N80C251TB24 Intel, N80C251TB24 Datasheet - Page 10

• 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

8xC251TB/TQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
3.0
4
PINOUT
P1.7 / CEX4 / A17 / WCLK
P1.6 / CEX3 / WAIT#
Figure 3. 8xC251TB/TQ 44-pin PLCC Package
P3.2 / INT0#
P3.3 / INT1#
P1.5 / CEX2
P3.0 / RXD
P3.1 / TXD
P3.4 / T0
P3.5 / T1
V
RST
CC2
7
8
9
10
11
12
13
14
15
16
17
View of component as
mounted on PC board
8XC251TQ
8XC251TB
39
38
37
36
35
34
33
32
31
30
29
AD4 / P0.4
AD5 / P0.5
AD6 / P0.6
AD7 / P0.7
EA#
V
ALE
PSEN#
A15 / P2.7
A14 / P2.6
A13 / P2.5
SS2
B2977-01