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MC74HCT161A

Features: • Output Drive Capability: 10 LSTTL Loads• TTL, NMOS Compatible Input Levels• Outputs Directly Interface to CMOS, NMOS, and TTL• Operating Voltage Range: 4.5 to 5.5 V• Low Input Current: 1 A• High Noise Immunity Characteristic of CMOS Devices• In...

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MC74HCT161A: Features: • Output Drive Capability: 10 LSTTL Loads• TTL, NMOS Compatible Input Levels• Outputs Directly Interface to CMOS, NMOS, and TTL• Operating Voltage Range: 4.5 to 5.5...

MC74HCT161A Data Sheet

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Part Number:
MC74HCT161A
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5000

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Product Details

Description



Features:

• Output Drive Capability: 10 LSTTL Loads
• TTL, NMOS Compatible Input Levels
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 4.5 to 5.5 V
• Low Input Current: 1 A
• High Noise Immunity Characteristic of CMOS Devices
• In Compliance with the Requirements Defined by JEDEC Standard No. 7A
• Chip Complexity: 200 FETs or 50 Equivalent Gates




Pinout

Connection Diagram


Specifications

Symbol
Parameter
Value
Unit
VCC
 Positive DC Supply Voltage (Referenced to GND)
0.5 to +7.0
V
Vin
 DC Input Voltage (Referenced to GND)
1.5 to VCC + 1.5
V
Vout
 DC Output Voltage (Referenced to GND)
0.5 to VCC + 0.5
V
Iin
 DC Input Current, per Pin
± 20
mA
Iout
 DC Output Current, per Pin
± 25
mA
ICC
 DC Supply Current, VCC and GND Pins
± 50
mA
PD
 Power Dissipation in Still Air, Plastic or Ceramic DIP†
SOIC Package†
750
500
mW
Tstg
 Storage Temperature
65 to + 150
TL
 Lead Temperature, 1 mm from Case for 10 Seconds
(Plastic DIP, SOIC or TSSOP Package)
(Ceramic DIP)
260
300
* Maximum Ratings are those values beyond which damage to the device may occur.Functional operation
  should be restricted to the Recommended Operating Conditions.
  †Derating - Plastic DIP: 10 mW/ from 65° to 125
  Ceramic DIP: 10 mW/ from 100° to 125
  SOIC Package: 7 mW/ from 65° to 125

For high frequency or heavy load considerations, see Chapter 2 of the Motorola HighSpeed CMOS Data Book (DL129/D).

This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this highimpedance circuit. For proper operation, Vin and Vout should be constrained to the range GND (Vin or Vout) VCC.

Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused outputs must be left open.


Description

The MC54/74HCT161A and HCT163A are identical in pinout to the LS161A and LS163A. These devices may be used as level converters for interfacing TTL or NMOS outputs to high speed CMOS inputs.

The HCT161A and HCT163A are programmable 4bit binary counters with asynchronous and synchronous reset, respectively.




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