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PDF UPD23C128080BL Data sheet ( Hoja de datos )
| Número de pieza | UPD23C128080BL | |
| Descripción | (UPD23C128040BL / UPD23C128080BL) 128M-BIT MASK-PROGRAMMABLE ROM | |
| Fabricantes | NEC | |
| Logotipo |  |
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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
1 page  
µPD23C128040BL, 23C128080BL
44-pin PLASTIC SOP (15.24 mm (600))
[ µPD23C128040BLGX-xxx ]
[ µPD23C128080BLGX-xxx ]
Marking Side
A21
A18
A17
A7
A6
A5
A4
A3
A2
A1
A0
/CE
GND
/OE or OE or DC
O0
O8
O1
O9
O2
O10
O3
O11
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A20
A19
A8
A9
A10
A11
A12
A13
A14
A15
A16
A22
GND
O15
O7
O14
O6
O13
O5
O12
O4
VCC
A0 to A22
O0 to O15
/CE
/OE or OE
VCC
GND
DC
: Address inputs
: Data outputs
: Chip Enable
: Output Enable
: Supply voltage
: Ground
: Don’t Care
Remarks 1. Refer to Package Drawings for the 1-pin index mark.
2. With 44-pin PLASTIC SOP package products, only WORD mode (8,388,608 words x 16 bits) can
be used. There is no mode select (WORD, /BYTE) pin.
Data Sheet M16048EJ2V0DS
5
5 Page 
µPD23C128040BL, 23C128080BL
Cautions on power application
To ensure normal operation, always apply power using /CE following the procedure shown below.
1) Input a high level to /CE during and after power application.
2) Hold the high level input to /CE for 200 ns or longer (wait time).
3) Start normal operation after the wait time has elapsed.
Power Application Timing Chart 1 (When /CE is made high at power application)
/CE (Input)
Wait time
Normal operation
200 ns or longer
VCC
Power Application Timing Chart 2 (When /CE is made high after power application)
/CE (Input)
Wait time
Normal operation
200 ns or longer
VCC
Caution Other signals can be either high or low during the wait time.
Data Sheet M16048EJ2V0DS
11
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet UPD23C128080BL.PDF ] | |
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