MC74HC4851A (4) VIEW

Semiconductor Components Industries, LLC, 2000

March, 2000 – Rev. 4

Publication Order Number:

MC74HC4851A/D

MC74HC4851A,

MC74HC4852A

Analog Multiplexers/

Demultiplexers with

Injection Current Effect

Control

Automotive Customized

These devices are pin compatible to standard HC405x and

MC1405xB analog mux/demux devices, but feature injection current

effect control. This makes them especially suited for usage in

automotive applications where voltages in excess of normal logic

voltage are common.

The injection current effect control allows signals at disabled analog

input channels to exceed the supply voltage range without affecting

the signal of the enabled analog channel. This eliminates the need for

external diode/ resistor networks typically used to keep the analog

channel signals within the supply voltage range.

The devices utilize low power silicon gate CMOS technology. The

Channel Select and Enable inputs are compatible with standard CMOS

outputs.

•

Injection Current Cross–Coupling Less than 1mV/mA (See Figure 9)

•

Pin Compatible to HC405X and MC1405XB Devices

•

Power Supply Range (VCC – GND) = 2.0 to 6.0 V

•

In Compliance With the Requirements of JEDEC Standard No. 7A

•

Chip Complexity: 154 FETs or 36 Equivalent Gates

http://onsemi.com

MARKING

DIAGRAMS

PDIP–16

N SUFFIX

CASE 648

HC485xAN

AWLYYWW

SOIC–16

D SUFFIX

CASE 751B

TSSOP–16

DT SUFFIX

CASE 948F

HC485xAD

AWLYWW

HC48

5xA

ALYW

= Assembly Location

WL or L

= Wafer Lot

YY or Y

= Year

WW or W = Work Week

SOIC–16 WIDE

DW SUFFIX

CASE 751G

HC485xADW

AWLYWW

See detailed ordering and shipping information in the package

dimensions section on page 10 of this data sheet.

ORDERING INFORMATION

MC74HC4851A, MC74HC4852A

http://onsemi.com

Figure 1. MC74HC4851A Logic Diagram

Single–Pole, 8–Position Plus Common Off

ENABLE

MULTIPLEXER/

DEMULTIPLEXER

ANALOG

INPUTS/

CHANNEL

INPUTS

PIN 16 = VCC

PIN 8 = GND

COMMON

OUTPUT/

INPUT

VCC

Enable

GND

Figure 2. MC74HC4851A 16–Lead Pinout (Top View)

OUTPUTS

SELECT

FUNCTION TABLE – MC74HC4851A

Control Inputs

ON Channels

Enable

Select

NONE

Figure 3. MC74HC4852A Logic Diagram

Double–Pole, 4–Position Plus Common Off

ENABLE

X SWITCH

Y SWITCH

ANALOG

INPUTS/OUTPUTS

CHANNEL-SELECT

INPUTS

PIN 16 = VCC

PIN 8 = GND

COMMON

OUTPUTS/INPUTS

FUNCTION TABLE – MC74HC4852A

Control Inputs

ON Channels

Enable

Select

X = Don’t Care

Figure 4. MC74HC4852A 16–Lead Pinout (Top View)

VCC

Enable

GND

NONE

MC74HC4851A, MC74HC4852A

http://onsemi.com

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

MAXIMUM RATINGS*

ÎÎÎÎ

Symbol

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

Parameter

ÎÎÎÎÎ

Value

ÎÎÎ

Unit

ÎÎÎÎ

VCC

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

Positive DC Supply Voltage

(Referenced to GND)

ÎÎÎÎÎ

– 0.5 to + 7.0

ÎÎÎ

ÎÎÎÎ

Vin

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

DC Input Voltage (Any Pin)

(Referenced to GND)

ÎÎÎÎÎ

– 0.5 to VCC + 0.5

ÎÎÎ

ÎÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

DC Current, Into or Out of Any Pin

ÎÎÎÎÎ

ÎÎÎ

ÎÎÎÎ

ÎÎ

ÎÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

Power Dissipation in Still Air,

Plastic DIP†

SOIC Package†

TSSOP Package†

ÎÎÎÎÎ

ÎÎÎ

ÎÎÎÎÎ

750

500

450

ÎÎÎ

ÎÎÎÎ

Tstg

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

Storage Temperature Range

ÎÎÎÎÎ

– 65 to + 150

ÎÎÎ

ÎÎÎÎ

ÎÎ

ÎÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

Lead Temperature, 1 mm from Case for 10 Seconds

Plastic DIP, SOIC or TSSOP Package

ÎÎÎÎÎ

ÎÎÎ

ÎÎÎÎÎ

260

ÎÎÎ

*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/

C from 65

to 125

SOIC Package: – 7 mW/

C from 65

to 125

TSSOP Package: – 6.1 mW/

C from 65

to 125

For high frequency or heavy load considerations, see Chapter 2 of the ON Semiconductor High–Speed CMOS Data Book (DL129/D).

RECOMMENDED OPERATING CONDITIONS

ÎÎÎÎ

Symbol

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

Parameter

ÎÎÎ

Min

ÎÎ

Max

ÎÎÎ

Unit

ÎÎÎÎ

VCC

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

Positive DC Supply Voltage

(Referenced to GND)

ÎÎÎ

2.0

ÎÎ

6.0

ÎÎÎ

ÎÎÎÎ

Vin

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

DC Input Voltage (Any Pin)

(Referenced to GND)

ÎÎÎ

GND

ÎÎ

VCC

ÎÎÎ

ÎÎÎÎ

VIO*

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

Static or Dynamic Voltage Across Switch

ÎÎÎ

0.0

ÎÎ

1.2

ÎÎÎ

ÎÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

Operating Temperature Range, All Package Types

ÎÎÎ

– 55

ÎÎ

+ 125

ÎÎÎ

ÎÎÎÎ

ÎÎ

ÎÎÎÎ

tr, tf

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ

Input Rise/Fall Time

VCC = 2.0 V

(Channel Select or Enable Inputs)

VCC = 4.5 V

VCC = 6.0 V

ÎÎÎ

ÎÎ

1000

500

400

ÎÎÎ

*For voltage drops across switch greater than 1.2V (switch on), excessive VCC current may be

drawn; i.e., the current out of the switch may contain both VCC and switch input components.

The reliability of the device will be unaffected unless the Maximum Ratings are exceeded.

DC CHARACTERISTICS — Digital Section

(Voltages Referenced to GND) VEE = GND, Except Where Noted

VCC

Guaranteed Limit

Symbol

Parameter

Condition

VCC

–55 to 25

≤

125

Unit

VIH

Minimum High–Level Input

Voltage, Channel–Select or Enable

Inputs

Ron = Per Spec

2.0

3.0

4.5

6.0

1.50

2.10

3.15

4.20

1.50

2.10

3.15

4.20

1.50

2.10

3.15

4.20

VIL

Maximum Low–Level Input

Voltage, Channel–Select or Enable

Inputs

Ron = Per Spec

2.0

3.0

4.5

6.0

0.50

0.90

1.35

1.80

0.50

0.90

1.35

1.80

0.50

0.90

1.35

1.80

Iin

Maximum Input Leakage Current

on Digital Pins (Enable/A/B/C)

Vin = VCC or GND

6.0

0.1

1.0

ICC

Maximum Quiescent Supply

Current (per Package)

Vin(digital) = VCC or GND

Vin(analog) = GND

6.0

NOTE: Information on typical parametric values can be found in Chapter 2 of the ON Semiconductor High–Speed 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 high–impedance cir-

cuit. 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.

MC74HC4851A, MC74HC4852A

http://onsemi.com

DC CHARACTERISTICS — Analog Section

Guaranteed Limit

Symbol

Parameter

Condition

VCC

–55 to 25

≤

125

Unit

Ron

Maximum “ON” Resistance

Vin = VIL or VIH;VIS = VCC to

GND; IS

≤

2.0 mA

2.0

3.0

4.5

6.0

1700

1100

550

400

1750

1200

650

500

1800

1300

750

600

Ω

∆

Ron

Delta “ON” Resistance

Vin = VIL or VIH; VIS = VCC/2

≤

2.0 mA

2.0

3.0

4.5

6.0

300

160

400

200

100

500

240

120

100

Ω

Ioff

Maximum Off–Channel Leakage

Current,

Any One Channel

Common Channel

Vin = VCC or GND

6.0

0.1

0.2

0.5

2.0

1.0

4.0

Ion

Maximum On–Channel Leakage

Channel–to–Channel

Vin = VCC or GND

6.0

0.2

2.0

4.0

AC CHARACTERISTICS

(CL = 50 pF, Input tr = tf = 6 ns)

Symbol

Parameter

VCC

–55 to 25

≤

125

Unit

tPHL,

tPLH

Maximum Propagation Delay, Analog Input to Analog Output

2.0

3.0

4.5

6.0

160

180

200

100

tPHL, tPHZ,PZH

tPLH, tPLZ,PZL

Maximum Propagation Delay, Enable or Channel–Select to

Analog Output

2.0

3.0

4.5

6.0

260

160

280

180

300

200

100

Cin

Maximum Input Capacitance

Digital Pins

(All Switches Off)

Any Single Analog Pin

(All Switches Off)

Common Analog Pin

130

CPD

Power Dissipation Capacitance

Typical

5.0

INJECTION CURRENT COUPLING SPECIFICATIONS

(VCC = 5V, TA = –55

C to +125

Symbol

Parameter

Typ

Max

Unit

Condition

∆

out

Maximum Shift of Output Voltage of Enabled Analog

Channel

0.1

1.0

0.5

5.0

1.0

5.0

2.0

Iin*

≤

1mA, RS

≤

3,9k

Ω

Iin*

≤

10mA, RS

≤

3,9k

Ω

Iin*

≤

1mA, RS

≤

20k

Ω

Iin*

≤

10mA, RS

≤

20k

Ω

* Iin = Total current injected into all disabled channels.

MC74HC4851A, MC74HC4852A

http://onsemi.com

Figure 5. Typical On Resistance VCC = 2V

Figure 6. Typical On Resistance VCC = 3V

Figure 7. Typical On Resistance VCC = 4.5V

Figure 8. Typical On Resistance VCC = 6V

Vin, INPUT VOLTAGE (VOLTS), REFERENCED TO GND

, ON RESIST

ANCE

(OHMS)

–55

+25

+125

Vin, INPUT VOLTAGE (VOLTS), REFERENCED TO GND

, ON RESIST

ANCE

(OHMS)

–55

+25

+125

Vin, INPUT VOLTAGE (VOLTS), REFERENCED TO GND

, ON RESIST

ANCE

(OHMS)

–55

+25

+125

Vin, INPUT VOLTAGE (VOLTS), REFERENCED TO GND

, ON RESIST

ANCE

(OHMS)

–55

+25

+125

1100

1000

900

800

700

600

500

400

300

200

100

1100

1000

900

800

700

600

500

400

300

200

100

660

600

540

480

420

360

300

240

180

120

440

400

360

320

280

240

200

160

120

0.0

0.9

1.8

2.7

3.6

4.5

0.0

1.2

2.4

3.6

4.8

6.0

0.0

0.4

0.8

1.2

1.6

2.0

0.0

0.6

1.2

1.8

2.4

3.0