A lot of Five (5) Brand new never used SC87C51SBAA micro-Controllers.
Leftover units from our Electronics Manufacturing Operation.
DESCRIPTIONThe Philips 80C31/80C51/87C51 is a high-performance
micro-controller fabricated with Philips high-density CMOStechnology. The CMOS
87XC51 is functionally compatible with the NMOS 8031/8051 micro-controllers.
The Philips CMOS technologycombines the high speed and density characteristics
of HMOS withthe low power attributes of CMOS. Philips epitaxial substrate
minimizes latch-up sensitivity.The 8XC51 contains a 4k × 8 ROM (80C51) EPROM
a 128× 8 RAM, 32 I/O lines, two 16-bit counter/timers, a five-source,
two-priority level nested interrupt structure, a serial I/O port for either
multi-processor communications, I/O expansion or full duplex UART,and on-chip
oscillator and clock circuits.In addition, the device has two software
selectable modes of powerreduction—idle mode and power-down mode.
The idle mode freezesthe CPU while allowing the RAM, timers, serial port, and
interruptsystem to continue functioning. The power-down mode saves the RAM
contents but freezes the oscillator, causing all other chipfunctions to be
inoperative.FEATURES•8031/8051 compatible–4k × 8 ROM (80C51)–4k × 8 EPROM
87C51)–ROMless (80C31)–128 × 8 RAM–Two 16-bit counter/timers–Full duplex
serial channel–Boolean processor•Memory addressing capability–64k ROM and 64k
RAM•Power control modes:–Idle mode–Power-down mode•CMOS and TTL compatible•Five
speed ranges at VCC = 5V–12MHz–16MHz–24MHz–33MHz•Five package styles
Extended temperature ranges