935271414518 [NXP]
IC 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 3.90 MM, PLASTIC, MS-012, SO-8, Power Management Circuit;型号: | 935271414518 |
厂家: | NXP |
描述: | IC 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 3.90 MM, PLASTIC, MS-012, SO-8, Power Management Circuit 光电二极管 |
文件: | 总12页 (文件大小:116K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
MAX708R/S/T
3 V microprocessor supervisor circuit with
power fail comparator and manual reset
Product data
2003 Feb 13
Supersedes data of 20 Jun 2002
Philips
Semiconductors
Philips Semiconductors
Product data
3 V microprocessor supervisor circuit with
power fail comparator and manual reset
MAX708R/S/T
DESCRIPTION
The MAX708R/S/T are microprocessor supervisory circuits used to
monitor +3 V power supply levels in +3 V to +5 V microprocessor
and other logic systems. The R, S, T suffixes have reset thresholds
of 2.63 V, 2.93 V and 3.08 V, respectively. They reduce the number
of circuit components, and improve reliability and accuracy
compared to using separate ICs or discrete components.
The MAX708R/S/T features make the MAX708R/S/T ideal for use in
portable, battery operated equipment. The low supply current,
typically 50 µA, minimizes battery load. Both RESET and RESET
are active during power-up, power-down and brownout conditions
An active-LOW manual reset input is also available.
A 1.25 V threshold detector provides power-fail warning. This
independent comparator can be used to monitor a second voltage
supply and provide an early warning to the microprocessor that
voltage is falling. This allows for an orderly shutdown, transmitting
an alert to an operator, or activation of an alternate power source
before the device asserts the reset signals.
The device is available in the 8-pin SO package.
FEATURES
APPLICATIONS
• RESET and RESET signals
• Battery powered devices
• Critical microprocessor monitoring
• Controllers
• Independent comparator with 1.25 V threshold for power failure or
low battery warning
• Manual reset input
• Portable instruments
• 50 µA quiescent current
• Reset thresholds of 2.63, 2.93, and 3.08 V
• Guaranteed RESET assertion to V = 1 V
CC
SIMPLIFIED SYSTEM DIAGRAM
REGULATED
DC SUPPLY (V
)
CC
UNREGULATED
DC SUPPLY
MICROPROCESSOR
V
RESET
RESET
V
CC
CC
RESET INPUT
INTERRUPT
MAX708
R1
1%
PFO
PFI
MR
R2
1%
PUSH-BUTTON
SWITCH
GND
GND
SL01640
Figure 1. Simplified system diagram.
2
2002 Feb 13
Philips Semiconductors
Product data
3 V microprocessor supervisor circuit with
power fail comparator and manual reset
MAX708R/S/T
ORDERING INFORMATION
PACKAGE
TEMPERATURE
RANGE
TYPE NUMBER
NAME
DESCRIPTION
MAX708xD
SO8
plastic small outline package; 8 leads (see dimensional drawing)
–45 °C to +85 °C
NOTE:
The device has 3 voltage output options, indicated by the ‘x’ on the
‘Type number’.
Part number
MAX708RD
MAX708SD
MAX708TD
Threshold Voltage (Typical)
2.63 V
2.93 V
3.08 V
PIN CONFIGURATION
PIN DESCRIPTION
PIN SYMBOL
DESCRIPTION
TOP VIEW
1
MR
Manual reset input (Active-LOW). Triggers a
reset pulse when pulled below 0.6 V. Connect
MR
1
2
3
4
8
7
6
5
RESET
RESET
NC
V
to V or leave floating if not used.
CC
CC
SO8
2
3
4
V
CC
Supply voltage input.
Ground.
GND
GND
PFI
PFI
PFO
Power fail comparator input. When PFI is less
than 1.25 V, PFO goes LOW, otherwise PFO
remains HIGH. Connect to ground if not used.
SL01639
Figure 2. Pin configuration.
5
PFO
Power fail comparator output (Active-LOW).
When voltage at PFI is less than 1.25 V, PFO
goes LOW and sinks current. Do not connect
if not used.
6
7
NC
No connection.
RESET
Active-LOW reset output. RESET is LOW if
V
CC
is below the threshold voltage or if MR is
held LOW. RESET is maintained for 200 ms
after the reset conditions are terminated.
8
RESET
Active-HIGH reset output. RESET is HIGH if
V
CC
is below the threshold voltage or if MR is
held LOW. RESET is maintained for 200 ms
after the reset conditions are terminated.
MAXIMUM RATINGS
SYMBOL
PARAMETER
Supply voltage
Other input pin voltage
CONDITIONS
MIN.
–0.3
–0.3
–
MAX.
UNIT
V
V
6.0
CC
n
V
Note 1
V
+ 0.3
V
CC
Input current at V or GND
20
mA
mA
V/µs
°C
CC
Output current, all outputs
–
20
100
+85
+160
470
Rate of rise at V
–
CC
T
amb
Ambient temperature
–40
–65
–
T
stg
Storage temperature
°C
P
Power dissipation, SO8 package
T
= 70 °C; Note 2
mW
amb
NOTES:
1. Input voltage limits on PFI and MR can be exceeded provided the input current is less than 10 mA.
2. Derate the dissipation 5.88 mW/°C above 70 °C.
3
2002 Feb 13
Philips Semiconductors
Product data
3 V microprocessor supervisor circuit with
power fail comparator and manual reset
MAX708R/S/T
ELECTRICAL CHARACTERISTICS
T
amb
= –40 °C to +85 °C; V = (V + 0.7 V) to 5.5 V, unless otherwise specified.
CC
RST(max)
SYMBOL
PARAMETER
Operating voltage range
Supply current
CONDITIONS
MIN.
1.2
–
TYP.
–
MAX.
5.5
300
500
2.70
3.00
3.15
–
UNIT
V
V
CC
V
V
< 3.6 V
< 5.5 V
50
µA
µA
V
I
CC
SUP
–
65
CC
MAX708R
MAX708S
MAX708T
2.55
2.85
3.00
–
2.63
2.93
3.08
20
V
RST
Reset threshold (Note 1)
V
V
Reset threshold hysteresis
Reset delay time (Note 1)
mV
ms
ms
ms
V
MAX708R; V = 3.0 V
140
140
–
200
200
200
–
280
280
–
t
CC
RST
MAX708S, MAX708T; V = 3.3 V
CC
MAX708R, MAX708S, MAX708T; V = 5.0 V
CC
V
I
< V < 3.6V;
V
V
V
V
V
V
× 0.8
–
V
OH
HIGH-level output voltage
RESET
RESET
PFO
RST(max)
CC
CC
CC
CC
CC
CC
CC
= 500 µA
SOURCE
4.5 V < V < 5.5 V;
– 1.5
× 0.8
– 1.5
× 0.8
– 1.5
–
–
–
–
–
–
–
–
–
V
V
V
V
V
V
V
CC
I
= 800 µA
SOURCE
V
I
< V < 3.6V;
RST(max)
CC
= 500 µA
SOURCE
4.5 V < V < 5.5 V;
–
CC
I
= 800 µA
SOURCE
V
I
< V < 3.6V;
–
RST(max)
CC
= 500 µA
SOURCE
4.5 V < V < 5.5 V;
–
CC
I
= 800 µA
SOURCE
V
I
< V < 3.6 V;
–
0.3
0.4
V
OL
LOW-level output voltage
RESET
RST(max)
CC
= 1.2 mA
SINK
4.5 V < V < 5.5 V;
–
CC
I
= 3.2 mA
SINK
V
= 1.2 V; I
= 100 µA
SINK
–
–
–
–
0.3
0.3
V
V
CC
V
< V < 3.6 V;
RESET
PFO
RST(max)
CC
I
= 500 µA
SINK
4.5 V < V < 5.5 V;
–
–
–
–
–
–
0.4
0.3
0.4
V
V
V
CC
= 1.2 mA
I
SINK
V
< V < 3.6 V;
CC
RST(max)
I
= 1.2 mA
SINK
4.5 V < V < 5.5 V;
CC
I
= 3.2 mA
SINK
V
< V < 3.6 V; MR = 0 V
25
100
500
150
–
70
250
–
250
600
–
µA
µA
ns
ns
V
MR pull-up current
RST(max)
CC
4.5 V < V < 5.5 V; MR = 0 V
CC
V
< V < 3.6 V
CC
t
MR pulse width
RST(max)
MR
4.5 V < V < 5.5 V
–
–
CC
V
< V < 3.6 V
–
0.6
0.8
–
V
V
t
MR LOW-level input threshold
MR HIGH-level input threshold
MR to reset out delay (Note 1)
RST(max)
CC
IL
4.5 V < V < 5.5 V
–
–
V
CC
V
< V < 3.6 V
V
× 0.7
–
V
RST(max)
CC
CC
IH
4.5 V < V < 5.5 V
2.0
–
–
–
V
CC
V
< V < 3.6 V
–
750
250
1.3
ns
ns
V
RST(max)
CC
MD
4.5 V < V < 5.5 V
–
–
CC
PFI input threshold
PFI input current
PFI falling; MAX708R: V = 3.0 V;
MAX708S/T: V = 3.3 V
1.2
1.25
CC
CC
–25
0.01
+25
nA
NOTE:
1. Applies to RESET and RESET.
4
2002 Feb 13
Philips Semiconductors
Product data
3 V microprocessor supervisor circuit with
power fail comparator and manual reset
MAX708R/S/T
TIMING DIAGRAM
On power-up, when V reaches 1 V, RESET is guaranteed to be a
Event F: The V rises above the reset threshold again and
CC
CC
logic LOW and RESET is guaranteed to be a logic HIGH.
remains above the reset threshold for typically 200 ms. At G, the
reset is once again released.
Event A: V rises to the reset threshold voltage, V
. At this time,
RST
CC
the internal reset delay timer is initiated. RESET and RESET will
remain asserted for the reset delay time, t of typically 200 ms
Event H: The MR is externally pulled LOW for longer than 150 ns
(minimum MR pulse width, t
for V = +5 V).
CC
RST
MR
after the supply voltage rises above the reset threshold, V
.
RST
Event I: The manual reset is asserted within 250 ns (maximum MR
to reset out delay time, t for V = +5V).
Event B: At this time, the resets are released. RESET goes HIGH;
while RESET goes LOW. The reset delay time helps to ensure valid
reset signals despite erratic changes in supply voltage.
MD
CC
Event J: the MR pin returns HIGH. At this point, reset delay timer is
initiated and in typically 200 ms, (at Event K), the reset condition is
released.
Events C–E: At Event C, under brown-out conditions, V falls
CC
below the reset threshold minus the hysteresis voltage (typically
20 mV), and the reset signal is asserted. As power recovers and
Event L: On power-down, when V falls below V
RESET and RESET are guaranteed to be asserted until V falls
below 1 V.
– 20 mV,
RST
CC
CC
V
CC
rises above the reset threshold (Event D), it once again
initiates the reset delay time. At Event E, V falls below the reset
CC
threshold before the reset delay time has elapsed and reset remains
asserted.
V
CC
V
– 20 mV
V
V
RST
RST
RST
t
t
t
RST
RST
RST
RESET
RESET
MR
t
MD
t
MR
TIME
A
B
C
D
E
F
G
H
I
J
K
L
SL01812
Figure 3. Timing diagram.
5
2002 Feb 13
Philips Semiconductors
Product data
3 V microprocessor supervisor circuit with
power fail comparator and manual reset
MAX708R/S/T
TECHNICAL DISCUSSION
General discussion
RESET and RESET outputs
The MAX708R/S/T microprocessor supervisor circuits are
comprised of both RESET and RESET outputs, a MR manual reset
input, and a comparator which may be used for power-failure
detection (see Figure 4).
The MAX708R/S/T RESET and RESET outputs are push-pull
outputs and do not require an external pull-up resistor. The RESET
output is active-LOW logic, while the RESET output is active-HIGH
logic.
The reset threshold voltages are guaranteed within ±3% of the
nominal reset threshold. The MAX708R/S/T are designed to monitor
+3 V to +3.3 V power supplies in +3 V to +5 V microprocessor and
other logic systems. With a threshold voltage range between 5% to
10% of the nominal supply voltage, the MAX708R/S/T will assert an
output within predictable range of power supply voltage.
Manual Reset
The manual reset input, MR is active-LOW logic. It allows the
RESET and RESET to be asserted by a pushbutton switch. A
mechanical pushbutton switch is effectively debounced by the
140 ms minimum reset time delay. MR may be driven from an
external logic circuit because it is TTL/CMOS compatible. The
minimum MR input pulse is 500 ns for V = +3 V and 150 ns for
CC
V
CC
= +5 V. If manual reset will not be used, leave the pin left
floating or tie it to V
.
CC
MAX708R/S/T
V
CC
Power-fail comparator
The power-fail comparator has many useful purposes, such as
monitoring upstream or secondary power supplies. The Power-Fail
Output (PFO) and the non-inverting Power-Fail Input (PFI) are
pinned out. The inverting input of the power-fail comparator is
internally connected to a 1.25 V reference. The comparator has
10 mV of hysteresis which prevents repeated triggering of the
output (PFO).
8
7
RESET
RESET
1
2
MR
RESET
GENERATOR
V
CC
V
RST
6
5
NC
3
4
GND
PFI
PFO
+1.25 V
POWER-FAIL
COMPARATOR
SL01813
Figure 4. MAX708R/S/T internal block diagram.
6
2002 Feb 13
Philips Semiconductors
Product data
3 V microprocessor supervisor circuit with
power fail comparator and manual reset
MAX708R/S/T
APPLICATION INFORMATION
Operating with a +3 V or +5 V supply
Adding hysteresis to the power-fail comparator
When powered from either +3.0 V or +5.0 V, the MAX708R/S/T
provides voltage monitoring at the reset threshold. The
MAX708R/S/T are ideal for portable applications that are powered
from a +3 V battery or an AC-DC wall adapter that generates +5 V.
Hysteresis adds noise margin to the power-fail comparator and
prevents repeated triggering of PFO when V is varying around the
IN
comparator trip point. In Figure 5, “Adding hysteresis to the
power-fail comparator”, R1 and R2 are the divider resistors that set
the desired trip point. R3 is added from the comparator input to the
output to increase hysteresis; it is typically an order of magnitude
greater than R1 and R2. The current through R1 and R2 should be
at least 1 mA to ensure that the 25 nA max PFI input current does
significantly shift the trip point. Capacitor C1 provides noise
rejection.
Power-fail comparator
An early warning power-fail circuit uses the power-fail input to
monitor the upstream, unregulated DC supply that powers the
+3 V/+3.3 V regulator powering the MAX708R/S/T.
Figure 1, “Simplified system diagram”, shows the resistor divider
network that is connected to PFI. The network resistors R1 and R2
are chosen so that the voltage at PFI will fall below 1.25 V before
the regulator voltage drops out. The PFO signal may be used to
interrupt the microprocessor so it can perform an orderly shutdown.
V
IN
V
CC2
R1
R2
Any unregulated or regulated supply can be monitored by adjusting
the resistive divider for the desired power supply trip voltage. Table 1
shows examples for nominal trip voltages of 3.7 V and 10.9 V. The
V
CC
PFI
C1
R3
TO
desired trip voltage, V is calculated by the following equation:
MAX708R/S/T
T
(R1 ) R2)
PFO
+ 1.25 Vƪ
ƫ
VT
R2
GND
Table 1. Power-fail detection circuit of
3.7 V and 10.9 V
MICROPROCESSOR
SL01814
R1 1%
R2 1%
V
T
Figure 5. Adding hysteresis to the power-fail comparator.
5 V
1 MΩ
510 kΩ
3.7 V
unregulated
power supply
PFO
12 V
1 MΩ
130 kΩ
10.9 V
V
CC2
unregulated
power supply
0 V
0 V
V
V
V
V
IN
L
T
H
(R1 ) R2)
+ 1.25 Vƪ
ƫ
VT
R2
The hysteresis of V and V voltages are calculated by:
H
L
(R3 ) R2)
(R2 R3)
+ 1.25 V 1 ) ƪ
ƫ R1
NJ
Nj
VH
ǒ
Ǔ
1.25 * VCC
1.25
ǒ Ǔ)
NJ
VL + 1.25 V ) R1
ǒ Ǔ
Nj
R2
R3
Thus,
ǒ
Ǔ
R1 VCC2
VHYS + VH * VL
+
R3
7
2002 Feb 13
Philips Semiconductors
Product data
3 V microprocessor supervisor circuit with
power fail comparator and manual reset
MAX708R/S/T
Monitoring a negative voltage
The power-fail comparator can be used to monitor a negative
voltage using the circuit shown in Figure 6.
Ensuring a valid reset down to V = 0 V
CC
When V falls below 1 V, the MAX708R/S/T RESET no longer
CC
sinks current (i.e., it becomes open circuit). A high impedance
CMOS logic input connected to RESET can drift to undetermined
voltages. In most applications in which the microprocessor circuitry
is inoperative below 1 V this will not present a problem. However, in
applications in which RESET must be valid down to 0 V, use a
relatively large pull-down resistor from RESET to ground (Figure 7).
100 kΩ is small enough to provide a path for any stray leakage
currents to flow to ground (holding RESET LOW), while it is large
enough not to load RESET.
When the negative supply is operating in tolerance, PFO is LOW.
However, when the negative supply drops (goes positive) PFO goes
HIGH.
+3 V to +3.3 V
R1
V
CC
V
CC
PFI
R2
MAX708R/S/T
V
V
CC
CC
PFO
GND
TO µP
INTERRUPT
RESET
RESET
100 kΩ
MAX708R/S/T
MICROPROCESSOR
GND
V–
SL01815
GND
Figure 6. Circuit for monitoring a negative voltage.
SL01816
When monitoring a negative supply, the trip voltage, V is a
negative voltage. Use the following ratio to determine the divider
resistors:
T
Figure 7. RESET valid to V = Ground circuit.
CC
Interfacing to a microprocessor with bi-directional
reset pins
ǒ
Ǔ
ǒ
Ǔ
VCC * 1.25
1.25 * VT
+
R1
R2
Microprocessors with bi-directional reset pins, such as the Motorola
68HC11 series, can be connected to the MAX708R/S/T RESET
output. The bi-directional reset of the microprocessor functions both
as a driven reset input and as an active reset driver.
Solving for V :
T
R2
R1
ǒ
Ǔ
+ 1.25 * ǒ Ǔ
VT
VCC * 1.25
To ensure a correct output on the MAX708R/S/T even when the
microprocessor reset pin is in the opposite state, connect a 4.7 kΩ
resistor between the reset pins as shown in Figure 8. This allows the
microprocessor to issue commands to the system regardless of the
state of the RESET pin.
PFO
+3 V
to
+3.3 V
V
CC
0 V
V
0 V
IN
V
V
CC
V
T
CC
4.7 kΩ
RESET
RESET
MAX708R/S/T
MOTOROLA
68HCXX
GND
GND
SL01817
Figure 8. Interfacing to a microprocessor with bi-directional
Reset I/O
8
2002 Feb 13
Philips Semiconductors
Product data
3 V microprocessor supervisor circuit with
power fail comparator and manual reset
MAX708R/S/T
PACKING METHOD
The MAX708R/S/T are packed in reels, as shown in Figure 9.
GUARD
BAND
TAPE
TAPE DETAIL
REEL
ASSEMBLY
COVER TAPE
CARRIER TAPE
BARCODE
LABEL
BOX
SL01305
Figure 9. Tape and reel packing method.
9
2002 Feb 13
Philips Semiconductors
Product data
3 V microprocessor supervisor circuit with
power fail comparator and manual reset
MAX708R/S/T
SO8: plastic small outline package; 8 leads; body width 3.9 mm
pin 1 index
B
2
4.95
4.80
0.51
0.33
4.95
4.80
1.27
0.38
0.076
0.003
1.73
0.189
0.195
0.013
0.020
0.050
0.015
0.068
SO8
10
2002 Feb 13
Philips Semiconductors
Product data
3 V microprocessor supervisor circuit with
power fail comparator and manual reset
MAX708R/S/T
REVISION HISTORY
Rev
Date
Description
_2
20030213
Product data (9397 750 10514); ECN 853–2354 29010 of 02 October 2002;
supersedes data of 20 Jun 2002 (9397 750 10023).
Modifications:
• Ordering information: change temperature range from: (0 °C to +70 °C) to: (–45 °C to +85 °C).
• Maximum ratings: change (T , operating temperature) to (T , ambient temperature).
opr
amb
_1
20020620
Product data (9397 750 10023).
Engineering Change Notice 853–2354 28505 (date: 20020620).
11
2002 Feb 13
Philips Semiconductors
Product data
3 V microprocessor supervisor circuit with
power fail comparator and manual reset
MAX708R/S/T
Data sheet status
Product
status
Definitions
[1]
Level
Data sheet status
[2] [3]
I
Objective data
Development
This data sheet contains data from the objective specification for product development.
Philips Semiconductors reserves the right to change the specification in any manner without notice.
II
Preliminary data
Product data
Qualification
Production
This data sheet contains data from the preliminary specification. Supplementary data will be published
at a later date. Philips Semiconductors reserves the right to change the specification without notice, in
order to improve the design and supply the best possible product.
III
This data sheet contains data from the product specification. Philips Semiconductors reserves the
right to make changes at any time in order to improve the design, manufacturing and supply. Relevant
changes will be communicated via a Customer Product/Process Change Notification (CPCN).
[1] Please consult the most recently issued data sheet before initiating or completing a design.
[2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL
http://www.semiconductors.philips.com.
[3] For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
Definitions
Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see
the relevant data sheet or data handbook.
Limitingvaluesdefinition— Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting
values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given
in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no
representation or warranty that such applications will be suitable for the specified use without further testing or modification.
Disclaimers
Life support — These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be
expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree
to fully indemnify Philips Semiconductors for any damages resulting from such application.
Right to make changes — Philips Semiconductors reserves the right to make changes in the products—including circuits, standard cells, and/or software—described
or contained herein in order to improve design and/or performance. When the product is in full production (status ‘Production’), relevant changes will be communicated
viaaCustomerProduct/ProcessChangeNotification(CPCN).PhilipsSemiconductorsassumesnoresponsibilityorliabilityfortheuseofanyoftheseproducts,conveys
nolicenseortitleunderanypatent, copyright, ormaskworkrighttotheseproducts, andmakesnorepresentationsorwarrantiesthattheseproductsarefreefrompatent,
copyright, or mask work right infringement, unless otherwise specified.
Koninklijke Philips Electronics N.V. 2002
Contact information
All rights reserved. Printed in U.S.A.
For additional information please visit
http://www.semiconductors.philips.com.
Fax: +31 40 27 24825
Date of release: 02-03
9397 750 10514
For sales offices addresses send e-mail to:
sales.addresses@www.semiconductors.philips.com.
Document order number:
Philips
Semiconductors
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NXP
935271490512
IC 4 CHANNEL(S), 5M bps, SERIAL COMM CONTROLLER, PQCC68, PLASTIC, MS-018, SOT-188-2, LCC-68, Serial IO/Communication Controller
NXP
935271501518
SPECIALTY CONSUMER CIRCUIT, PQFP100, 14 X 20 MM, 2.80 MM HEIGHT, PLASTIC, MO-112, SOT-317-3, QFP-100
NXP
935271530112
IC LOW SKEW CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO24, 7.50 MM, PLASTIC, MS-013, SOT-137-1, SO-24, Clock Driver
NXP
935271530118
IC LOW SKEW CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO24, 7.50 MM, PLASTIC, MS-013, SOT-137-1, SO-24, Clock Driver
NXP
935271531112
IC LOW SKEW CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO24, 5.30 MM, PLASTIC, MO-150, SOT-340-1, SSOP-24, Clock Driver
NXP
935271531118
IC LOW SKEW CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO24, 5.30 MM, PLASTIC, MO-150, SOT-340-1, SSOP-24, Clock Driver
NXP
935271533112
IC 256 X 8 EEPROM, 8 I/O, PIA-GENERAL PURPOSE, PDSO16, 7.50 MM, PLASTIC, MS-013, SOT-162-1, SO-16, Parallel IO Port
NXP
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