Motore di ricerca datesheet componenti elettronici
  Italian  ▼
ALLDATASHEETIT.COM

X  

FM31L272-GTR Scheda tecnica(PDF) 3 Page - Ramtron International Corporation

Il numero della parte FM31L272-GTR
Spiegazioni elettronici  3V Integrated Processor Companion with Memory
Download  25 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Produttore elettronici  RAMTRON [Ramtron International Corporation]
Homepage  http://www.ramtron.com
Logo RAMTRON - Ramtron International Corporation

FM31L272-GTR Scheda tecnica(HTML) 3 Page - Ramtron International Corporation

  FM31L272-GTR Datasheet HTML 1Page - Ramtron International Corporation FM31L272-GTR Datasheet HTML 2Page - Ramtron International Corporation FM31L272-GTR Datasheet HTML 3Page - Ramtron International Corporation FM31L272-GTR Datasheet HTML 4Page - Ramtron International Corporation FM31L272-GTR Datasheet HTML 5Page - Ramtron International Corporation FM31L272-GTR Datasheet HTML 6Page - Ramtron International Corporation FM31L272-GTR Datasheet HTML 7Page - Ramtron International Corporation FM31L272-GTR Datasheet HTML 8Page - Ramtron International Corporation FM31L272-GTR Datasheet HTML 9Page - Ramtron International Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 3 / 25 page
background image
FM31L278/L276/L274/L272 - 3V I2C Companion
Rev. 3.0
Feb. 2009
Page 3 of 25
Figure 1. Block Diagram
Pin Descriptions
Pin Name
Type
Pin Description
A0, A1
Input
Device select inputs are used to address multiple memories on a serial bus. To select the
device the address value on the two pins must match the corresponding bits contained in
the device address. The device select pins are pulled down internally.
CNT1,
CNT2
Input
Event Counter Inputs: These battery-backed inputs increment counters when an edge is
detected on the corresponding CNT pin. The polarity is programmable. These pins
should not be left floating. Tie to ground if these pins are not used.
CAL/PFO
Output
In calibration mode, this pin supplies a 512 Hz square-wave output for clock calibration.
In normal operation, this is the early power-fail output.
X1, X2
I/O
32.768 kHz crystal connection. When using an external oscillator, apply the clock to X1
and a DC mid-level to X2 (see Crystal Oscillator section for suggestions).
/RST
I/O
Active low reset output with weak pull-up. Also input for manual reset.
SDA
I/O
Serial Data & Address: This is a bi-directional line for the two-wire interface. It is open-
drain and is intended to be wire-OR’d with other devices on the two-wire bus. The input
buffer incorporates a Schmitt trigger for noise immunity and the output driver includes
slope control for falling edges. A pull-up resistor is required.
SCL
Input
Serial Clock: The serial clock line for the two-wire interface. Data is clocked out of the
part on the falling edge, and in on the rising edge. The SCL input also incorporates a
Schmitt trigger input for noise immunity.
PFI
Input
Early Power-fail Input: Typically connected to an unregulated power supply to detect an
early power failure. This pin should not be left floating.
VBAK
Supply
Backup supply voltage: A 3V battery or a large value capacitor. If no backup supply is
used, this pin should be tied to ground and the VBC bit should be cleared. The trickle
charger is UL recognized and ensures no excessive current when using a lithium battery.
VDD
Supply
Supply Voltage
VSS
Supply
Ground
F-RAM
Array
2-Wire
Interface
SCL
SDA
RST
A1, A0
CAL/PFO
PFI
VDD
VBAK
RTC
2.5V
-
+
RTC Registers
Event
Counters
CNT1
CNT2
Special
Function
Registers
S/N
X1
X2
LockOut
LockOut
+
-
1.2V
Watchdog
LV Detect
Switched Power
512Hz
RTC Cal.
Battery Backed
Nonvolatile


Codice articolo simile - FM31L272-GTR

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
Ramtron International C...
FM31L276 RAMTRON-FM31L276 Datasheet
461Kb / 26P
   3V Integrated Processor Companion with Memory
logo
Cypress Semiconductor
FM31L276 CYPRESS-FM31L276 Datasheet
628Kb / 36P
   64-Kbit/256-Kbit Integrated Processor Companion with F-RAM
FM31L276-G CYPRESS-FM31L276-G Datasheet
628Kb / 36P
   64-Kbit/256-Kbit Integrated Processor Companion with F-RAM
FM31L276-GTR CYPRESS-FM31L276-GTR Datasheet
628Kb / 36P
   64-Kbit/256-Kbit Integrated Processor Companion with F-RAM
logo
Ramtron International C...
FM31L278 RAMTRON-FM31L278 Datasheet
461Kb / 26P
   3V Integrated Processor Companion with Memory
More results

Descrizione simile - FM31L272-GTR

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
Ramtron International C...
FM32L278 RAMTRON-FM32L278 Datasheet
275Kb / 21P
   3V Integrated Processor Companion with Memory
FM33256 RAMTRON-FM33256 Datasheet
316Kb / 28P
   3V Integrated Processor Companion with Memory
FM33256 RAMTRON-FM33256_09 Datasheet
319Kb / 28P
   3V Integrated Processor Companion with Memory
FM31L278 RAMTRON-FM31L278_11 Datasheet
461Kb / 26P
   3V Integrated Processor Companion with Memory
logo
List of Unclassifed Man...
FM3104 ETC1-FM3104 Datasheet
252Kb / 22P
   Integrated Processor Companion with Memory
FM3204 ETC1-FM3204 Datasheet
273Kb / 20P
   Integrated Processor Companion with Memory
logo
Ramtron International C...
FM31256 RAMTRON-FM31256_11 Datasheet
455Kb / 26P
   Integrated Processor Companion with Memory
FM3104 RAMTRON-FM3104 Datasheet
546Kb / 25P
   Integrated Processor Companion with Memory
logo
Cypress Semiconductor
FM31256-GTR CYPRESS-FM31256-GTR Datasheet
773Kb / 27P
   Integrated Processor Companion with Memory
FM31256-G CYPRESS-FM31256-G Datasheet
773Kb / 27P
   Integrated Processor Companion with Memory
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25


Scheda tecnica Scarica

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEETIT.COM
Lei ha avuto il aiuto da alldatasheet?  [ DONATE ] 

Di alldatasheet   |   Richest di pubblicita   |   contatti   |   Privacy Policy   |   scambio Link   |   Ricerca produttore
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com