FM33256B-G Cypress Semiconductor, FM33256B-G Datasheet - Page 15

• 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
17h
16h
15h
14h
13h
12h
11h
10h
0Fh
0Eh
0Dh
NVC
read/write.
Serial Number Byte 7
Serial Number Byte 6
Serial Number Byte 5
Serial Number Byte 4
Serial Number Byte 3
Serial Number Byte 2
Serial Number Byte 1
Serial Number Byte 0
All serial number bytes are read/write when SNL=0, read-only when SNL=1. Nonvolatile.
Event Counter Byte 1
Event Counter Byte 1. Increments on programmed edge event on CNT input. Nonvolatile when NVC=1,
Battery-backed when NVC=0, read/write.
Event Counter Byte 0
Event Counter Byte 0. Increments on programmed edge event on CNT input. Nonvolatile when NVC=1,
Battery-backed when NVC=0, read/write.
Event Counter Control
Nonvolatile/Volatile Counter: Setting this bit to 1 makes the counter nonvolatile and counter operates only when
V
V
DD
BAK
SN.63
SN.55
SN.47
SN.39
SN.31
SN.23
SN.15
EC.15
NVC
SN.7
EC.7
D7
D7
D7
D7
D7
D7
D7
D7
D7
D7
D7
is greater than V
or V
Setting
2.60V
2.75V
2.9V
3.0V
DD
power. If the NVC bit is changed, the counter value is not valid. Nonvolatile, read/write.
SN.62
SN.54
SN.46
SN.38
SN.30
SN.22
SN.14
EC.14
SN.6
EC.6
D6
D6
D6
D6
D6
D6
D6
D6
D6
D6
D6
-
TP
VTP(1:0)
00 (factory default)
01
10
11
. Setting this bit to 0 makes the counter volatile, which allows counter operation under
SN.61
SN.53
SN.45
SN.37
SN.29
SN.21
SN.13
EC.13
SN.5
EC.5
D5
D5
D5
D5
D5
D5
D5
D5
D5
D5
D5
-
SN.60
SN.52
SN.44
SN.36
SN.28
SN.20
SN.12
EC.12
SN.4
EC.4
D4
D4
D4
D4
D4
D4
D4
D4
D4
D4
D4
-
SN.59
SN.51
SN.43
SN.35
SN.27
SN.19
SN.11
EC.11
SN.3
EC.3
D3
D3
D3
D3
D3
D3
D3
D3
D3
D3
D3
RC
1850 Ramtron Drive, Colorado Springs, CO 80921
FM33256B SPI Companion w/ FRAM
SN.58
SN.50
SN.42
SN.34
SN.26
SN.18
SN.10
EC.10
Ramtron International Corporation
SN.2
EC.2
WC
D2
D2
D2
D2
D2
D2
D2
D2
D2
D2
D2
(800) 545-FRAM, [phone]
SN.57
SN.49
SN.41
SN.33
SN.25
SN.17
POLL
SN.9
SN.1
EC.9
EC.1
D1
D1
D1
D1
D1
D1
D1
D1
D1
D1
D1
www.ramtron.com
Page 15 of 28
SN.56
SN.48
SN.40
SN.32
SN.24
SN.16
SN.8
SN.0
EC.8
EC.0
D0
D0
D0
D0
D0
D0
D0
D0
D0
D0
D0
CP