CYRUSTEK CO.
continued from previous page
Parameter
Symbol
Analog COMMON Voltage
–
(with respect to V )
Analog COMMON Temper-
ature Cofficient
Segment Drive Voltage
Back plane Drive Voltage
Supply Current (Does not
include COMMON current)
Frequency counter input
level
–
–
–
–
4
4
–
5
5
1.2
–
6
6
1.6
–
DGND
+1.5
V
V
mA
V
AC Characteristics
Characteristics
Symbol Min.
LCD display frequency
–
Operating frequency
–
Buzzer drive frequency
–
FREQ-IN Waveform Rising Time
–
FREQ-IN Waveform Falling Time
–
FREQ-IN Waveform Pulse Width
17
Clock Delay Time
1
Data Set-up Time
–
EOC Pulse Width
–
Clock Pulse Width
500
MAX/MIN duration
0.8
MAX/MIN and HOLD Keys
Key debounce time
–
Key hold time
50
Typ.
167
40
2.5
–
–
–
–
–
–
–
–
32
–
Max.
–
–
–
20
20
–
5000
500
10
–
–
38
–
Unit
Hz
KHz
KHz
ns
ns
ns
s
ns
ms
ns
sec
ms
ms
7
July 4, 2002
Input terminals :
BZINM, BZINS, MAX/MIN, HOLD, RESET, FREQ/VOLT, CLK, DP1, DP2, DP3
Input logic high voltage
–
–
–
–
DGND
Input logic low voltage
+1.5
Pull down current
–
=
–
5
–
V
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Test Condition
25K
Between
Common and Posi-
tive Supply
25K
Between
Common
and
, C TA
C
to
=9V
to
=9V
=0V
Min.
2.8
–
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ES5108
3 1/2 Digit
ADC with serial output
Typ.
3.0
Max.
3.2
Units
V
60
75
ppm/ C
ETC [ ETC ]
