hd74ls191 Renesas Electronics Corporation., hd74ls191 Datasheet
hd74ls191
Related parts for hd74ls191
hd74ls191 Summary of contents
Page 1
... Features Ordering Information Part Name Package Type HD74LS191P DILP-16 pin HD74LS191FPEL SOP-16 pin (JEITA) Note: Please consult the sales office for the above package availability. Rev.2.00, Feb.18.2005, page Package Code Package (Previous Code) ...
Page 2
... HD74LS191 Pin Arrangement Data B Input Outputs Enable G Inputs Down/Up Outputs GND Rev.2.00, Feb.18.2005, page Ripple G 4 Clock Max/ 5 Dn/Up Min Load (Top view Data A Inputs ...
Page 3
... HD74LS191 Block Diagram Clock Down/Up Data Input A Enable G Data Input B Data Input C Data Input D Load Absolute Maximum Ratings Item Supply voltage Input voltage Power dissipation Storage temperature Note: Voltage value, unless otherwise noted, are with respect to network ground terminal. Rev.2.00, Feb.18.2005, page ...
Page 4
... HD74LS191 Recommended Operating Conditions Item Supply voltage Output current Operating temperature Clock frequency Clock pulse width Load pulse width Setup time Hold time Enable time Electrical Characteristics Item Symbol V IH Input voltage Output voltage V OL Enable I IH Others Enable ...
Page 5
... HD74LS191 Switching Characteristics Item Symbol Maximum clock max frequency t PLH t PHL t Data A, PLH t PHL t PLH t PHL t PLH t Propagation PHL delay time t PLH t PHL t PLH t PHL t PLH t PHL t PLH t PHL Rev.2.00, Feb.18.2005, page Inputs Outputs min. Clock ...
Page 6
... HD74LS191 Count Sequences Load Clock Down/Up Enable Max/Min Ripple Clock 13 Load Illustrated below is the following sequence: 1. Load (preset) to binary thirteen. 2. Count up to fourteen, fifteen (maximum), zero, one and two. 3. Inhibit 4. Count down to one, zero (minimum), fifteen, fourteen, and thirteen. ...
Page 7
... HD74LS191 Testing Method Test Circuit 4.5V Input P. 50Ω out Notes includes probe and jig capacitance. 2. All diodes are 1S2074(H). Waveforms 1 t TLH Data Input 10% Load Input Output Note: Input pulse ns, PRR = 1 MHz, duty cycle TLH THL Rev.2.00, Feb.18.2005, page ...
Page 8
... HD74LS191 Waveforms 2 Load Q, Data Q Load Data ( Output Q Note: Conditions on other inputs are irrelevant. Waveforms 3 G Ripple CK, CK Ripple CK, Down / Up Ripple CK, Down / Up Max / Min Load Down/Up Clock G Ripple/Clock Max/Min Rev.2.00, Feb.18.2005, page 1.3V 1.3V 1.3V 1.3V 1. PLH PHL PLH 1.3V 1. PHL PLH 1 ...
Page 9
... HD74LS191 Waveforms 4 Clock Q Load Data ( Down/Up Clock Q Enable = 0V Waveforms 5 Clock Max / Min Load A Inputs Down/Up Clock Max/Min Enable = 0V Rev.2.00, Feb.18.2005, page 1.3V 1.3V t PLH 1.3V 1.3V 1.3V 1. PLH PHL PLH 1. 1. PHL ...
Page 10
... HD74LS191 Package Dimensions JEITA Package Code RENESAS Code P-DIP16-6.3x19.2-2.54 PRDP0016AE 0. JEITA Package Code RENESAS Code P-SOP16-5.5x10.06-1.27 PRSP0016DH Index mark Rev.2.00, Feb.18.2005, page Previous Code MASS[Typ.] DP-16FV 1.05g Previous Code MASS[Typ ...
Page 11
Keep safety first in your circuit designs! 1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead ...