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PDF MB85RS64 Data sheet ( Hoja de datos )
| Número de pieza | MB85RS64 | |
| Descripción | 64K (8K x 8) Bit SPI | |
| Fabricantes | Fujitsu | |
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FUJITSU SEMICONDUCTOR
DATA SHEET
Memory FRAM
DS501-00012-5v0-E
64 K (8 K × 8) Bit SPI
MB85RS64
■ DESCRIPTION
MB85RS64 is a FRAM (Ferroelectric Random Access Memory) chip in a configuration of 8,192 words ×
8 bits, using the ferroelectric process and silicon gate CMOS process technologies for forming the nonvolatile
memory cells.
MB85RS64 adopts the Serial Peripheral Interface (SPI).
The MB85RS64 is able to retain data without using a back-up battery, as is needed for SRAM.
The memory cells used in the MB85RS64 can be used for 1012 read/write operations, which is a significant
improvement over the number of read and write operations supported by Flash memory and E2PROM.
MB85RS64 does not take long time to write data like Flash memories or E2PROM, and MB85RS64 takes
no wait time.
■ FEATURES
• Bit configuration
: 8,192 words × 8 bits
• Serial Peripheral Interface
: SPI (Serial Peripheral Interface)
Correspondent to SPI mode 0 (0, 0) and mode 3 (1, 1)
• Operating frequency
: 20 MHz (Max)
• High endurance
: 1012 times / byte
• Data retention
: 10 years ( + 85 °C), 95 years ( + 55 °C), over 200 years ( + 35 °C)
• Operating power supply voltage : 2.7 V to 3.6 V
• Low power consumption
: Operating power supply current 1.5 mA (Typ@20 MHz)
Standby current 5 μA (Typ)
• Operation ambient temperature range : − 40 °C to +85 °C
• Package
: 8-pin plastic SOP (FPT-8P-M02) RoHS compliant
Copyright©2011-2013 FUJITSU SEMICONDUCTOR LIMITED All rights reserved
2013.9
1 page  
MB85RS64
■ SERIAL PERIPHERAL INTERFACE (SPI)
MB85RS64 works as a slave of SPI. More than 2 devices can be connected by using microcontroller equipped
with SPI port. By using a microcontroller not equipped with SPI port, SI and SO can be bus connected to use.
SCK
MOSI
MISO
SPI
Microcontroller
SS1
SO SI SCK
MB85RS64
CS HOLD
SO SI SCK
MB85RS64
CS HOLD
SS2
HOLD1
HOLD2
System Configuration with SPI Port
MOSI : Master Out Slave In
MISO : Master In Slave Out
SS : Slave Select
Microcontroller
SO SI SCK
MB85RS64
CS HOLD
System Configuration without SPI Port
DS501-00012-5v0-E
5
5 Page 
MB85RS64
■ ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Min
Power supply voltage*
VDD − 0.5
Input voltage*
Output voltage*
Operation ambient temperature
VIN
VOUT
TA
− 0.5
− 0.5
− 40
Storage temperature
Tstg
− 55
*:These parameters are based on the condition that VSS is 0 V.
Rating
Max
+ 4.0
VDD + 0.5
VDD + 0.5
+ 85
+ 125
Unit
V
V
V
°C
°C
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,
temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.
■ RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Min
Power supply voltage*
VDD 2.7
Input high voltage*
VIH VDD × 0.8
Input low voltage*
VIL − 0.5
Operation ambient temperature
TA
− 40
*:These parameters are based on the condition that VSS is 0 V.
Value
Typ
3.3
⎯
⎯
⎯
Max
3.6
VDD + 0.3
VDD × 0.2
+ 85
Unit
V
V
V
°C
WARNING: The recommended operating conditions are required in order to ensure the normal operation of
the semiconductor device. All of the device's electrical characteristics are warranted when the
device is operated within these ranges.
Always use semiconductor devices within their recommended operating condition ranges.
Operation outside these ranges may adversely affect reliability and could result in device failure.
No warranty is made with respect to uses, operating conditions, or combinations not represented
on the data sheet. Users considering application outside the listed conditions are advised to contact
their representatives beforehand.
DS501-00012-5v0-E
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MB85RS64.PDF ] | |
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