UPD43256BGU-85LL Renesas Electronics America, UPD43256BGU-85LL Datasheet - Page 3

• Manufacturer Part Number: UPD43256BGU-85LL
• Manufacturer: Renesas Electronics America

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

Document No. M10770EJGV0DS00 (16th edition)
Date Published November 2009
Printed in Japan
Description
Features
• 32,768 words by 8 bits organization
• Fast access time: 70, 85, 100, 120 ns (MAX.)
• Low voltage operation (A version: V
• Low V
• /OE input for easy application
Notes 1. T
μ
μ
μ
μ
The
Battery backup is available. And A and B versions are wide voltage operations.
The
PD43256B-xxL
PD43256B-xxLL
PD43256B-Axx
PD43256B-Bxx
Part number
μ
μ
2. Access time: 85 ns (MAX.) (V
PD43256B is packed in 28-pin PLASTIC SOP and 28-pin PLASTIC TSOP (I) (8 x 13.4 mm).
PD43256B is a high speed, low power, and 262,144 bits (32,768 words by 8 bits) CMOS static RAM.
CC
data retention: 2.0 V (MIN.)
A
≤ 40 °C, V
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.
Note2
85, 100
CC
Access time
= 3.0 V
ns (MAX.)
100, 120
70, 85
Note2
, 120
256K-BIT CMOS STATIC RAM
Note2
CC
CC
= 3.0 to 5.5 V, B version: V
Operating supply Operating ambient
= 4.5 to 5.5 V)
32K-WORD BY 8-BIT
4.5 to 5.5
3.0 to 5.5
2.7 to 5.5
voltage
DATA SHEET
V
temperature
0 to 70
°C
CC
MOS INTEGRATED CIRCUIT
= 2.7 to 5.5 V)
At operating
mA (MAX.)
45
μ
PD43256B
Supply current
At standby
μ
A (MAX.)
50
15
At data retention
μ
A (MAX.)
1990, 2009
3
2
Note1