M74HC190M1R ,4 BIT SYNCHRONOUS UP/DOWN COUNTERSM74HC1904 BIT SYNCHRONOUS UP/DOWN COUNTERS ■ HIGH SPEED : ..
M74HC191M1R ,4 BIT SYNCHRONOUS UP/DOWN COUNTERSM74HC1914 BIT SYNCHRONOUS UP/DOWN COUNTERS ■ HIGH SPEED : ..
M74HC193M1R ,SYNCHRONOUS UP/DOWN DECADE COUNTERM74HC193SYNCHRONOUS UP/DOWN BINARY COUNTER ■ HIGH SPEED : ..
M74HC194M1R ,4 BIT PIPO SHIFT REGISTERfeatures parallel inputs, parallel for this mode is entered at the SHIFT RIGHT dataoutputs, right s ..
M74HC20B1R ,DUAL 4-INPUT NAND GATEABSOLUTE MAXIMUM RATINGS Symbol Parameter Value UnitV Supply Voltage-0.5 to +7 VCCV DC Input V ..
M74HC20B1R ,DUAL 4-INPUT NAND GATEAbsolute Maximum Ratings are those values beyond which damage to the device may occur. Functional o ..
MAX133CQH ,3 Digit DMM CircuitELECTRICAL CHARACTERISTICS
(V+ : 9V, TA = +25°C, Test Circuit unless otherwise indicated)
_PA ..
MAX133CQH ,3 Digit DMM CircuitGeneral Description
The MAX133 and MAX134 are integrating A/D con-
verters for 3% digit multime ..
MAX133CQH ,3 Digit DMM CircuitELECTRICAL CHARACTERISTICS
(V+ : 9V, TA = +25°C, Test Circuit unless otherwise indicated)
_PA ..
MAX133CQH+ ,3 Digit DMM CircuitELECTRICAL CHARACTERISTICS
(V+ : 9V, TA = +25°C, Test Circuit unless otherwise indicated)
_PA ..
MAX133EPL+ ,3¾ Digit DMM CircuitGeneral Description
The MAX133 and MAX134 are integrating A/D con-
verters for 3% digit multime ..
MAX133EQH+D ,3¾ Digit DMM CircuitGeneral Description
The MAX133 and MAX134 are integrating A/D con-
verters for 3% digit multime ..
M74HC190M1R
4 BIT SYNCHRONOUS UP/DOWN COUNTERS
1/14August 2001 HIGH SPEED :
fMAX = 44 MHz (TYP.) at VCC = 6V LOW POWER DISSIPATION:CC =4μA(MAX.) at TA =25°C HIGH NOISE IMMUNITY:NIH = VNIL = 28 % VCC (MIN.) SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN) BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL WIDE OPERATING VOLTAGE RANGE:CC (OPR) = 2V to 6V PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 190
DESCRIPTIONThe M74HC190 is an high speed CMOS 4-BIT
SYNCHRONOUS UP/DOWN COUNTER
fabricated with silicon gate C2 MOS technology.
State changes of the counter are synchronous
with the LOW-to-HIGH transition of the Clock
Pulse Input.
An asynchronous parallel load input overrides
counting and loads the data present on the DATA
inputs into the flip-flops, which makes it possible to
use the circuits as programmable counters. A
count enable input serves as the carry/borrow
input in multi-stage counters. Control input, Down/
Up, determines whether a circuit counts up or
down. A MAX/MIN output and a Ripple Clock
output provide overflow/underflow indication and
make possible a variety of methods for generating
carry/borrow signals in multi-stage counter
applications.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
M74HC1904 BIT SYNCHRONOUS UP/DOWN COUNTERS
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
M74HC1902/14
INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
TRUTH TABLE X : Don’t Care
a - d : The level of steady state inputs a through d respectively
M74HC1903/14
LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays
M74HC1904/14
TIMING CHART
ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
(*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C
M74HC1905/14
RECOMMENDED OPERATING CONDITIONS
DC SPECIFICATIONS
M74HC1906/14
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
M74HC1907/14
CAPACITIVE CHARACTERISTICS 1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC
TEST CIRCUIT CL = 50pF or equivalent (includes jig and probe capacitance)
RT = ZOUT of pulse generator (typically 50Ω)
