| Part Number | TS87C58X2-MCC | TS87C58X2-MCB | 
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | 
| Category | Embedded - Microcontrollers | Embedded - Microcontrollers | 
|   |   | |
| Product Status | Obsolete | Obsolete | 
| Core Processor | 80C51 | 80C51 | 
| Core Size | 8-Bit | 8-Bit | 
| Speed | 40/20MHz | 40/20MHz | 
| Connectivity | UART/USART | UART/USART | 
| Peripherals | POR, WDT | POR, WDT | 
| Number of I/O | 32 | 32 | 
| Program Memory Size | 32KB (32K x 8) | 32KB (32K x 8) | 
| Program Memory Type | OTP | OTP | 
| EEPROM Size | - | - | 
| RAM Size | 256 x 8 | 256 x 8 | 
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 
| Data Converters | - | - | 
| Oscillator Type | Internal | Internal | 
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 44-QFP | 44-LCC (J-Lead) | 
| Supplier Device Package | 44-PQFP | 44-PLCC (16.6x16.6) |