N80C251TB24 Intel, N80C251TB24 Datasheet - Page 35

• 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

6.5
0.45 V
Symbol
1/T
T
T
T
T
V
CHCX
CLCH
CHCL
CLCX
External Clock Drive
CC
CLCL
– 0.5
V
0.2 V
CC
0.45 V
AC inputs during testing are driven at V
and 0.45 V for a logic 0. Timing measurements are made at
a min of V
0.7 V
– 0.5
CC
Oscillator Frequency (F
– 0.1
CC
Figure 17. AC Testing Input, Output Waveforms
Figure 16. External Clock Drive Waveforms
T
IH
Parameter
Inputs
High Time
Rise Time
CHCL
Low Time
Fall Time
for a logic 1 and V
8xC251TB/TQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
Table 15. External Clock Drive
0.2 V
0.2 V
OSC
CC
CC
+ 0.9
– 0.1
)
T
OL
CLCX
T
CLCH
for a logic 0.
CC
– 0.5V for a logic 1
T
Min
CLCL
20
20
V
V
OL MAX
IH MIN
Outputs
T
CHCX
Max
24
10
10
Units
A4118-01
MHz
A4119-01
ns
ns
ns
ns
29