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PDF UPD23C64000JL Data sheet ( Hoja de datos )
| Número de pieza | UPD23C64000JL | |
| Descripción | 64M-BIT MASK-PROGRAMMABLE ROM | |
| Fabricantes | NEC | |
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DATA SHEET
MOS INTEGRATED CIRCUIT
µ PD23C64000JL
64M-BIT MASK-PROGRAMMABLE ROM
8M-WORD BY 8-BIT (BYTE MODE) / 4M-WORD BY 16-BIT (WORD MODE)
Description
The µPD23C64000JL is a 67,108,864 bits mask-programmable ROM. The word organization is selectable (BYTE
mode : 8,388,608 words by 8 bits, WORD mode : 4,194,304 words by 16 bits).
The active levels of OE (Output Enable Input) can be selected with mask-option.
The µPD23C64000JL is packed in 48-pin PLASTIC TSOP (I) and 44-pin PLASTIC SOP.
Features
• Word organization
8,388,608 words by 8 bits (BYTE mode)
4,194,304 words by 16 bits (WORD mode)
• Operating supply voltage : VCC = 2.7 to 3.6 V
Operating
supply voltage
VCC
3.0 V ± 0.3 V
3.3 V ± 0.3 V
Package
TSOP (I)
SOP
TSOP (I)
SOP
Access time
ns (MAX.)
100
120
90
100
Power supply current
(Active mode)
mA (MAX.)
40
35
55
50
Remark The access time and power supply current vary depending on the package type.
Standby current
(CMOS level input)
µA (MAX.)
30
Ordering Information
Part number
µPD23C64000JLGY-xxx-MJH
µPD23C64000JLGY-xxx-MKH
µPD23C64000JLGX-xxx
Package
48-pin PLASTIC TSOP (I) (12 × 18) (Normal bent)
48-pin PLASTIC TSOP (I) (12 × 18) (Reverse bent)
44-pin PLASTIC SOP (15.24 mm (600))
(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. M16084EJ4V0DS00 (4th edition)
Date Published February 2003 NS CP (K)
Printed in Japan
The mark shows major revised points.
2002
1 page  
µPD23C64000JL
Input / Output Pin Functions
Pin name
WORD, /BYTE
A0 to A21
(Address inputs)
O0 to O7, O8 to O14
(Data outputs)
O15, A−1
(Data output 15,
LSB Address input)
/CE
(Chip Enable)
/OE or OE or DC
(Output Enable, Don't Care)
VCC
GND
NC
Input / Output
Input
Input
Output
Output, Input
Input
Input
–
–
–
Function
The pin for switching WORD mode and BYTE mode.
High level : WORD mode (4M-word by 16-bit)
Low level : BYTE mode (8M-word by 8-bit)
Address input pins.
A0 to A21 are used differently in the WORD mode and the BYTE mode.
WORD mode (4M-word by 16-bit)
A0 to A21 are used as 22 bits address signals.
BYTE mode (8M-word by 8-bit)
A0 to A21 are used as the upper 22 bits of total 23 bits of address signal.
(The least significant bit (A−1) is combined to O15.)
Data output pins.
O0 to O7, O8 to O14 are used differently in the WORD mode and the BYTE
mode.
WORD mode (4M-word by 16-bit)
The lower 15 bits of 16 bits data outputs to O0 to O14.
(The most significant bit (O15) combined to A−1.)
BYTE mode (8M-word by 8-bit)
8 bits data outputs to O0 to O7 and also O8 to O14 are high impedance.
O15, A−1 are used differently in the WORD mode and the BYTE mode.
WORD mode (4M-word by 16-bit)
The most significant output data bus (O15).
BYTE mode (8M-word by 8-bit)
The least significant address bus (A−1).
Chip activating signal.
When the OE is active, output states are following.
High level: High-Z
Low level : Data out
Output enable signal. The active level of OE is mask option. The active level of
OE can be selected from high active, low active and Don’t care at order.
Supply voltage
Ground
Not internally connected (The signal can be connected).
Data Sheet M16084EJ4V0DS
5
5 Page 
µPD23C64000JL
Read Cycle Timing Chart
A0 to A21,
A−1 Note1
(Input)
tACC
tSKEW
tACC
/CE (Input)
tCE tDF Note2
/OE or OE (Input)
O0 to O7,
O8 to O15 Note3
(Input)
High-Z
tOE
tOH
Data out
High-Z
tSKEW
tSKEW
tACC
tDF Note2
tOH
Data out
tOH
Data out
Notes 1. During WORD mode, A−1 is O15.
2. tDF is the time from inactivation of Chip Enable input (/CE) or Output Enable input (/OE or OE) to
high impedance state output.
3. During BYTE mode, O8 to O14 are high impedance and O15 is A−1.
WORD, /BYTE Switch Timing Chart
A–1 (Input)
High-Z
High-Z
WORD, /BYTE (Input)
tOH
O0 to O7 (Output) Data Out
tDF
O8 to O15 (Output) Data Out
tACC
tOH
Data Out
High-Z
Remark Chip Enable (/CE) and Output Enable (/OE or OE) : Active.
tWB
Data Out
Data Out
Data Sheet M16084EJ4V0DS
11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet UPD23C64000JL.PDF ] | |
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