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| Part Number | SST89E516RD2-40-I-TQJE | SST89E516RD2-40-C-TQJE | 
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | 
| Product Status | Obsolete | Obsolete | 
| Core Processor | 8051 | 8051 | 
| Core Size | 8-Bit | 8-Bit | 
| Speed | 40MHz | 40MHz | 
| Connectivity | EBI/EMI, SPI, UART/USART | EBI/EMI, SPI, UART/USART | 
| Peripherals | Brown-out Detect/Reset, POR, WDT | Brown-out Detect/Reset, POR, WDT | 
| Number of I/O | 36 | 36 | 
| Program Memory Size | 72KB (72K x 8) | 72KB (72K x 8) | 
| Program Memory Type | Flash | Flash | 
| EEPROM Size | - | - | 
| RAM Size | 1K x 8 | 1K x 8 | 
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 
| Data Converters | - | - | 
| Oscillator Type | External | External | 
| Operating Temperature | -40°C ~ 85°C (TA) | 0°C ~ 70°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 44-TQFP | 44-TQFP | 
| Supplier Device Package | 44-TQFP (10x10) | 44-TQFP (10x10) |