| Manufacturer | NXP USA Inc. |
| Series | 89V |
| Packaging | Tray |
| Part Status | Obsolete |
| Core Processor | 8051 |
| Core Size | 8-Bit |
| Speed | 40MHz |
| Connectivity | I²C, SPI, UART/USART |
| Peripherals | POR, PWM, WDT |
| Number of I/O | 36 |
| Program Memory Size | 64KB (64K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 2K x 8 |
| Voltage - Supply (Vcc/Vdd) | 4.5 V ~ 5.5 V |
| Data Converters | - |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Package / Case | 44-TQFP |
| Supplier Device Package | 44-TQFP (10x10) |
| Base Part Number | P89V66* |
IC MCU 8BIT 64KB FLASH 44TQFP - 8051 89V Microcontroller IC 8-Bit 40MHz 64KB (64K x 8) FLASH 44-TQFP (10x10)
Integrated circuits P89V664FBC,557
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