74LS164 SOLIDSTATE | Alldatasheet

Document overview

  • Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
  • PDF pages: 7

Technical content

A B Q0 Q1 Q3Q2 Q5Q4 MR CP DQ CD DQ CD DQ CD DQ CD DQ CD DQ CD DQ CD DQ CD 63 4 5 11 1210 13VCC = PIN 14 GND = PIN 7 = PIN NUMBERS FUNCTIONAL DESCRIPTION The LS164 is an edge-triggered 8-bit shift register with serial data entry and an output from each of the eight stages. Data is entered serially through one of two inputs (A or B); either of these inputs can be used as an active HIGH Enable for data entry through the other input. An unused input must be tied HIGH, or both inputs connected together. Each LOW-to-HIGH transition on the Clock (CP) input shifts data one place to the right and enters into Q 0 the logical AND of the two data inputs (A•B) that existed before the rising clock edge. A LOW level on the Master Reset (MR) input overrides all other inputs and clears the register asynchronously, forcing all Q outputs LOW. MODE SELECT — TRUTH TABLE OPERATING MODE INPUTS OUTPUTS MODE MR A B Q 0 Q 1–Q 7 Reset (Clear) L X X L L – L H I I L q0 –q 6 Shift H I h L q0 –q 6 H h I L q0 –q 6 H h h H q0 –q 6 L (l) = LOW Voltage Levels H (h) = HIGH Voltage Levels X = Don’t Care q n = Lower case letters indicate the state of the referenced input or output one qn = set-up time prior to the LOW to HIGH clock transition. www.sycelectronica.com.ar

DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Parameter Min Typ Max Unit Test Conditions VIH Input HIGH Voltage 2.0 V Guaranteed Input HIGH Voltage for All Inputs VIL Input LOW Voltage 0.8 V Guaranteed Input LOW Voltage for All Inputs VIK Input Clamp Diode Voltage –0.65 –1.5 V VCC = MIN, IIN = –18 mA VOH Output HIGH Voltage 2.7 3.5 V VCC = MIN, IOH = MAX, VIN = VIH or VIL per Truth Table VO Output LOW Voltage 0.25 0.4 V IOL = 4.0 mA VCC = VCC MIN, VIN =V IH or VILVOL O utput LOW Voltage 0.35 0.5 V IOL = 8.0 mA VIN = VIH or VIL per Truth Table I Input HIGH Current 20 µA VCC = MAX, VIN = 2.7 V IIH Input HIGH C urrent 0.1 mA VCC = MAX, VIN = 7.0 V IIL Input LOW Current –0.4 mA VCC = MAX, VIN = 0.4 V IOS Short Circuit Current (Note 1) –20 –100 mA VCC = MAX ICC Power Supply Current 27 mA VCC = MAX Note 1: Not more than one output should be shorted at a time, nor for more than 1 second. AC CHARACTERISTICS (TA = 25°C) Limits Symbol Parameter Min Typ Max Unit Test Conditions fMAX Maximum Clock Frequency 25 36 MHz tPHL Propagation Delay MR to Output Q 24 36 ns VCC = 5.0 V C L = 15 pF tPLH tPHL Propagation Delay Clock to Output Q ns C L 15 F AC SETUP REQUIREMENTS (TA = 25°C) Limits Symbol Parameter Min Typ Max Unit Test Conditions tW CP, MR Pulse Width 20 ns ts Data Setup Time 15 ns VCC =50V th Data Hold Time 5.0 ns VCC = 5.0 V trec MR to Clock Recovery Time 20 ns www.sycelectronica.com.ar

CASE 646–06 ISSUE M 14 8 B A DIM MIN MAX MIN MAX MILLIMETERSINCHES A 0.715 0.770 18.16 18.80 B 0.240 0.260 6.10 6.60 C 0.145 0.185 3.69 4.69 D 0.015 0.021 0.38 0.53 F 0.040 0.070 1.02 1.78 G 0.100 BSC 2.54 BSC H 0.052 0.095 1.32 2.41 J 0.008 0.015 0.20 0.38 K 0.115 0.135 2.92 3.43 L N 0.015 0.039 0.38 1.01 /C0095/C0095 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. F HG D K C SEATING PLANE N –T– 14 PL M0.13 (0.005) L M J 0.290 0.310 7.37 7.87 www.sycelectronica.com.ar

CASE 751A–03 ISSUE F NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. –A– –B– G P 7 PL 14 8 M0.25 (0.010) B M SBM0.25 (0.010) A ST –T– FR X 45 SEATING PLANE D 14 PL K C JM /C0095 DIM MIN MAX MIN MAX INCHESMILLIMETERS A 8.55 8.75 0.337 0.344 B 3.80 4.00 0.150 0.157 C 1.35 1.75 0.054 0.068 D 0.35 0.49 0.014 0.019 F 0.40 1.25 0.016 0.049 G 1.27 BSC 0.050 BSC J 0.19 0.25 0.008 0.009 K 0.10 0.25 0.004 0.009 M 0 7 0 7 P 5.80 6.20 0.228 0.244 R 0.25 0.50 0.010 0.019 /C0095/C0095/C0095/C0095 www.sycelectronica.com.ar