83C453 Datasheet | NXP Semiconductors

DESCRIPTION The Philips 8XC453 is an I/O expanded single-chip microcontroller fabricated with Philips high-density CMOS technology. Philips epitaxial substrate minimizes latch-up sensitivity. The 8XC453 is a functional extension of the 87C51 microcontroller with three additional I/O ports and four I/O control lines. The 8XC453 is available in 68-pin LCC packages. Four control lines associated with port 6 facilitate high-speed asynchronous I/O functions. The 87C453 includes an 8k × 8 EPROM, a 256 × 8 RAM, 56 I/O lines, two 16-bit timer/counters, a seven source, two priority level, nested interrupt structure, a serial I/O port for either a full duplex UART, I/O expansion, or multi-processor munications, and on-chip oscillator and clock circuits. The 87C453 has two software selectable modes of reduced activity for further power reduction; idle mode and power-down mode. Idle mode freezes the CPU while allowing the RAM, timers, serial port, and interrupt system to continue functioning. Power-down mode freezes the oscillator, causing all other chip functions to be inoperative while maintaining the RAM contents. FEATURES - 80C51 based architecture - Seven 8-bit I/O ports - Port 6 features : - Eight data pins - Four control pins - Direct MPU bus interface - ISA Bus Interface - Parallel printer interface - IBF and OBF interrupts - A flag latch on host write - On the microcontroller: - 8k × 8 EPROM Quick pulse programming algorithm Two-level program security system - 256 × 8 RAM - Two 16-bit counter/timers - Two external interrupts - External memory addressing capability - 64k ROM and 64k RAM - Low power consumption: - Normal operation: less than 24m A at 5V, 16MHz - Idle mode - Power-down mode - Reduced EMI - Full-duplex enhanced UART - Framing error detection - Automatic address recognition ORDERING INFORMATION EPROM1 P87C453EBAA OTP ROM P83C453EBAA TEMPERATURE °C AND PACKAGE 68- Pin Plastic Leaded Chip Carrier, 0 to +70 FREQ. (MHz) 3.5 to 16 PKG. DWG # SOT188-3 NOTE:...