N80C251SQ16 Intel, N80C251SQ16 Datasheet - Page 17

• 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

V
V
I
I
I
R
C
I
I
I
NOTES:
1.
2.
3.
4.
Symbol
IL
LI
TL
PD
DL
CC
OH
OH
PRELIMINARY
RST
IO
1
2
Under steady-state (non-transient) conditions, I
If I
to sink current greater than the listed test conditions.
Capacitive loading on ports 0 and 2 may cause spurious noise pulses above 0.4 V on the low-level
outputs of ALE and ports 1, 2, and 3. The noise is due to external bus capacitance discharging into
the port 0 and port 2 pins when these pins change from high to low. In applications where capacitive
loading exceeds 100 pF, the noise pulses on these signals may exceed 0.8 V. It may be desirable to
qualify ALE or other signals with a Schmitt trigger or CMOS-level input logic.
Capacitive loading on ports 0 and 2 causes the V
tion when the address lines are stabilizing.
Typical values are obtained using V
OL
Maximum I
Maximum I
Maximum Total I
all output pins
exceeds the test conditions, V
Output High Voltage
(Port 0 in External
Address)
Output High Voltage
(Port 2 in External
Address during Page
Mode)
Logical 0 Input Cur-
rent (Port 1, 2, 3)
Input Leakage Cur-
rent (Port 0)
Logical 1-to-0 Transi-
tion Current (Port 1,
2, 3)
RST Pulldown Resis-
tor
Pin Capacitance
Powerdown Current
Idle Mode Current
Operating Current
Parameter
8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
port 0
ports 1–3
OL
OL
Table 9. DC Characteristics at V
per port pin: 10 mA
per 8-bit port:
OL
for
V
V
V
V
V
V
26 mA
15 mA
71 mA
CC
CC
CC
CC
CC
CC
Min
OL
CC
40
– 0.3
– 0.7
– 1.5
– 0.3
– 0.7
– 1.5
may exceed the related specification. Pins are not guaranteed
= 5.0, T
A
(Note 4)
(Note 4)
(Note 4)
(Note 4)
Typical
OL
= 25°C and are not guaranteed.
OH
10
10
12
45
must be externally limited as follows:
CC
on ALE and PSEN# to drop below the specifica-
= 4.5 – 5.5 V (Continued)
+/-10
Max
-650
225
-50
20
15
80
Units
mA
mA
µA
µA
µA
k
µA
pF
V
V
I
I
I
I
I
I
VIN = 0.45 V
0.45 < VIN < V
VIN = 2.0 V
F
T
F
F
Test Conditions
OH
OH
OH
OH
OH
OH
A
OSC
OSC
OSC
= 25 °C
= -200 µA
= -3.2 mA
= -7.0 mA
= -200 µA
= -3.2 mA
= -7.0 mA
= 16 MHz
= 16 MHz
= 16 MHz
CC
17