74HCT9323A [NXP]
Programmable ripple counter with oscillator 3-State; 与振荡器的三态可编程脉冲计数器
| 型号： | 74HCT9323A |
| 厂家： | 
NXP |
| 描述： | Programmable ripple counter with oscillator 3-State |
| 文件： | 总6页 (文件大小：48K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
74HC/HCT9323A
Programmable ripple counter with
oscillator (3-State)
Objective specification
IC06 Data Handbook
1995 Oct 27
Philips
Semiconductors
Philips Semiconductors
Objective specification
Programmable ripple counter with oscillator
(3-State)
74HC/HCT9323A
FEATURES
• 8-pin space saving package
DESCRIPTION
The 74HC/HCT9323A are high-speed Si-gate CMOS devices. They
are specified in compliance with JEDEC standard no. 7A.
• Programmable 3-stage ripple counter
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.
• Suitable for over-tone crystal application up to 85MHz
(V = 5V"10%)
CC
• 3-State output buffer
• Two internal capacitors
• Recommended operating range for use with third overtone
crystals 3V to 6V
• Oscillator stop function (MR)
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
• Output capability:
bus driver ³ (15 LSTTL)
• I category: MSI
CC
APPLICATIONS
• Control counters
connected to V
.
CC
• Timers
• Frequency dividers
• Time-delay circuits
• CIO (Compact Integrated Oscillator)
• Third-overtone crystal operation
QUICK REFERENCE DATA
GND = 0V; T
= 25°C, t = t = 6ns
amb
r
f
CONDITIONS
= 25°C; GND = 0V
SYMBOL
PARAMETER
TYPICAL
HCT
UNIT
T
amb
HC
t
t
Propagation delay
X1 to OUT (S1 = S2 = LOW)
PLH
PHL
C = 50pF; V = 5V
8
8
ns
L
CC
f
Maximum clock frequency
150
3.5
150
3.5
MHz
pF
max
C
Input capacitance except X1 and X2
I
Power dissipation
capacitance per package
C
pF
PD
NOTES:
is used to determine the dynamic power dissipation (P in µW):
C
PD
P
D
2
2
= (C V
f ) + (C + V
f ) + (I
V
)
D
PD
CC
I
L
CC
O
pull-up
CC
where:
f
f
= inputfrequency in MHz..
= output frequency in MHz.
I
O
V
CC
= Supply voltage in V.
C
= Output load capacitance in pF.
L
I
= Pull-up currents in µA.
pull-up
For HC and HCT an external clock is applied to X1 with:
t = t v 6ns, V is GND to V , MR = HIGH.
r
f
I
CC
I
is the summation of –I (µA) of S1 and S2 inputs at the LOW state.
pull-up
I
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
ORDER NUMBER
DWG NUMBER
8-Pin Plastic SO
0°C to +70°C
74HC/HCT9323A D
SOT96-1
2
1995 Oct 27
Philips Semiconductors
Objective specification
Programmable ripple counter with oscillator
(3-State)
74HC/HCT9323A
PIN CONFIGURATION
IEC LOGIC SYMBOL
6
X2
X1
V
1
8
7
6
5
CC
7
5
OUT
CP
2
3
4
S2
S1
X1
X2
MR
MR
C
D
3
2
S1
S2
GND
1
OUT
SK00013
SK00014
PIN DESCRIPTION
FUNCTION TABLE
PIN NUMBER
SYMBOL
FUNCTION
Counter output
INPUTS
OUTPUTS
OUT
1
OUT
S1
0
S2
0
Mode select inputs for
divide by 1, 2, 4 or 8
f
I
3, 2
S1-S2
0
1
f /2
I
4
5
6
7
8
GND
MR
X2
Ground (0V)
1
0
f /4
I
Master reset (active LOW)
Oscillator pin
1
1
f /8
I
X1
Clock input/oscillator pin
Positive supply voltage
V
CC
FUNCTIONAL DIAGRAM
6
X2
7
5
X1
3-STAGE BINARY COUNTER
AND DECODER
CP
MR
C
D
S1
S2
OUT
3
2
1
SK00015
3
1995 Oct 27
Philips Semiconductors
Objective specification
Programmable ripple counter with oscillator
(3-State)
74HC/HCT9323A
LOGIC DIAGRAM
X2
X1
CP
Q
CP
Q
CP
Q
FF
R
FF
R
FF
R
2pF
2pF
V
CC
V
CC
DECODER
V
CC
V
V
CC
CC
OUT
MR
Internal capacitors typical 2pF each, including stray capacitors on pins X1 and X2,
total capacitance will be typical 7pF per pin
SK00016
4
1995 Oct 27
Philips Semiconductors
Objective specification
Programmable ripple counter with oscillator
(3-State)
74HC/HCT9323A
SO8: plastic small outline package; 8 leads; body width 3.9mm
SOT96-1
5
1995 Oct 27
Philips Semiconductors
Objective specification
Programmable ripple counter with oscillator
(3-State)
74HC/HCT9323A
DEFINITIONS
Data Sheet Identification
Product Status
Definition
This data sheet contains the design target or goal specifications for product development. Specifications
may change in any manner without notice.
Objective Specification
Formative or in Design
This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips
Semiconductors reserves the right to make changes at any time without notice in order to improve design
and supply the best possible product.
Preliminary Specification
Product Specification
Preproduction Product
Full Production
This data sheet contains Final Specifications. Philips Semiconductors reserves the right to make changes
at any time without notice, in order to improve design and supply the best possible product.
Philips Semiconductors and Philips Electronics North America Corporation reserve the right to make changes, without notice, in the products,
including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips
Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright,
or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask
work right infringement, unless otherwise specified. Applications that are described herein for any of these products are for illustrative purposes
only. PhilipsSemiconductorsmakesnorepresentationorwarrantythatsuchapplicationswillbesuitableforthespecifiedusewithoutfurthertesting
or modification.
LIFE SUPPORT APPLICATIONS
Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices,
orsystemswheremalfunctionofaPhilipsSemiconductorsandPhilipsElectronicsNorthAmericaCorporationProductcanreasonablybeexpected
to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips
Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully
indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Philips Semiconductors and Philips Electronics North America Corporation
register eligible circuits under the Semiconductor Chip Protection Act.
Copyright Philips Electronics North America Corporation 1995
All rights reserved. Printed in U.S.A.
相关型号：
74HCT93D-T
IC HCT SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP BINARY COUNTER, PDSO14, PLASTIC, SO-14, Counter
NXP
74HCT93DB-T
IC HCT SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP BINARY COUNTER, PDSO14, Counter
NXP
©2020 ICPDF网 联系我们和版权申明