maximum operating frequency of the SST89E58RDA-40-C-PIE, and how does that affect real-time control tasks?
The SST89E58RDA-40-C-PIE operates at up to 40 MHz clock frequency, executing 8051 instructions at speeds sufficient for real-time UART communication at 115200 baud, PWM generation, and 16-bit counter-based timing tasks common in industrial automation and home appliance control.
Which package does the SST89E58RDA-40-C-PIE use, and why is it preferred for prototyping?
The SST89E58RDA-40-C-PIE is packaged in a 40-pin PDIL (plastic dual in-line) through-hole format, making it compatible with standard breadboards and DIP sockets. This simplifies prototyping and in-field replacement compared to surface-mount packages, particularly in industrial environments where manual rework is common.
Can the SST89E58RDA-40-C-PIE address external memory beyond its on-chip flash?
Yes. The 16-bit external address bus of the SST89E58RDA-40-C-PIE allows the device to access up to 64 KB of external data memory in addition to its 40 KB on-chip SuperFlash, enabling expanded data storage for applications such as data loggers, communication buffers, or larger lookup tables.
Related Guides
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
ADAQ7768-1 Design Guide for Precision Vibration and Dynamic Signal Measurement
Design ADAQ7768-1 precision data acquisition channels for vibration and dynamic sensing with the right bandwidth, reference, clock, and layout choices.
Jun 30, 2026
AD5204BRZ10 Design Guide for SPI-Controlled Gain and Offset Calibration
Design AD5204BRZ10 digital potentiometer calibration loops with bounded trim span, safe wiper current, clean SPI routing, and reliable startup codes.
Jun 30, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”