Product Summary

The N80C251SB16 is a high-performance CHMOS microcontroller.

Parametrics

N80C251SB16 absolute maximum ratings: (1)Storage Temperature: -65 to +150℃; (2)Voltage on EA#/VPP Pin to VSS: 0 V to +13.0 V; (3)Voltage on Any other Pin to VSS:. -0.5 V to +6.5 V; (4)IOL per I/O Pin: 15 mA; (5)Power Dissipation: 1.5 W; (6)TA (Ambient Temperature Under Bias): Commercial 0 to +70℃; Express: -40 to +85℃; (7)VCC (Digital Supply Voltage): 4.5 V to 5.5 V; VSS : 0 V.

Features

N80C251SB16 features: (1)Real-time and Programmed Wait State Bus Operation; (2)Binary-code Compatible with MCS51; (3)Pin Compatible with 44-pin PLCC and 40-pin PDIP MCS 51 Sockets; (4)Register-based MCS 251 Architecture 40-byte Register File registers Accessible as Bytes, Words, or Double Words; (5)Enriched MCS 51 Instruction Set; (6)16-bit and 32-bit Arithmetic and Logic Instructions; (7)Compare and Conditional Jump Instructions; (8)Expanded Set of Move Instructions; (9)Linear Addressing; (10)256-Kbyte Expanded External Code/Data Memory Space; (11)ROM/OTPROM/EPROM Options: 16 Kbytes (SB/SQ), 8 Kbytes (SA/SP), or without ROM/OTPROM/EPROM; (12)16-bit Internal Code Fetch; (13)64-Kbyte Extended Stack Space; (14)On-chip Data RAM Options: 1-Kbyte (SA/SB) or 512-Byte (SP/SQ); (15)8-bit, 2-clock External Code Fetch in Page Mode; (16)Fast MCS 251 Instruction Pipeline.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
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N80C251SB16SF87
N80C251SB16SF87


IC MPU 8-BIT 5V 16MHZ 44-PLCC

Data Sheet

Negotiable 
Image Part No Mfg Description Data Sheet Download Pricing
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N80C186-25
N80C186-25

Other


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N80C186EA25
N80C186EA25


IC MPU 16-BIT 5V 25MHZ 68-PLCC

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N80C186EB25
N80C186EB25


IC MPU 16-BIT 5V 25MHZ 84-PLCC

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N80C186XL12
N80C186XL12


IC MPU 16BIT 5V 12MHZ 68PLCC

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N80C186XL20
N80C186XL20


IC MPU 16BIT 5V 20MHZ 68PLCC

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N80C186XL25
N80C186XL25


IC MPU 16-BIT 5V 25MHZ 68-PLCC

Data Sheet

Negotiable