UPD43256BGU-85LL Renesas Electronics America, UPD43256BGU-85LL Datasheet

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UPD43256BGU-85LL

Manufacturer Part Number
UPD43256BGU-85LL
Description
Manufacturer
Renesas Electronics America
Datasheet

Specifications of UPD43256BGU-85LL

Density
256Kb
Access Time (max)
85ns
Sync/async
Asynchronous
Architecture
Not Required
Clock Freq (max)
Not RequiredMHz
Operating Supply Voltage (typ)
5V
Address Bus
15b
Package Type
SOP
Operating Temp Range
0C to 70C
Number Of Ports
1
Supply Current
45mA
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
28
Word Size
8b
Number Of Words
32K
Lead Free Status / Rohs Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
UPD43256BGU-85LL
Manufacturer:
NEC
Quantity:
5 510
Part Number:
UPD43256BGU-85LL
Manufacturer:
HITACHI
Quantity:
5 510
Part Number:
UPD43256BGU-85LL
Manufacturer:
NEC
Quantity:
20 000
Part Number:
UPD43256BGU-85LL-E2
Manufacturer:
NEC
Quantity:
20 000
To our customers,
Corporation, and Renesas Electronics Corporation took over all the business of both
companies. Therefore, although the old company name remains in this document, it is a valid
Renesas Electronics document. We appreciate your understanding.
Issued by: Renesas Electronics Corporation (http://www.renesas.com)
Send any inquiries to http://www.renesas.com/inquiry.
On April 1
st
, 2010, NEC Electronics Corporation merged with Renesas Technology
Renesas Electronics website: http://www.renesas.com
Old Company Name in Catalogs and Other Documents
April 1
Renesas Electronics Corporation
st
, 2010

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UPD43256BGU-85LL Summary of contents

Page 1

To our customers, Old Company Name in Catalogs and Other Documents st On April 1 , 2010, NEC Electronics Corporation merged with Renesas Technology Corporation, and Renesas Electronics Corporation took over all the business of both companies. Therefore, although the ...

Page 2

All information included in this document is current as of the date this document is issued. Such information, however, is subject to change without any prior notice. Before purchasing or using any Renesas Electronics products listed herein, please confirm ...

Page 3

Description μ The PD43256B is a high speed, low power, and 262,144 bits (32,768 words by 8 bits) CMOS static RAM. Battery backup is available. And A and B versions are wide voltage operations. μ The PD43256B is packed in ...

Page 4

Ordering Information Part number Package μ PD43256BGU-70L 28-pin PLASTIC SOP μ PD43256BGU-85L (11.43 mm (450)) μ PD43256BGU-70LL μ PD43256BGU-85LL μ PD43256BGU-A85 μ PD43256BGU-A10 μ PD43256BGU-A12 μ PD43256BGU-B12 μ PD43256BGW-70LL-9JL 28-pin PLASTIC TSOP (I) μ PD43256BGW-85LL-9JL (8x13.4) (Normal bent) μ PD43256BGU-70L-A ...

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Pin Configurations (Marking Side) /xxx indicates active low signal. 28-pin PLASTIC SOP (11.43 mm (450)) A14 A12 I/O1 I/O2 I/O3 GND Remark Refer to Package Drawings for the 1-pin index mark. μ ...

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PLASTIC TSOP (I) (8x13.4) (Normal bent) /OE 1 A11 A13 5 / A14 8 A12 A14 : ...

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Block Diagram A0 Address buffer A14 I/O1 I/O8 /CS /OE / GND Truth Table /CS /OE /WE × × × Remark × Row ...

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Electrical Specifications Absolute Maximum Ratings Parameter Symbol Supply voltage Input / Output voltage Operating ambient temperature Storage temperature Note –3.0 V (MIN.) (Pulse width : 50 ns) Caution Exposing the device to stress above those listed in Absolute Maximum Rating ...

Page 9

DC Characteristics (Recommended Operating Conditions Unless Otherwise Noted) (1/2) Parameter Symbol Input leakage current I/O leakage current I/O / Operating ...

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DC Characteristics (Recommended Operating Conditions Unless Otherwise Noted) (2/2) Parameter Symbol Input leakage current I/O leakage current I/O / Operating ...

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AC Characteristics (Recommended Operating Conditions Unless Otherwise Noted) AC Test Conditions μ μ [ PD43256B-70L, PD43256B-85L, Input Waveform (Rise and Fall Time ≤ 5 ns) 2.2 V 1.5 V 0.8 V Output Waveform Output Load AC characteristics should be measured ...

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Read Cycle (1/2) Parameter Symbol Read cycle time t RC Address access time t AA /CS access time t ACS /OE access time t OE Output hold from address change t OH /CS to output in low impedance t CLZ ...

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Read Cycle Timing Chart Address (Input) /CS (Input) /OE (Input) I/O (Output) Remark In read cycle, /WE should be fixed to high level ACS t CLZ OLZ High impedance Data Sheet M10770EJGV0DS ...

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Write Cycle (1/2) Parameter Symbol Write cycle time t WC /CS to end of write t CW Address valid to end of write t AW Write pulse width t WP Data valid to end of write t DW Data hold ...

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Write Cycle Timing Chart 1 (/WE Controlled) Address (Input) /CS (Input /WE (Input) I/O (Input / Output) Indefinite data out Cautions 1. /CS or /WE should be fixed to high level during address transition. 2. When I/O pins ...

Page 16

Write Cycle Timing Chart 2 (/CS Controlled) Address (Input) /CS (Input) /WE (Input) High impedance I/O (Input) Cautions 1. /CS or /WE should be fixed to high level during address transition. 2. When I/O pins are in the output state, ...

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Low V Data Retention Characteristics (T CC Parameter Symbol /CS ≥ V Data retention supply voltage V CCDR Data retention supply current I V CCDR CC Chip deselection t CDR to data retention mode Operation recovery time t R μ ...

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Package Drawings 28-PIN PLASTIC SOP (11.43 mm (450 NOTE Each lead centerline is located within 0. its true position (T.P.) at maximum material condition ...

Page 19

PLASTIC TSOP(I) (8x13. NOTES 1. Each lead centerline is located within 0. its true position (T.P.) at maximum material condition. 2. "A" excludes mold flash. (Includes mold flash : 8.4mm ...

Page 20

Recommended Soldering Conditions Please consult with our sales offices for soldering conditions of the Types of Surface Mount Device μ PD43256BGU-xxL : 28-pin PLASTIC SOP (11.43 mm (450)) μ PD43256BGU-xxLL : 28-pin PLASTIC SOP (11.43 mm (450)) μ PD43256BGU-Axx : ...

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Revision History Edition/ Page Date This Previous edition edition 16th edition/ through through Nov. 2009 Type of Description revision Modification Ordering Information revised. Data Sheet M10770EJGV0DS μ PD43256B 19 ...

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MEMO ] 20 Data Sheet M10770EJGV0DS μ PD43256B ...

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MEMO ] Data Sheet M10770EJGV0DS μ PD43256B 21 ...

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MEMO ] 22 Data Sheet M10770EJGV0DS μ PD43256B ...

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NOTES FOR CMOS DEVICES 1 VOLTAGE APPLICATION WAVEFORM AT INPUT PIN Waveform distortion due to input noise or a reflected wave may cause malfunction. If the input of the CMOS device stays in the area between V malfunction. Take care ...

Page 26

The information in this document is current as of November, 2009. The information is subject to change without notice. For actual design-in, refer to the latest publications of NEC Electronics data sheets, etc., for the most up-to-date specifications of ...

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