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| Part Number | COP8TAC9CMW8/NOPB | COP8TAC9EMW8/NOPB |
|---|---|---|
| Manufacturer | Texas Instruments | National Semiconductor |
| Product Status | Discontinued at Digi-Key | Active |
| Core Processor | COP8 | COP8 |
| Core Size | 8-Bit | 8-Bit |
| Speed | 15MHz | 15MHz |
| Connectivity | ACCESS.Bus (2-Wire/I²C, SMBus), Microwire/Plus (SPI) | ACCESS.Bus (2-Wire/I²C, SMBus), Microwire/Plus (SPI) |
| Peripherals | POR, PWM, WDT | POR, PWM, WDT |
| Number of I/O | 16 | 24 |
| Program Memory Size | 4KB (4K x 8) | 4KB (4K x 8) |
| Program Memory Type | Flash | Flash |
| EEPROM Size | - | - |
| RAM Size | 128 x 8 | 128 x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.25V ~ 2.75V | 2.25V ~ 2.75V |
| Data Converters | - | - |
| Oscillator Type | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) | 28-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 20-SOIC | 28-SOIC |
