I N T E G R A L
IN82C54
Korzhenevskogo 12, Minsk, 220064, Republic of
Belarus
Fax: +375 (17) 278 28 22,
Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61,
277 69 16
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URL: www.bms.by
P
ROGRAMMABLE TIMER
LSI of programmable ASIC timer provides operation of three independent counters in six modes.
Synchronous control method with minimum period of tact impulses sequence is used in circuit =200
ns. Circuit is implemented in 239.24-1 package.
Parameter indication,
Letter
Measurement mode
Rate
Temperature
measurements unit
symbol
no more
Output voltage of high level, V
U
OH
U
CC
= 4,5V
I
OH
=-0.4m
U
IH
=U
CC
-0,8V
U
IL
=0,8 V
U
CC
-0,41
-10 - +70
o
C
Output voltage of low level, V
U
OL
U
CC
=4,5 V
l
OL
=3.2m
U
IH
= U
CC
-0,8 V
U
IL
=0,8 V
- 0,4
Input current, mk
I
I
U
CC
=5,5 V
U
IH
-5.5 VUll-0V
- -2,0
Consumption current in static
mode, mk Input current of low
level "",
mk
I
CC
U
CC
=5.5V, U
ll
=0V
U
IH
=5.5V, U
CC
=5,5V
U
OL
=0,8 V
- 10
Output current of high level
"",
I
OZL
U
CC
=5,5 V
U
OH
=Ucc-0,8 V
- -
Sequence period of tact signal
impulses, ns
T
CY
U
CC
= 5,5 V
-
125
Parameter name
measurement unit
Letter
symbol
Limit mode rate
Supply voltage, V
U
CC
-0,3
6
(7 within 5s)
Input voltage of high level, V
U
IH
-
6
Input voltage of low level, V
U
IL
-0,3
-
Output current of high level,
m
I
OH
-
-
Output current of low level, m
I
OL
-
-
Tact signal impulses
sequence frequences, MHz:
- for timer
F
C
-
-
- for direct memory access
block
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