| Part Number | COP8SAA728N8 | COP8SAC728N8 | 
|---|---|---|
| Manufacturer | National Semiconductor | Texas Instruments | 
| Category | Embedded - Microcontrollers | Embedded - Microcontrollers | 
|   |   | |
| Product Status | Obsolete | Obsolete | 
| Core Processor | COP8 | COP8 | 
| Core Size | 8-Bit | 8-Bit | 
| Speed | 10MHz | 10MHz | 
| Connectivity | Microwire/Plus (SPI) | Microwire/Plus (SPI) | 
| Peripherals | POR, PWM, WDT | POR, PWM, WDT | 
| Number of I/O | 24 | 24 | 
| Program Memory Size | 1KB (1K x 8) | 4KB (4K x 8) | 
| Program Memory Type | OTP | OTP | 
| EEPROM Size | - | - | 
| RAM Size | 64 x 8 | 128 x 8 | 
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 
| Data Converters | - | - | 
| Oscillator Type | Internal | Internal | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C (TA) | 
| Mounting Type | Through Hole | Through Hole | 
| Package / Case | 28-DIP (0.600", 15.24mm) | 28-DIP (0.600", 15.24mm) | 
| Supplier Device Package | 28-DIP | 28-PDIP |