N80C251SQ16 Intel, N80C251SQ16 Datasheet - Page 32

• 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

32
8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
0.45 V
V
CC
– 0.5
V
LOAD
V
0.2 V
V
CC
V
0.45 V
LOAD
LOAD
a min of V
AC inputs during testing are driven at V
and 0.45 V for a logic 0. Timing measurements are made at
For timing purposes, a port pin is no longer floating when a
100 mV change from load voltage occurs and begins to float
when a 100 mV change from the loading V
with I
0.7 V
– 0.5
CC
– 0.1
+ 0.1 V
– 0.1 V
CC
OL /
Figure 19. AC Testing Input, Output Waveforms
I
OH
T
Figure 18. External Clock Drive Waveforms
IH
Inputs
CHCL
= ± 20 mA.
for a logic 1 and V
Figure 20. Float Waveforms
0.2 V
0.2 V
Timing Reference
CC
CC
+ 0.9
– 0.1
Points
T
OL
CLCX
T
CLCH
for a logic 0.
CC
OH
– 0.5V for a logic 1
T
CLCL
/V
V
OL
OL MAX
V
IH MIN
level occurs
Outputs
T
CHCX
V
V
OH
OL
PRELIMINARY
+ 0.1 V
– 0.1 V
A4118-01
A4119-01
A4117-01