|
Details, datasheet, quote on part number:SN74HC157NSR
| |
Datasheet text preview:
SN54HC157, SN74HC157 QUADRUPLE 2 LINE TO 1 LINE DATA SELECTORS/MULTIPLEXERS
SCLS113D - DECEMBER 1982 - REVISED SEPTEMBER 2003
D Wide Operating Voltage Range of 2 V to 6 V D Outputs Can Drive Up To 15 LSTTL Loads D Low Power Consumption, 80-µA Max ICC
SN54HC157 . . . J OR W PACKAGE SN74HC157 . . . D, DB, N, NS, OR PW PACKAGE (TOP VIEW)
D Typical tpd = 11 ns D ±6-mA Output Drive at 5 V D Low Input Current of 1 µA Max
SN54HC157 . . . FK PACKAGE (TOP VIEW)
NC - No internal connection
description/ordering information
These data selectors/multiplexers contain inverters and drivers to supply full data selection to the four output gates. A separate strobe (G) input is provided. A 4-bit word is selected from one of two sources and is routed to the four outputs. The 'HC157 devices present true data. ORDERING INFORMATION
TA PACKAGE PDIP - N PACKAGE Tube of 25 Tube of 40 SOIC - D -40°C to 85 C 85°C SOP - NS SSOP - DB Reel of 2500 Reel of 250 Reel of 2000 Reel of 2000 Tube of 90 TSSOP - PW CDIP - J -55°C to 125 C 125°C CFP - W Reel of 2000 Reel of 250 Tube of 25 Tube of 150 ORDERABLE PART NUMBER SN74HC157N SN74HC157D SN74HC157DR SN74HC157DT SN74HC157NSR SN74HC157DBR SN74HC157PW SN74HC157PWR SN74HC157PWT SNJ54HC157J SNJ54HC157W SNJ54HC157J SNJ54HC157W HC157 HC157 HC157 HC157 TOP-SIDE MARKING SN74HC157N
LCCC - FK Tube of 55 SNJ54HC157FK SNJ54HC157FK Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
2Y GND NC 3Y 3B
On products compliant to MIL PRF 38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters.
A/B 1A 1B 1Y 2A 2B 2Y GND
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
VCC G 4A 4B 4Y 3A 3B 3Y
1A A/B NC VCC G 1B 1Y NC 2A 2B
4 5 6 7 8 3 2 1 20 19 18 17 16 15 14 9 10 11 12 13
4A 4B NC 4Y 3A
Copyright 2003, Texas Instruments Incorporated
1
SN54HC157, SN74HC157 QUADRUPLE 2 LINE TO 1 LINE DATA SELECTORS/MULTIPLEXERS
SCLS113D - DECEMBER 1982 - REVISED SEPTEMBER 2003
FUNCTION TABLE INPUTS G H L L L L SELECT A/B X L L H H DATA A X L H X X B X X X L H L L H L H OUTPUT Y
logic diagram (positive logic)
1A 2 4 1B 3
1Y
2A
5 7
2B
6
2Y
3A
11 9 3Y
3B
10
4A
14 12 4Y
4B
13
G A/B
15 1
Pin numbers shown are for the D, DB, J, N, NS, PW, and W packages.
2
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN54HC157, SN74HC157 QUADRUPLE 2 LINE TO 1 LINE DATA SELECTORS/MULTIPLEXERS
SCLS113D - DECEMBER 1982 - REVISED SEPTEMBER 2003
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to 7 V Input clamp current, IIK (VI VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Output clamp current, IOK (VO VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±35 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±70 mA Package thermal impedance, JA (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/W DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82°C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64°C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108°C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65°C to 150°C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 3)
SN54HC157 MIN VCC VIH Supply voltage VCC = 2 V VCC = 4.5 V VCC = 6 V VCC = 2 V VIL VI VO t/v Low-level input voltage Input voltage Output voltage VCC = 2 V VCC = 4.5 V VCC = 6 V VCC = 4.5 V VCC = 6 V 0 0 2 1.5 3.15 4.2 0.5 1.35 1.8 VCC VCC 1000 500 400 0 0 NOM 5 MAX 6 SN74HC157 MIN 2 1.5 3.15 4.2 0.5 1.35 1.8 VCC VCC 1000 500 400 ns V V V V NOM 5 MAX 6 UNIT V
High-level input voltage
Input transition rise/fall time
TA Operating free-air temperature -55 125 -40 85 °C NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
3
|
|
