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| Part Number | P89LPC921FDH,518 | P89LPC924FDH,518 | P89LPC9221FDH,518 | P89LPC921FDH,512 |
|---|---|---|---|---|
| Manufacturer | NXP USA Inc. | NXP USA Inc. | NXP USA Inc. | NXP USA Inc. |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete |
| Core Processor | 8051 | 8051 | 8051 | 8051 |
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit |
| Speed | 18MHz | 18MHz | 18MHz | 18MHz |
| Connectivity | I²C, UART/USART | I²C, UART/USART | I²C, UART/USART | I²C, UART/USART |
| Peripherals | Brown-out Detect/Reset, LED, POR, PWM, WDT | Brown-out Detect/Reset, LED, POR, PWM, WDT | Brown-out Detect/Reset, LED, POR, PWM, WDT | Brown-out Detect/Reset, LED, POR, PWM, WDT |
| Number of I/O | 18 | 18 | 18 | 18 |
| Program Memory Size | 4KB (4K x 8) | 4KB (4K x 8) | 8KB (8K x 8) | 4KB (4K x 8) |
| Program Memory Type | Flash | Flash | Flash | Flash |
| EEPROM Size | - | - | - | - |
| RAM Size | 256 x 8 | 256 x 8 | 256 x 8 | 256 x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.4V ~ 3.6V | 2.4V ~ 3.6V | 2.4V ~ 3.6V | 2.4V ~ 3.6V |
| Data Converters | - | A/D 4x8b; D/A 1x8b | - | - |
| Oscillator Type | Internal | Internal | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) | 20-TSSOP (0.173", 4.40mm Width) | 20-TSSOP (0.173", 4.40mm Width) | 20-TSSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 20-TSSOP | 20-TSSOP | 20-TSSOP | 20-TSSOP |
