TC4520BP/BF/BFN
TOSHIBA CMOS Digital Integrated Circuit
Silicon Monolithic
TC4520BP,TC4520BF,TC4520BFN
TC4520B Dual Binary Up Counter
TC4520B is up counters of 4 bit binary.
Since both of TC4520B contain two independent circuits of
counters with the same functions in one package, counting or
frequency division of two BCD digits or eight binary bits can be
achived with one IC. The counters can be reset to “0” (Q0~Q3 =
“L”) by giving “H” level signal to RESET input regardless of other
inputs.
The counting condition is changed by the rising edge of CLOCK
input if ENABLE = “H” or by the falling edge of ENABLE if
CLOCK = “L”.
Note: xxxFN (JEDEC SOP) is not available in
Japan.
TC4520BP
TC4520BF
Pin Assignment
TC4520BFN
Weight
DIP16-P-300-2.54A
SOP16-P-300-1.27A
SOL16-P-150-1.27
1
: 1.00 g (typ.)
: 0.18 g (typ.)
: 0.13 g (typ.)
2007-10-01
TC4520BP/BF/BFN
Absolute Maximum Ratings (Note)
Characteristics
Symbol
Rating
Unit
DC supply voltage
VDD
VSS − 0.5~VSS + 20
V
Input voltage
VIN
VSS − 0.5~VDD + 0.5
V
VOUT
VSS − 0.5~VDD + 0.5
V
Output voltage
DC input current
IIN
±10
mA
Power dissipation
PD
300 (DIP)/180 (SOIC)
mW
Operating temperature range
Topr
−40~85
°C
Storage temperature range
Tstg
−65~150
°C
Note:
Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or
even destruction.
Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the
significant change in temperature, etc.) may cause this product to decrease in the reliability significantly
even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute
maximum ratings and the operating ranges.
Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook
(“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test
report and estimated failure rate, etc).
Operating Ranges (VSS = 0 V) (Note)
Characteristics
Symbol
Test Condition
Min
Typ.
Max
Unit
DC supply voltage
VDD
⎯
3
⎯
18
V
Input voltage
VIN
⎯
0
⎯
VDD
V
Note:
The operating ranges must be maintained to ensure the normal operation of the device.
Unused inputs must be tied to either VDD or VSS.
3
2007-10-01
