NTE8255 NTE Electronics, Inc., NTE8255 Datasheet - Page 2

• Manufacturer Part Number: NTE8255
• Description: Integrated Circuit Programmable Peripheral Interface
• Manufacturer: NTE Electronics, Inc.

Note 3. Any set of eight (8) outputs from either Port A, B, or C can source 4mA into 1.5V.
Note 4. I
Note 5. I
Capacitance: (T
AC Characteristics: (T
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
Darlington Drive Current
Power Supply Current
Input Leakage Current
Output Leakage Current
Input Capacitance
I/O Capacitance
READ
Address Stable Before READ
Address Stable After READ
READ Pulse Width
Data Valid From READ
Data Float After READ
Time Between READS and/WRITES
WRITE
Address Stable Before WRITE
Address Stable After WRITE
WRITE Pulse Width
Data Valid to WRITE (T.E.)
Data Valid After WRITE
OL
OH
Parameter
Parameter
= 2.5mA for DB Port; 1.7mA for Peripheral Ports.
= −400μA for dB Port; −200μA for Peripheral Ports.
Parameter
A
= +25°C, V
A
A
= 0° to +70°C, V
CC
Symbol
Symbol
I
V
V
I
C
I
C
V
I
I
V
I
LOH
LOL
= V
OH
LIH
CC
LIL
OH
OL
I/O
IH
IN
IL
SS
= 0V onless otherwise specified)
Note 4
Note 5
V
V
V
V
V
V
f
returned to V
Symbol
c
EXT
CC
IN
IN
OUT
OUT
= 1MHz, Unmeasured pins
t
t
t
t
t
CC
CC
t
t
t
t
t
t
WW
DW
WD
AW
WA
AR
RA
RR
RD
DF
RV
= V
= 0.4V
= +5V, Output Open
= 1.5V, R
= V
= 0.4V, CS = 2C
= +5V ±5%, V
CC
Test Conditions
CC
Test Conditions
C
C
C
Note 7
L
L
L
, CS = 2V
SS
= 150pF
= 100pF
= 15pF
Test Conditions
EXT
= 750Ω, Note 3
SS
SS
= 0V unless otherwise specified)
−0.5
Min
Min
Min
200
200
200
100
2.4
−1
10
20
2
−
−
−
−
−
−
−
−
0
0
−
−
0
0
Typ
Typ
Typ
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
Max Unit
0.45
Max Unit
Max Unit
V
120
−10
±10
−10
140
100
0.8
−4
10
10
20
−
−
−
−
−
−
−
−
−
−
−
CC
mA
mA
μA
μA
μA
μA
pF
pF
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
V
V