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Part Number: M74HC85
Description: The M74HC85 is an high speed CMOS 4-BIT MAGNITUDE COMPARATOR fabricated with silicon gate C2
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M74HC85
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General Description
M74HC85 General Description
The M74HC85 is an high speed CMOS 4-BIT MAGNITUDE COMPARATOR fabricated with silicon gate C2MOS technology.
This comparator compares two 4-bit words and provides an high voltage level on one of the A>B out, A=B out and A<B out outputs. The comparing bit number is easily expanded by cascading several devices as shown in the typical application.
All inputs are equipped with protection circuits against static discharge and transient excess voltage.
M74HC85 Maximum Ratings
| Symbol | Parameter | Value | Unit |
| VCC | Supply Voltage | -0.5 to +7 | V |
| VI | DC Input Voltage | -0.5 to VCC + 0.5 | V |
| VO | DC Output Voltage | -0.5 to VCC + 0.5 | V |
| IIK | DC Input Diode Current | ± 20 | mA |
| IOK | DC Output Diode Current | ± 20 | mA |
| IO | DC Output Current | ± 25 | mA |
| ICC or IGND | DC VCC or Ground Current | ± 50 | mA |
| PD | Power Dissipation | 500(*) | mW |
| Tstg | Storage Temperature | -65 to +150 | °C |
| TL | Lead Temperature (10 sec) | 300 | °C |
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied
(*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C
M74HC85 Features
`HIGH SPEED
tPD = 20 ns (TYP.) AT VCC = 6 V
` LOWPOWER DISSIPATION
ICC = 4 mA (MAX.) at TA = 25 °C
`HIGH NOISE IMMUNITY
VNIH = VNIL = 28 % VCC (MIN.)
`OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
`SYMMETRICAL OUTPUT IMPEDANCE
|IOH| = IOL = 4 mA (MIN.)
`BALANCEDPROPAGATION DELAYS
tPLH tPHL
` WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V to 6 V
`PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 85
tPD = 20 ns (TYP.) AT VCC = 6 V
` LOWPOWER DISSIPATION
ICC = 4 mA (MAX.) at TA = 25 °C
`HIGH NOISE IMMUNITY
VNIH = VNIL = 28 % VCC (MIN.)
`OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
`SYMMETRICAL OUTPUT IMPEDANCE
|IOH| = IOL = 4 mA (MIN.)
`BALANCEDPROPAGATION DELAYS
tPLH tPHL
` WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V to 6 V
`PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 85
M74HC85 Connection Diagram
M74HC85
PDF/DataSheet Download
- Datasheet: M74HC85
- File Size: 258193 KB
- Manufacturer: STMicro
- Click here to Download
- ·M74AC574B
- STMICROELECTRONICS [STMicroelectronics]
- OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT NON INVERTING
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- ·M74AC574M
- STMICROELECTRONICS [STMicroelectronics]
- OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT NON INVERTING
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- ·M74AC574MTR
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- ·M74AC574TTR
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- ·M74ACT02B
- STMICROELECTRONICS [STMicroelectronics]
- QUAD 2-INPUT NOR GATE
- 194600 KB
- ·M74ACT02M
- STMICROELECTRONICS [STMicroelectronics]
- QUAD 2-INPUT NOR GATE
- 194600 KB
- ·M74ACT02MTR
- STMICROELECTRONICS [STMicroelectronics]
- QUAD 2-INPUT NOR GATE
- 194600 KB
- ·M74ACT02TTR
- STMICROELECTRONICS [STMicroelectronics]
- QUAD 2-INPUT NOR GATE
- 194600 KB
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