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PDF TC74ACT161P Data sheet ( Hoja de datos )
| Número de pieza | TC74ACT161P | |
| Descripción | Synchronous Presettable 4-Bit Binary Counter | |
| Fabricantes | Toshiba Semiconductor | |
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TC74ACT161,163P/F/FN
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74ACT161P,TC74ACT161F,TC74ACT161FN
TC74ACT163P,TC74ACT163F,TC74ACT163FN
Synchronous Presettable 4-Bit Binary Counter
TC74ACT161P/F/FN Asynchronous Clear
TC74ACT163P/F/FN Synchronous Clear
Note: xxxFN (JEDEC SOP) is not available in
Japan.
TC74ACT161P, TC74ACT163P
The TC74ACT161 and T163 are advanced high speed CMOS
SYNCHRONOUS PRESETTABLE 4 BIT BINARY COUNTERs
fabricated with silicon gate and double-layer metal wiring
C2MOS technology.
They achieve the high speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low power
dissipation.
These devices may be used as a level converter for interfacing
TTL or NMOS to High Speed CMOS. The inputs are compatible
with TTL, NMOS and CMOS output voltage levels.
The CK input is active on the rising edge. Both LOAD and
CLR inputs are active on low logic level.
Presetting of these IC’s is synchronous to the rising edge of CK.
The clear function of the TC74ACT163 is synchronous to CK,
while the TC74ACT161 are cleared asynchronously.
Two enable inputs (ENP and ENT) and CARRY OUTPUT are
provided to enable easy cascading of counters, which facilitates
easy implementation of n-bit counters without using external
gates.
All inputs are equipped with protection circuits against static
discharge or transient excess voltage.
Features
• High speed: fmax = 110 MHz (typ.) at VCC = 5 V
• Low power dissipation: ICC = 8 μA (max) at Ta = 25°C
• Compatible with TTL outputs: VIL = 0.8 V (max)
VIH = 2.0 V (min)
• Symmetrical output impedance: |IOH| = IOL = 24 mA (min)
Capability of driving 50 Ω
transmission lines.
• Balanced propagation delays: tpLH ∼− tpHL
• Pin and function compatible with 74F161/163
TC74ACT161F, TC74ACT163F
TC74ACT161FN, TC74ACT163FN
Weight
DIP16-P-300-2.54A
SOP16-P-300-1.27A
SOL16-P-150-1.27
: 1.00 g (typ.)
: 0.18 g (typ.)
: 0.13 g (typ.)
1 2007-10-01
1 page  
Absolute Maximum Ratings (Note 1)
TC74ACT161,163P/F/FN
Characteristics
Symbol
Rating
Unit
Supply voltage range
DC input voltage
DC output voltage
Input diode current
Output diode current
DC output current
DC VCC/ground current
Power dissipation
Storage temperature
VCC
VIN
VOUT
IIK
IOK
IOUT
ICC
PD
Tstg
−0.5 to 7.0
−0.5 to VCC + 0.5
−0.5 to VCC + 0.5
±20
±50
±50
±125
500 (DIP) (Note 2)/180 (SOP)
−65 to 150
V
V
V
mA
mA
mA
mA
mW
°C
Note 1:
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).
Note 2: 500 mW in the range of Ta = −40 to 65°C. From Ta = 65 to 85°C a derating factor of −10 mW/°C should be
applied up to300 mW.
Operating Ranges (Note)
Characteristics
Symbol
Rating
Unit
Supply voltage
Input voltage
Output voltage
Operating temperature
Input rise and fall time
VCC
VIN
VOUT
Topr
dt/dV
4.5 to 5.5
0 to VCC
0 to VCC
−40 to 85
0 to 10
V
V
V
°C
ns/V
Note: The operating ranges must be maintained to ensure the normal operation of the device.
Unused inputs must be tied to either VCC or GND.
5 2007-10-01
5 Page 
Package Dimensions
TC74ACT161,163P/F/FN
Weight: 0.18 g (typ.)
11 2007-10-01
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet TC74ACT161P.PDF ] | |
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