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Part: CD74HCT4351
Category:
Communication
-> Network
-> Switches
-> Switches/Multiplexers
Description: High Speed CMOS Logic Analog Multiplexers/demultiplexers With Latch
Company: Texas Instruments, Inc.
Datasheet: Download CD74HCT4351 datasheet File size : 173 kB
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Datasheet text preview:
CD54/74HC4351, CD74HCT4351, CD74HC4352
Data sheet acquired from Harris Semiconductor SCHS213A
September 1998 - Revised May 2000
High Speed CMOS Logic Analog Multiplexers/Demultiplexers with Latch
LSTTL with the low power consumption of standard CMOS integrated circuits. These analog multiplexers/demultiplexers are, in essence, the HC/HCT4015 and HC4052 preceded by address latches that are controlled by an active low Latch Enable input (LE). Two Enable inputs, one active low (E1), and the other active high (E2) are provided allowing enabling with either input voltage level.
Features
· Wide Analog Input Voltage Range . . . . . . . . . ±5V (Max)
[ /Title (CD74 HC435 1, CD74 HCT43 51, CD74 HC435 2) /Subject High peed MOS ogic naog ultilexrs/De ultilexrs ith atch) /Autho () /Keyords High peed MOS ogic
· Low "On" Resistance - VCC - VEE = 4.5V. . . . . . . . . . . . . . . . . . . . . . 70 (Typ) - VCC - VEE = 9V . . . . . . . . . . . . . . . . . . . . . . . 40 (Typ) · Low Crosstalk Between Switches · Fast Switching and Propagation Speeds · "Break-Before-Make" Switching · Wide Operating Temperature Range . . . -55oC to 125oC · HC Types - 2V to 6V Operation, Control; 0V to 10V Switch - High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V · HCT Types - 4.5V to 5.5V Operation, Control; 0V to 10V Switch - Direct LSTTL Input Logic Compatibility, VIL= 0.8V (Max), VIH = 2V (Min) - CMOS Input Compatibility, Il 1µA at VOL, VOH
Ordering Information
PART NUMBER CD54HC4351F3A CD74HC4351E CD74HC4351M CD74HCT4351E CD74HC4352E NOTES: 1. When ordering, use the entire par t number. Add the suffix 96 to obtain the variant in the tape and reel. 2. Wafer and die for this part number is available which meets all electrical specifications. Please contact your local TI sales office or customer service for ordering information. TEMP. RANGE (oC) -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 PACKAGE 20 Ld CERDIP 20 Ld PDIP 20 Ld SOIC 20 Ld PDIP 20 Ld PDIP
Description
The 'HC4351, CD74HCT4351, and CD74HC4352 are digitally controlled analog switches which utilize silicon-gate CMOS technology to achieve operating speeds similar to
Pinouts
CD54HC4351 (CERDIP) CD74HC4351, CD74HCT4351 (PDIP, SOIC) TOP VIEW
A4 A6 NC A COMMON A7 A5 E1 E2 VEE 1 2 3 4 5 6 7 8 9 20 VCC 19 A2 18 A1 17 A0 16 A3 15 S0 14 NC 13 S1 12 S2 11 LE
CD74HC4352 (PDIP) TOP VIEW
B0 B2 NC B COMMON B3 B1 E1 E2 VEE 1 2 3 4 5 6 7 8 9 20 VCC 19 A2 18 A1 17 A COMMON 16 A0 15 A3 14 NC 13 S0 12 S1 11 LE
GND 10
GND 10
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. Copyright
© 2000, Texas Instruments Incorporated
1
CD54/74HC4351, CD74HCT4351, CD74HC4352 Functional Diagram
'HC4351, CD74HCT4351
V CC 20 A7 5 A6 2 CHANNEL IN/OUT A5 6 A4 1 A3 16 A2 19 A1 18 A0 17 TG S0 15 TG
S1
13
LATCHES
TG
TG S2 12 LOGIC LEVEL CONVERSION LE 11 BINARY TO 1 OF 8 DECODER WITH ENABLE 4 TG A COMMON OUT/IN
TG
E1
7
TG
TG E2 8
10 GND
9 V EE
TRUTH TABLE 'HC4351, CD74HCT4351 INPUT STATES (NOTE 3) "ON" SWITCHES LE = H A0 A1 A2 A3 A4 A5 A6 A7 None FIGURE 1. DETAIL OF ONE HC/HCT4351 SWITCH
V EE N V CC An IN/OUT FROM SELECT LOGIC P N N P V CC A COMMON IN/OUT
E1 L L L L L L L L H NOTE:
E2 H H H H H H H H L
S2 L L L L H H H H X
S1 L L H H L L H H X
S0 L H L H L H L H X
N
3. When LE is low S0-S2 data are latched and switches cannot change state. H = High Voltage Level, L = Low Voltage Level, X = Don't Care
2
CD54/74HC4351, CD74HCT4351, CD74HC4352 Functional Diagram
CD74HC4352
A CHANNELS IN/OUT A3 V CC 20 TG S0 13 S0 S0 LATCHES S1 12 S1 S1 TG TG 15 A2 19 A1 18 A0 16
LE
11
LOGIC LEVEL CONVERSION
BINARY TO 1 OF 4 DECODER WITH ENABLE
TG
17
A COMMON OUT/IN
TG
4
B COMMON OUT/IN
TG
E1 E2
7 8
TG
TG 5 10 GND 9 V EE B0 2 B1 6 B2 1 B3
B CHANNELS IN/OUT
TRUTH TABLE CD74HC4352 INPUT STATES (NOTE 4) "ON" SWITCHES LE = H A0, B0 A1, B1 A2, B2 A3, B3 None
N FROM SELECT LOGIC P V CC
An (Bn) IN/OUT
E1 L L L L H NOTE:
E2 H H H H L
S1 L L H H X
S0 L H L H X
P N N V CC A COMMON (B COMMON) IN/OUT
N
V EE
4. When Latch Enable is "Low" channel-select data is latched and switches cannot change state. H = High Voltage Level, L = Low Voltage Level, X = Don't Care
FIGURE 2. DETAIL OF ONE CD74HC4352 SWITCH
3
CD54/74HC4351, CD74HCT4351, CD74HC4352
Absolute Maximum Ratings
DC Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 7V DC Supply Voltage, VCC - VEE . . . . . . . . . . . . . . . . . . -0.5V to 10.5V DC Supply Voltage, VEE . . . . . . . . . . . . . . . . . . . . . . . . 0.5V to -7V DC Input Diode Current, IIK For VI VCC 0.5V. . . . . . . . . . . . . . . . . . . . . . . .±20mA DC Switch Diode Current, IOK For VI VEE -0.5V or VI VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±20mA DC Output Source or Sink Current per Output Pin, IO For VO > -0.5V or VO < VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±25mA DC VCC or Ground Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . .±50mA
Thermal Information
Thermal Resistance (Typical, Note 6) JA (oC/W) PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150oC Maximum Storage Temperature Range . . . . . . . . . .-65oC to 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300oC (SOIC - Lead Tips Only)
Operating Conditions
Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC Supply Voltage Range, VCC HC Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2V to 6V HCT Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 5.5V Supply Voltage Range, VCC - VEE HC, HCT Types (Figure 3) . . . . . . . . . . . . . . . . . . . . . . .2V to 10V Supply Voltage Range, VEE HC, HCT Types (Figure 4) . . . . . . . . . . . . . . . . . . . . . . . 0V to -6V DC Input or Output Voltage, VI . . . . . . . . . . . . . . . . . . . GND to VCC Analog Switch I/O Voltage, VIS . . . . . . . . . . . . . . . . . . . . . VEE (Min) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC (Max) Input Rise and Fall Time, tr, tf 2V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000ns (Max) 4.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500ns (Max) 6V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400ns (Max)
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES: 5. In certain applications, the external load-resistor current may include both VCC and signal-line components. To avoid drawing VCC current when switch current flows into the transmission gate inputs, the voltage drop across the bidirectional switch must not exceed 0.6V (calculated from RON values shown in the DC Electrical Specifications table). No VCC current will flow through RL if the switch current flows into terminal 3 on the 'HC4351 and CD74HCT4351; terminals 3 and 13 on the CD74HC4352. 6. JA is measured with the component mounted on an evaluation PC board in free air.
Recommended Operating Area as a Function of Supply Voltage
8 6 VCC - GND (V) 4 2 0 0 2 6 8 10 12 VCC - VEE (V) 4 HCT HC
8 6 VCC - GND (V) 4 2 0 0 -2 -4 -6 -8 VEE - GND (V) HCT HC
FIGURE 3.
FIGURE 4.
4
CD54/74HC4351, CD74HCT4351, CD74HC4352
DC Electrical Specifications
TEST CONDITIONS PARAMETER HC TYPES High Level Input Voltage VIH 2 4.5 6 Low Level Input Voltage VIL 2 4.5 6 "ON" Resistance IO = 1mA Figure 9 RON VIH or VIL VCC or VEE 0 0 -4.5 VCC to VEE 0 0 -4.5 Maximum "ON" Resistance Between Any Two Channels RON 0 0 -4.5 Switch On/Off Leakage Current 4 Channels (4352) Switch On/Off Leakage Current 8 Channels (4351) IIZ VIH or VIL For Switch OFF: When VIS = VCC VOS = VEE; When VIS = VEE, VOS = VCC For Switch ON: All Applicable Combinations of VIS and VOS Voltage Levels When VIS = VEE, VOS = VCC, When VIS = VCC, VOS = VEE 0 -5 0 -5 4.5 6 4.5 4.5 6 4.5 4.5 6 4.5 6 5 6 5 1.5 3.15 4.2 70 60 40 90 80 45 10 8.5 5 0.5 1.35 1.8 160 140 120 180 160 130 ±0.1 ±0.2 ±0.2 ±0.4 1.5 3.15 4.2 0.5 1.35 1.8 200 175 150 225 200 162 ±1 ±2 ±2 ±4 1.5 3.15 4.2 0.5 1.35 1.8 240 210 180 270 240 195 ±1 ±2 ±2 ±4 V V V V V V µA µA µA µA SYMBOL VI (V) VIS (V) VEE (V) VCC (V) MIN 25oC TYP MAX -40oC TO 85oC MIN MAX -55oC TO 125oC MIN MAX UNITS
Control Input Leakage Current Quiescent Device Current IO = 0
IIL ICC
VCC or GND VCC or GND
0 0 -5
6 6 5
-
-
±0.1 8 16
-
±1 80 160
-
±1 160 320
µA µA µA
5
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