FM33256B-G Cypress Semiconductor, FM33256B-G Datasheet - Page 3

• Manufacturer Part Number: FM33256B-G
• Description: Real Time Clock 256Kb F-RAM Processor Companion
• Manufacturer: Cypress Semiconductor

Specifications of FM33256B-G

• Rohs: yes
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 2.7 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-14
• Factory Pack Quantity: 56

This product conforms to specifications per the terms of the Ramtron
standard warranty. The product has completed Ramtron’s internal
qualification testing and has reached production status.
Rev. 3.0
Aug. 2012
Ordering Information
Base
Configuration
FM33256B
FM33256B
VBAK
VDD
SCK
RST
CNT
PFO
PFI
CS
SO
SI
V
SW
Interface
256Kb
256Kb
LockOut
Memory
Size
SPI
+
-
Nonvolatile
+
-
Operating
2.7-3.6V
2.7-3.6V
Voltage
1.5V
Manual Reset
Watchdog
LV Detect
Switched Power
Battery Backed
Figure 1. Block Diagram
Max. Clock
16 MHz
16 MHz
Freq.
RTC Cal.
Registers
Function
Counter
Special
Event
S/N
2.6V, 2.75, 2.9, 3.0V
2.6V, 2.75, 2.9, 3.0V
Reset Thresholds
NV/BB User Programmable
1850 Ramtron Drive, Colorado Springs, CO 80921
FM33256B SPI Companion w/ FRAM
RTC Registers
Ramtron International Corporation
FRAM
Array
Alarm
RTC
512Hz/SqW
Ordering Part Number
FM33256B-G
FM33256B-GTR (tape&reel)
(800) 545-FRAM, [phone]
Alarm
www.ramtron.com
X2
ACS
X1
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