K25C81-FB Semtech, K25C81-FB Datasheet - Page 11

• Manufacturer Part Number: K25C81-FB
• Description: Versatile PC/XC/AT/PS/2 Compatible Keyboard Encoder
• Manufacturer: Semtech

Absolute Maximum Ratings
Ratings
Supply Voltage
Input Voltage
Current Drain per Pin
(not including Vss or Vdd)
Operating Temperature
K25C81
Storage Temperature Range
Thermal Characteristics
Characteristic
Thermal Resistence
DC Electrical Characteristics (Vdd=5.0 Vdc +/-10%, Vss=0 Vdc, Temperature range=T low to T high unless otherwise noted)
Characteristic
Output Voltage (I load<10µA)
Output High Voltage (I load=0.8mA)
Output Low Voltage (I load=1.6mA)
Input High Voltage
Input Low Voltage
Supply Current
I/O Ports Hi-Z Leakage Current
Input Current
I/O Port Capacitance
Control Timing (Vdd=5.0 Vdc +/-10%, Vss=0 Vdc, Temperature range=T low to T high unless otherwise noted)
Characteristic
Frequency of Operation
Copyright Semtech, 1997-2001
DOC5-C81-DS-105
ELECTRICAL SPECIFICATIONS
Crystal Option
External Clock Option
Plastic
DIP
Plcc
Symbol
Vdd
Vin
I
Ta
Tstg
Symbol
Tja
Symbol
Vol
Voh
Voh
Vol:
Vih
Vil
Idd
Iil
Iin
Cio
Symbol
fosc
11
Min
Vdd–0.1
Vdd–0.8
0.7xVdd
Vss
Min
dc
Value
-0.3 to +7.0
Vss -0.3 to Vdd +0.3
25
T low to T high
40 to +85
-65 to +150
Value
60
-60
70
Typ
4.7
8
Max
4.0
4.0
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Max
0.1
0.4
Vdd
0.2xVdd
7.0
+/-10
+/- 1
12
Unit
V
V
mA
° C
° C
Unit
° C per W
Unit
V
V
V
V
V
mA
µA
µA
pF
Unit
MHz