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HEF40193B PDF даташит

Спецификация HEF40193B изготовлена ​​​​«NXP Semiconductors» и имеет функцию, называемую «4-bit up/down binary counter».

Детали детали

Номер произв HEF40193B
Описание 4-bit up/down binary counter
Производители NXP Semiconductors
логотип NXP Semiconductors логотип 

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HEF40193B Даташит, Описание, Даташиты
INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
The IC04 LOCMOS HE4000B Logic
Family Specifications HEF, HEC
The IC04 LOCMOS HE4000B Logic
Package Outlines/Information HEF, HEC
HEF40193B
MSI
4-bit up/down binary counter
Product specification
File under Integrated Circuits, IC04
January 1995









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HEF40193B Даташит, Описание, Даташиты
Philips Semiconductors
4-bit up/down binary counter
Product specification
HEF40193B
MSI
DESCRIPTION
The HEF40193B is a 4-bit synchronous up/down
binary counter. The counter has a count-up clock input
(CPU), a count-down clock input (CPD), an asynchronous
parallel load input (PL), four parallel data inputs (P0 to P3),
an asynchronous master reset input (MR), four counter
outputs (O0 to O3), an active LOW terminal count-up
(carry) output (TCU) and an active LOW terminal
count-down (borrow) output (TCD).
The counter outputs change state on the LOW to HIGH
transition of either clock input. However, for correct
counting, both clock inputs cannot be LOW
simultaneously. The outputs TCU and TCD are normally
HIGH. When the circuit has reached the maximum count
state of ‘15’, the next HIGH to LOW transition of CPU will
cause TCU to go LOW. TCU will stay LOW until CPU goes
HIGH again. Likewise, output TCD will go LOW when the
circuit is in the zero state and CPD goes LOW. When PL is
LOW, the information on P0 to P3 is asynchronously
loaded into the counter. A HIGH on MR resets the counter
independent of all other input conditions. The counter
stages are of a static toggle type flip-flop.
Fig.2 Pinning diagram.
Fig.1 Functional diagram.
PINNING
PL
P0 to P3
CPU
CPD
MR
TCU
TCD
O0 to O3
parallel load input (active LOW)
parallel data inputs
count-up clock pulse input (LOW to HIGH,
edge-triggered)
count-down clock pulse input (LOW to
HIGH, edge-triggered)
master reset input (asynchronous)
buffered terminal count-up (carry) output
(active LOW)
buffered terminal count-down
(borrow) output (active LOW)
buffered counter outputs
HEF40193BP(N): 16-lead DIL; plastic
(SOT38-1)
HEF40193BD(F): 16-lead DIL; ceramic (cerdip)
(SOT74)
HEF40193BT(D): 16-lead SO; plastic
(SOT109-1)
( ): Package Designator North America
FAMILY DATA, IDD LIMITS category MSI
See Family Specification
January 1995
2









No Preview Available !

HEF40193B Даташит, Описание, Даташиты
Philips Semiconductors
4-bit up/down binary counter
Product specification
HEF40193B
MSI
Fig.3 Logic diagram (continued on Fig.4).
January 1995
3










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HEF40193B4-bit up/down binary counterNXP Semiconductors
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