Product Summary
The AT89S8253-24JU is a low-power, high-performance CMOS 8-bit microcontroller. The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set and pinout. The on-chip downloadable Flash allows the program memory to be reprogrammed in-system through an SPI serial interface or by a conventional nonvolatile memory programmer.
Parametrics
AT89S8253-24JU absolute maximum ratings: (1)Operating Temperature: -55°C to +125°C; (2)Storage Temperature: -65°C to +150°C; (3)Voltage on Any Pin with Respect to Ground: -1.0V to +7.0V; (4)Maximum Operating Voltage: 6.6V; (5)DC Output Current: 15.0 mA.
Features
AT89S8253-24JU features: (1)64-byte User Signature Array; (2)2.7V to 5.5V Operating Range; (3)Fully Static Operation: 0 Hz to 24 MHz; (4)Three-level Program Memory Lock; (5)256 x 8-bit Internal RAM; (6)32 Programmable I/O Lines; (7)Three 16-bit Timer/Counters; (8)Nine Interrupt Sources; (9)Enhanced UART Serial Port with Framing Error Detection and Automatic Address Recognition; (10)Enhanced SPI (Double Write/Read Buffered) Serial Interface; (11)Low-power Idle and Power-down Modes; (12)Interrupt Recovery from Power-down Mode; (13)Programmable Watchdog Timer; (14)Dual Data Pointer; (15)Power-off Flag; (16)Flexible ISP Programming (Byte and Page Modes); (17)Page Mode: 64 Bytes/Page for Code Memory, 32 Bytes/Page for Data Memory; (18)Four-level Enhanced Interrupt Controller; (19)Programmable and Fuseable x2 Clock Option; (20)Internal Power-on Reset; (21)42-pin PDIP Package Option for Reduced EMC Emission; (22)Green (Pb/Halide-free) Packaging Option.
Diagrams
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![]() AT89S8253-24JU |
![]() Atmel |
![]() 8-bit Microcontrollers (MCU) 12kB Flash 256B RAM 2.7V-5.5V |
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