M74HC190M1R, M74HC191, M74HC191M1R Selling Leads, Datasheet
MFG:ST Package Cooled:S0P-16 D/C:02+
M74HC190M1R, M74HC191, M74HC191M1R Datasheet download
Part Number: M74HC190M1R
MFG: ST
Package Cooled: S0P-16
D/C: 02+
M74HC190M1R, M74HC191, M74HC191M1R
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Info of M74HC190M1R
Info of M74HC191
Info of M74HC191M1R
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About M74AC574B
PDF/DataSheet Download
Datasheet: M74AC574B
File Size: 83392 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
About M74HC191
PDF/DataSheet Download
Datasheet: M74HC191
File Size: 243551 KB
Manufacturer: ST
Download : Click here to Download
About M74AC574B
PDF/DataSheet Download
Datasheet: M74AC574B
File Size: 83392 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
M74HC191 General Description
TheM54/74HC190/191 are high speedCMOS4-BIT SYNCHRONOUS UP/DOWN COUNTERS fabricated in silicon gate C2MOS technology.
They have the same high speed performance of LSTTL combined with true CMOS low power consumption.
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 ontheDATA inputs into the flip-flops, which makes it possible to use the circuitsasprogrammable counters. Acountenable input serves as the carry/borrow input in multi-stage counters. Control input, Down/Up, determines whether a circuit counts up or down. AMAX/MINoutputand aRippleClock output provide overflow/underflow indication and make possible a variety of methods for generating carry/borrow signals inmultistage counter applications.
All inputs are equipped with protection circuits against static discharge and transient excess voltage.
M74HC191 Maximum Ratings
|
Symbol |
Parameter |
Value |
Unit |
|
VCC |
Supply Voltage |
-0.5 to +7 |
V |
|
VI |
DC Input Voltage |
-0.5 to VCC + 0.5 |
V |
|
VO |
DC Output Voltage |
-0.5 to VCC + 0.5 |
V |
|
IIK |
DC Input Diode Current |
± 20 |
mA |
|
IOK |
DC Output Diode Current |
± 20 |
mA |
|
IO |
DC Output Source Sink Current Per Output Pin |
± 25 |
mA |
|
ICC or IGND |
DC VCC or Ground Current |
± 50 |
mA |
|
PD |
Power Dissipation |
500 (*) |
mW |
|
Tstg |
Storage Temperature |
-65 to +150 |
|
|
TL |
Lead Temperature (10 sec) |
300 |
M74HC191 Connection Diagram
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