Datasheet Details
Part number:
TD87C31BH, TD87C51
Manufacturer:
Intel
File Size:
2.26 MB
Description:
(td87c51 / td87c31) chmos single-chip 8-bit microcontroller.
Note:
This datasheet PDF includes multiple part numbers: TD87C31BH, TD87C51.
Please refer to the document for exact specifications by model.
TD87C31BH, TD87C51, (TD87C51 / TD87C31) CHMOS Single-Chip 8-Bit Microcontroller
VCC: Supply voltage during normal, Idle and Power Down operations.
VSS: Circuit ground.
Port 0: Port 0 is an 8-bit open drain bidirectional I/O port.
As an output port each pin can sink several LS TTL inputs.
Port 0 pins that have 1's written to them float, and in that state can be used as high-impe
87C51/80C51BH/80C31BH CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER Commercial/Express 87C51/80C51BH/80C51BHP/80C31BH See Table 1 for Proliferation Options High Performance CHMOS EPROM 24 MHz Operation Improved Quick-Pulse Programming Algorithm 3-Level Program Memory Lock Boolean Processor 128-Byte Data RAM 32 Programmable I/O Lines Two 16-Bit Timer/Counters Extended Temperature Range (- 40°C to + 85 ° C) 5 Interrupt Sources Programmable Serial Port TTL- and
TD87C31BH Features
* of the MCS-51 Family, as listed below: Pin P3.0 P3.1 P3.2 P3.3 P3.4 P3.5 P3.6 P3.7 Name RXD TXD INT0 INT1 T0 T1 WR RD Alternate Function Serial input line Serial output line External Interrupt 0 External Interrupt 1 Timer 0 external input Timer 1 external input External Data Memory Write strobe Exte
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