4M-WORD BY 8-BIT (BYTE MODE) / 2M-WORD BY 16-BIT (WORD MODE)
Description
The µPD23C32000AL is a 33,554,432 bits mask-programmable ROM. The word organization is selectable (BYTE
mode : 4,194,304 words by 8 bits, WORD mode : 2,097,152 words by 16 bits).
The active levels of OE (Output Enable Input) can be selected with mask-option.
The
PD23C32000AL is packed in 48-pin PLASTIC TSOP (I) and 44-pin PLASTIC SOP.
µ
Features
• Word organization
4,194,304 words by 8 bits (BYTE mode)
2,097,152 words by 16 bits (WORD mode)
= 2.7 V to 3.6 V
• Operating supply voltage : V
Operating supply voltageAccess timePower supply current (Active mode)Standby current (CMOS level input)
V
CC
3.0 V ± 0.3 V1003030
3.3 V ± 0.3 V90
CC
ns (MAX.)mA (MAX.)
A (MAX.)
µ
Ordering Information
Part NumberPackage
PD23C32000ALGY-xxx-MJH48-pin PLASTIC TSOP (I) (12 x 18) (Normal bent)
µ
PD23C32000ALGY-xxx-MKH48-pin PLASTIC TSOP (I) (12 x 18) (Reverse bent)
µ
PD23C32000ALGX-xxx44-pin PLASTIC SOP (15.24 mm (600))
µ
(xxx : ROM code suffix No.)
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all products and/or types are available in every country. Please check with an NEC Electronics
sales representative for availability and additional information.
Document No. M15773EJ4V0DS00 (4th edition)
Date Published February 2003 NS CP(K)
Printed in Japan
PD23C32000ALGX: 44-pin PLASTIC SOP (15.24 mm (600))
µ
µµµµ
PD23C32000AL
Data Sheet M15773EJ4V0DS
15
PD23C32000AL
µµµµ
Revision History
Edition/PageType ofLocationDescription
DateThisPreviousrevision(Previous edition → This edition)
editionedition
4th edition/ p.9p.9AdditionAC CharacteristicsAddress skew time (t
Feb. 2003Note
p.10–AdditionCautions on power application
p.11p.10ModificationRead Cycle Timing Chart
SKEW
)
16
Data Sheet M15773EJ4V0DS
[MEMO]
µµµµ
PD23C32000AL
Data Sheet M15773EJ4V0DS
17
[MEMO]
µµµµ
PD23C32000AL
18
Data Sheet M15773EJ4V0DS
PD23C32000AL
µµµµ
NOTES FOR CMOS DEVICES
1PRECAUTION AGAINST ESD FOR SEMICONDUCTORS
Note:
Strong electric field, when exposed to a MOS device, can cause destruction of the gate oxide and
ultimately degrade the device operation. Steps must be taken to stop generation of static electricity
as much as possible, and quickly dissipate it once, when it has occurred. Environmental control
must be adequate. When it is dry, humidifier should be used. It is recommended to avoid using
insulators that easily build static electricity. Semiconductor devices must be stored and transported
in an anti-static container, static shielding bag or conductive material. All test and measurement
tools including work bench and floor should be grounded. The operator should be grounded using
wrist strap. Semiconductor devices must not be touched with bare hands. Similar precautions need
to be taken for PW boards with semiconductor devices on it.
2
HANDLING OF THE APPLIED WAVEFORM OF INPUT PINS AND THE UNUSED INPUT PINS
FOR CMOS
Note:
Input levels of CMOS devices must be fixed. CMOS devices behave differently than Bipolar or
IL
NMOS devices. If the input of a CMOS device stays in an area that is between V
IH
(MIN.) due to the effects of noise or some other irregularity, malfunction may result.
V
Therefore, not only the input waveform is fixed, but also the waveform changes, it is important
to use the CMOS device under AC test conditions. For unused input pins in particular, CMOS
devices should not be operated in a state where nothing is connected, so input levels of CMOS
devices must be fixed to high or low by using pull-up or pull-down circuitry. Each unused pin
DD
should be connected to V
being an output pin. All handling related to the unused pins must be judged device by device
and related specifications governing the devices.
or GND with a resistor, if it is considered to have a possibility of
(MAX.) and
3STATUS BEFORE INITIALIZATION OF MOS DEVICES
Note:
Power-on does not necessarily define initial status of MOS device. Production process of MOS
does not define the initial operation status of the device. Immediately after the power source is
turned ON, the devices with reset function have not yet been initialized. Hence, power-on does
not guarantee out-pin levels, I/O settings or contents of registers. Device is not initialized until the
reset signal is received. Reset operation must be executed immediately after power-on for devices
having reset function.
Data Sheet M15773EJ 4V0DS
19
µµµµ
PD23C32000AL
These commodities, technology or software, must be exported in accordance
with the export administration regulations of the exporting country.
Diversion contrary to the law of that country is prohibited.
•
The information in this document is current as of February, 2003. The information is subject to
change without notice. For actual design-in, refer to the latest publications of NEC Electronics data
sheets or data books, etc., for the most up-to-date specifications of NEC Electronics products. Not
all products and/or types are available in every country. Please check with an NEC Electronics sales
representative for availability and additional information.
No part of this document may be copied or reproduced in any form or by any means without the prior
•
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appear in this document.
•
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Descriptions of circuits, software and other related information in this document are provided for illustrative
•
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circuits, software and information in the design of a customer's equipment shall be done under the full
responsibility of the customer. NEC Electronics assumes no responsibility for any losses incurred by
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•
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M8E 02. 11-1
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