N80C251SQ16 Intel, N80C251SQ16 Datasheet - Page 3

• Manufacturer Part Number: N80C251SQ16
• Description: IC MPU 8-BIT 5V 16MHZ 44-PLCC
• Manufacturer: Intel
• Series: 80Cr

Specifications of N80C251SQ16

• Rohs Status: RoHS non-compliant
• Core Processor: MCS 251
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SIO
• Peripherals: PWM, WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 512 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: 804459

PRELIMINARY
System Bus and I/O Ports
SRC2 (8)
SRC1 (8)
Code Bus (16)
Drivers
P0.7:0
Port 0
ALU
DST (16)
8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
Instruction Sequencer
Drivers
Memory Data (16)
P2.7:0
Memory Address (16)
Port 2
Bus Interface
Register
File
Figure 1. 8XC251SA/SB/SP/SQ Block Diagram
MCS
8XC251SA/SB/SP/SQ Microcontroller
Code Address (24)
OTPROM/ROM
16 Kbytes
8 Kbytes
®
Interface
Memory
Code
Data
251 Microcontroller Core
or
Peripheral
1024 Bytes
Interface
Data RAM
Interrupt
512 Bytes
Handler
Clock
Reset
or
&
Clock & Reset
Drivers
P1.7:0
Port 1
Peripheral Signals
I/O Ports and
Peripherals
Watchdog
Serial I/O
Counters
Timer/
Timer
PCA
Drivers
P3.7:0
Port 3
A4214-01
3