UPD23C128040BL Datasheet, PDF (1/24 Pages) NEC – 128M-BIT MASK-PROGRAMMABLE ROM 16M-WORD BY 8-BIT (BYTE MODE) / 8M-WORD BY 16-BIT (WORD MODE) PAGE ACCESS MODE

DATA SHEET
MOS INTEGRATED CIRCUIT
µPD23C128040BL, 23C128080BL
128M-BIT MASK-PROGRAMMABLE ROM
16M-WORD BY 8-BIT (BYTE MODE) / 8M-WORD BY 16-BIT (WORD MODE)
PAGE ACCESS MODE
Description
The µPD23C128040BL and µPD23C128080BL are a 134,217,728 bits mask-programmable ROM. The word
organization is selectable (BYTE mode : 16,777,216 words by 8 bits, WORD mode : 8,388,608 words by 16 bits).
With 44-pin PLASTIC SOP package products, only WORD mode can be used; it is not possible to switch to BYTE
mode.
The active levels of OE (Output Enable Input) can be selected with mask-option.
The µPD23C128040BL and µPD23C128080BL are packed in 48-pin PLASTIC TSOP(I) and 44-pin PLASTIC SOP.
Features
• Word organization
16,777,216 words by 8 bits (BYTE mode) ^Note
8,388,608 words by 16 bits (WORD mode) ^Note
Note With 44-pin PLASTIC SOP package products, only WORD mode can be used.
It is not possible to switch to BYTE mode.
• Page access mode
BYTE mode : 8 byte random page access (µPD23C128040BL)
16 byte random page access (µPD23C128080BL)
WORD mode : 4 word random page access (µPD23C128040BL)
8 word random page access (µPD23C128080BL)
• Operating supply voltage : VCC = 2.7 to 3.6 V
Operating supply
Access time /
Power supply current (Active mode)
voltage
Page access time
mA (MAX.)
VCC
ns (MAX.)
µPD23C128040BL µPD23C128080BL
3.0 V ± 0.3 V
120 / 25
50
70
3.3 V ± 0.3 V
100 / 25
55
75
Standby current
(CMOS level input)
µA (MAX.)
30
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. M16048EJ2V0DS00 (2nd edition)
Date Published February 2003 NS CP (K)
Printed in Japan
The mark shows major revised points.
2002