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| Part Number | COP8TAB9EMW8 | COP8TAC9EMW8 | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Product Status | Discontinued at Digi-Key | Obsolete | 
| 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 | 24 | 24 | 
| Program Memory Size | 2KB (2K 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 | 28-SOIC (0.295", 7.50mm Width) | 28-SOIC (0.295", 7.50mm Width) | 
| Supplier Device Package | 28-SOIC | 28-SOIC |