N80C251TB24 Intel, N80C251TB24 Datasheet - Page 5

• Manufacturer Part Number: N80C251TB24
• Description: IC MPU 8-BIT 5V 24MHZ 44-PLCC
• Manufacturer: Intel
• Series: 80Cr

Specifications of N80C251TB24

• Rohs Status: RoHS non-compliant
• Core Processor: MCS 251
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: SIO
• Peripherals: PWM, WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-PLCC
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Other names: 816721

1.0 INTRODUCTION ......................................................................................................................................... 1
2.0 NOMENCLATURE ...................................................................................................................................... 2
3.0 PINOUT ....................................................................................................................................................... 4
4.0 SIGNALS ..................................................................................................................................................... 8
5.0 ADDRESS MAP .........................................................................................................................................11
6.0 ELECTRICAL CHARACTERISTICS ......................................................................................................... 12
7.0 THERMAL CHARACTERISTICS .............................................................................................................. 30
6.1 D.C. Characteristics ........................................................................................................................... 12
6.2 Definition of AC Symbols ................................................................................................................... 14
6.3 A.C. Characteristics ........................................................................................................................... 14
6.4 AC Characteristics — Serial Port, Shift Register Mode ..................................................................... 28
6.5 External Clock Drive .......................................................................................................................... 29
6.3.1 External Bus Cycles, Nonpage Mode ..................................................................................... 18
6.3.2 External Bus Cycles, Page Mode ........................................................................................... 21
6.3.3 Definition of Real-Time Wait Symbols ..................................................................................... 24
6.3.4 External Bus Cycles, Real-Time Wait States .......................................................................... 24
HIGH-PERFORMANCE CHMOS Microcontroller
Commercial/Express
8xC251TB/TQ
Contents
v