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74HC9323AD PDF даташит

Спецификация 74HC9323AD изготовлена ​​​​«Philips» и имеет функцию, называемую «Programmable ripple counter with oscillator 3-State».

Детали детали

Номер произв 74HC9323AD
Описание Programmable ripple counter with oscillator 3-State
Производители Philips
логотип Philips логотип 

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74HC9323AD Даташит, Описание, Даташиты
INTEGRATED CIRCUITS
74HC/HCT9323A
Programmable ripple counter with
oscillator (3-State)
Objective specification
IC06 Data Handbook
1995 Oct 27
Philips
Semiconductors









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74HC9323AD Даташит, Описание, Даташиты
Philips Semiconductors
Programmable ripple counter with oscillator
(3-State)
Objective specification
74HC/HCT9323A
FEATURES
8-pin space saving package
Programmable 3-stage ripple counter
Suitable for over-tone crystal application up to 85MHz
(VCC = 5V"10%)
3-State output buffer
Two internal capacitors
Recommended operating range for use with third overtone
crystals 3V to 6V
Oscillator stop function (MR)
Output capability:
bus driver ³ (15 LSTTL)
ICC category: MSI
APPLICATIONS
Control counters
Timers
Frequency dividers
Time-delay circuits
CIO (Compact Integrated Oscillator)
Third-overtone crystal operation
DESCRIPTION
The 74HC/HCT9323A are high-speed Si-gate CMOS devices. They
are specified in compliance with JEDEC standard no. 7A.
The HC/HCT 9323A are oscillators designed for quartz crystal
combined with a programmable 3-State counter, a 3-State output
buffer and an overriding asynchronous master reset (MR). With the
two select inputs S1 and S2 the counter can be switched in the
divide-1, 2, 4 or 8 mode. If left floating the clock is divided by 8. The
oscillator is designed to operate either in the fundamental or third
overtone mode depending on the crystal and external components
applied. On-chip capacitors minimize external component count for
third overtone crystal applications.
The oscillator may be replaced by an external clock signal at input
X1. In this event the other oscillator pin (X2) must be floating. The
counter advances on the negative-going transition of X1. A LOW
level on MR resets the counter, stops the oscillator and sets the
output buffer in the 3-State condition. MR can be left floating since
an internal pull-up resistor will make the MR inactive. In the HCT
version, the MR input and the two mode select pins S1 and S2 are
TTL compatible, but the X1 input has CMOS input switching levels
and may be driven by a TTL output using a pull-up resistor
connected to VCC.
QUICK REFERENCE DATA
GND = 0V; Tamb = 25°C, tr = tf = 6ns
SYMBOL
PARAMETER
CONDITIONS
Tamb = 25°C; GND = 0V
tPLH Propagation delay
tPHL X1 to OUT (S1 = S2 = LOW)
CL = 50pF; VCC = 5V
fmax Maximum clock frequency
CI Input capacitance except X1 and X2
CPD
Power dissipation
capacitance per package
NOTES:
CPD is used to determine the dynamic power dissipation (PD in µW):
PD = (CPD VCC2 fI) + (CL + VCC2 fO) + (Ipull-up VCC)
where:
fI = inputfrequency in MHz..
fO = output frequency in MHz.
VCC = Supply voltage in V.
CL = Output load capacitance in pF.
Ipull-up = Pull-up currents in µA.
For HC and HCT an external clock is applied to X1 with:
tr = tf v 6ns, VI is GND to VCC, MR = HIGH.
Ipull-up is the summation of –II (µA) of S1 and S2 inputs at the LOW state.
TYPICAL
HC HCT
88
150 150
3.5 3.5
UNIT
ns
MHz
pF
pF
ORDERING INFORMATION
PACKAGES
8-Pin Plastic SO
TEMPERATURE RANGE
0°C to +70°C
ORDER NUMBER
74HC/HCT9323A D
DWG NUMBER
SOT96-1
1995 Oct 27
2









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74HC9323AD Даташит, Описание, Даташиты
Philips Semiconductors
Programmable ripple counter with oscillator
(3-State)
Objective specification
74HC/HCT9323A
PIN CONFIGURATION
OUT 1
S2 2
S1 3
GND 4
8 VCC
7 X1
6 X2
5 MR
SK00013
IEC LOGIC SYMBOL
6
7 X1
5
MR
X2
CP
CD
3 S1
2 S2 OUT
1
SK00014
PIN DESCRIPTION
PIN NUMBER
SYMBOL
1 OUT
3, 2 S1-S2
4 GND
5 MR
6 X2
7 X1
8 VCC
FUNCTION
Counter output
Mode select inputs for
divide by 1, 2, 4 or 8
Ground (0V)
Master reset (active LOW)
Oscillator pin
Clock input/oscillator pin
Positive supply voltage
FUNCTION TABLE
INPUTS
S1
0
0
1
1
S2
0
1
0
1
FUNCTIONAL DIAGRAM
7 X1
5 MR
6
X2
CP 3-STAGE BINARY COUNTER
AND DECODER
CD
S1
S2
OUT
32
1
OUTPUTS
OUT
fI
fI/2
fI/4
fI/8
SK00015
1995 Oct 27
3










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Номер в каталогеОписаниеПроизводители
74HC9323AProgrammable ripple counter with oscillator 3-StatePhilips
Philips
74HC9323ADProgrammable ripple counter with oscillator 3-StatePhilips
Philips

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