The DP8310 and DP8311 Octal Latched Peripheral Drivers
provide the function of latching eight bits of data with open
collector outputs, each driving up to 100 mA DC with an operating voltage range of 30V. Both devices are designed for
low input currents, high input/output voltages, and feature a
power up clear (outputs off) function.
The DP8310 is positive edge latching. Two active low write/
enable inputs are available forconvenientdatabussingwithout external gating.
The DP8311 is positive edge latching. The active low strobe
input latches data or allows fall through operation when held
at logic “0”. The latches are cleared (outputs off) with a logic
“0” on the clear pin.
Features
n High current, high voltage open collector outputs
n Low current, high voltage inputs
Connection Diagrams
Dual-In-Line Package
n All outputs simultaneously sink rated current “DC” with
no thermal derating at maximum rated temperature
n Parallel latching or buffering
n Separate active low enables for easy data bussing
n Internal “glitch free” power up clear
n 10%V
tolerance
CC
Applications
n High current high voltage drivers
n Relay drivers
n Lamp drivers
n LED drivers
n TRIAC drivers
n Solenoid drivers
n Stepper motor drivers
n Level translators
n Fiber-optic LED drivers
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
DP8310/DP8311V
Logical “1” Input CurrentV
Input Current at Maximum Input
Voltage
Logical “0” Input CurrentV
Input Clamp VoltageI
logical “1”, V
=
30V2.5250µA
OH
=
2.7V, V
IH
=
V
30V, V
IN
=
0.4V, V
IN
=
12 mA−0.8−1.5V
IN
Supply Current, Outputs OnData outputs latched to a
logical “0”. All Inputs are
=
at logical “1”, V
Max.
CC
DP8310100152mA
DP831188125mA
Supply Current, Outputs OffData outputs latched to a
logic “1”. Other
conditions same as I
CC0
.
DP83104057mA
DP83112536mA
A
=
65˚C/W.
AC Electrical Characteristics
DP8310 only: V
=
4.5V, T
CC
SymbolParameterConditionsMinTypMaxUnits
t
pd0
High to Low Propagation Delay
Write Enable Input to Output
t
pd1
Low to High Propagation Delay
Write Enable Input to Output
t
SETUP
Minimum Set-Up Time
Data in to Write Enable Input
t
pWH,tpWL
t
THL
t
TLH
C
IN
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Minimum Write Enable Pulse Width
High to Low Output Transition Time
Low to High Output Transition Time
“N” Package (Note 4)515pF
=
25˚C
A
(Figure 1 )
(Figure 1 )
=
t
HOLD
(Figure 1)
(Figure 1 )
(Figure 1 )
(Figure 1 )
0ns
4520ns
6025ns
40120ns
70150ns
1635ns
3870ns
Page 3
AC Electrical Characteristics
DP8311 only: V
=
CC
SymbolParameterConditionsMinTypMaxUnits
t
pd0
High to Low Propagation Delay
Data In to Output
t
pd1
Low to High Propagation Delay
Data to Output
t
SETUP
Minimum Set-Up Time
Data in to Strobe Input
t
pWL
t
pdC
t
pWC
t
THL
t
TLH
C
IN
Note 1: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. Except for “Operating Temperature Range” they
are not meant to imply that the devices should be operated at these limits. The table of “Electrical Characteristics” provides conditions for actual device operation.
Note 2: Unless otherwise specified min/max limits apply across the 0˚C to +70˚C for the DP8310/DP8311. All typical values are for T
Note 3: All currents into device pins shown as positive, out of device pins as negative, all voltages referenced to ground unless otherwise noted.
Note 4: Input capacitance is guaranteed by periodic testing. f
Minimum Strobe Enable Pulse Width
Propagation Delay Clear to Data Output
Minimum Clear Input Pulse Width
High to Low Output Transition Time
Low to High Output Transition Time
Input Capacitance — Any Input(Note 4)515pF
Don’t Care
1=Outputs Off
0=Outputs On
Q=Pre-existing Output
=
O
Positive Edge Transition
DP8311
DS005246-3
DS005246-4
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Page 5
Switching Time Waveforms
DP8310/DP8311
DP8310
DS005246-5
DP8311
Switching Time Test Circuits
DS005246-7
=
*
WE
0V When the Input=WE
1
2
FIGURE 1. DP8310
Pulse Generator Characteristics:
=
=
Z
50Ω,t
O
=
t
5ns
r
f
FIGURE 2. DP8311
DS005246-6
DS005246-8
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Page 6
Typical Applications DP8310/11 Buffering High Current Device (Notes 5, 6)
PNP High Current Driver
Circuit Used to Reduce Peak
Transient Lamp Current
DP8310/DP8311
DS005246-9
NPN High Current Driver
DS005246-10
VMOS High Current Driver
DS005246-12
DS005246-11
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Page 7
Typical Applications DP8310/11 Buffering High Current Device (Notes 5, 6) (Continued)
Eight Output/Four Output Fiber Optic LED Driver
DP8311 100 mA Drivers
DS005246-13
DP8311 Parallel Outputs (200 mA) Drivers
*
Parallel only adjacent outputs
DP8310/DP8311
*
DS005246-14
8-Bit Level Translator Driver
Digital Controlled 256 Level
Power Supply from 1.2V to 30V
DS005246-15
DS005246-16
www.national.com7
Page 8
Typical Applications DP8310/11 Buffering High Current Device (Notes 5, 6) (Continued)
200 mA Drive for a 4 Phase Bifilar Stepper Motor
Reading the State of the Latched Peripherals
DP8310/DP8311
DS005246-17
*
Parallel only adjacent outputs
*
High Level Input
Voltage must not
Exceed V
DM81LS96
Note 5: Always use good V
Note 6: Printed circuit board mounting is required if these devices are operated at maximum rated temperature and current (all outputs on DC).
bypass and ground techniques to suppress transients caused by peripheral loads.
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
labeling, can be reasonably expected to result in a
significant injury to the user.
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.